BOOK OF ABSTRACTS

APS2017

August 29-31th, 2017

http://aps2017.interconf.org

Department of Physics Faculty of Mathematics and Natural Sciences

Institute for Reseach and Community Services (LPPM) Institut Teknologi Bandung

7th ASIAN PHYSICS SYMPOSIUM

East Hall - Institut Teknologi Bandung W e s t J a v a , I n d o n e s i a

Book of Abstracts

29-31 August 2017

PREFACE

The 7th Asian Physics Symposium 2017 (APS 2017) is organized by the Physics Department,

Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, in

collaboration with HFI (Indonesian Physical Society), PAPSI (Physics and Applied Physics

Society of Indonesia), HANI (Indonesian Nuclear Scientist Society), HRMI (Indonesian

Material Research Society), HAGI (Indonesian Geophysicist Society) – West Java Chapter, and

HFMBI (Indonesian Medical Physicist and Biophysicist Society).

APS 2017 is aimed in providing the forum of scientific communication and interaction

among distinguished scientists working in the physics and its related fields. In this scientific

event the latest research results will present the state-of-the-art development in the field

and help to guide our future research directions. It is also designed to offer the opportunity

of making direct contacts for the young Indonesian scientists and students with well-known

scientists abroad and thereby fostering the existing research collaborations and extending

international research networking for the future.

The scope of research results have been presented and discussed in this symposium covers

theoretical high energy physics, materials sciences and technology, biophysics and medical

physics, nuclear science and engineering, earth and planetary sciences, computational

physics, instrumentation and measurement, physics education, and interdisciplinary physics.

The program of APS 2017 features 6 invited talks and 170 contributed oral presentations,

which come from 5 different countries: Japan, France, Turkey, Malaysia, and Indonesia. All

papers have been reviewed after they are presented in this event. Selected papers will be

published in this Institute of Physics (IoP) Conference Series.

Finally, I would like to express my sincere appreciation to all of authors for their valuable

contributions and also to the members of the committee for their excellent works in

preparing and finalizing this document.

Bandung, August 2017

Chairman of APS 2017,

Prof. Dr. Abdul Waris

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29-31 August 2017

CONFERENCE PROGRAM AND PRESENTATION SCHEDULE

Day 1: Wednesday, 30 August 2017

08.30 09.00 Registration and Morning Snack

09.00 09.40 Opening Ceremony

09.40 10.20

Keynote 1: Motoyasu Kinoshita, The University of Tokyo, Japan,

ITMSF (President)

10.20 11.00 Keynote 2: Thomas Djamaluddin, LAPAN, Indonesia

11.00 11.40 Keynote 3: Khairurrijal, ITB, Indonesia

11.40 13.00 Lunch Break

13.00 14.30 Parallel Session 1

Room A Room B Room C Room D Room E Room F Room G

ABS-3 ABS-87 ABS-149 ABS-194 ABS-127 ABS-36 ABS-151

ABS-27 ABS-114 ABS-150 ABS-206 ABS-158 ABS-38 ABS-178

ABS-31 ABS-118 ABS-152 ABS-113 ABS-165 ABS-40 ABS-179

ABS-45 ABS-128 ABS-153 ABS-143 ABS-172 ABS-41 ABS-185

ABS-46 ABS-145 ABS-154 ABS-67 ABS-175 ABS-42 ABS-189

ABS-52 ABS-182 ABS-155 ABS-7 ABS-188 ABS-47 ABS-210

14.30 15.00 Coffee Break

15.00 16.30 Parallel Session 2

Room A Room B Room C Room D Room E Room F Room G

ABS-120 ABS-193 ABS-157 ABS-26 ABS-9 ABS-48 ABS-13

ABS-121 ABS-201 ABS-159 ABS-102 ABS-30 ABS-50 ABS-15

ABS-138 ABS-204 ABS-160 ABS-135 ABS-76 ABS-51 ABS-16

ABS-144 ABS-212 ABS-161 ABS-174 ABS-111 ABS-53 ABS-17

ABS-192 ABS-8 ABS-162 ABS-202 ABS-184 ABS-61 ABS-18

ABS-196 ABS-12 ABS-163 ABS-209 ABS-200 ABS-64 ABS-19

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29-31 August 2017

Day 2: Thursday, 31 August 2017

08.30 09.00 Registration and Morning Snack

09.00 09.40 Keynote 6: Sumer Sahin, Near East University, Turkey

09.40 10.20 Keynote 7: Iman Santoso, UGM, Indonesia

10.20 11.00 Keynote 8: R. Bagus Endar BN, ITB, Indonesia

11.00 13.00 Lunch Break

13.00 14.30 Parallel Session 3

Room A Room B Room C Room D Room E Room F Room G

ABS-58 ABS-60 ABS-164 ABS-133 ABS-205 ABS-66 ABS-23

ABS-28 ABS-62 ABS-166 ABS-21 ABS-207 ABS-68 ABS-29

ABS-43 ABS-74 ABS-167 ABS-22 ABS-213 ABS-71 ABS-44

ABS-54 ABS-100 ABS-168 ABS-25 ABS-214 ABS-72 ABS-63

ABS-69 ABS-101 ABS-169 ABS-56 ABS-215 ABS-82 ABS-119

ABS-95 ABS-129 ABS-170 ABS-57 ABS-216 ABS-89 ABS-131

14.30 15.00 Coffee Break

15.00 16.30 Parallel Session 4

Room A Room B Room C Room D Room E Room F Room G

ABS-181 ABS-130 ABS-173 ABS-59 ABS-217 ABS-91 ABS-134

ABS-211 ABS-136 ABS-176 ABS-65 ABS-218 ABS-104 ABS-137

ABS-77 ABS-139 ABS-177 ABS-75 ABS-208 ABS-107 ABS-171

ABS-11 ABS-140 ABS-180 ABS-81 ABS-2 ABS-123 ABS-183

ABS-84 ABS-142 ABS-187 ABS-116 ABS-10 ABS-124 ABS-197

ABS-85 ABS-148 ABS-190 ABS-156 ABS-34 ABS-141 ABS-198

ABS-219

16.30 16.45 Closing Ceremony

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29-31 August 2017

ROOMS MAP 7TH ASIAN PHYSICS SYMPOSIUM 2017

AULA TIMUR, INSTITUT TEKNOLOGI BANDUNG

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29-31 August 2017

TABLE OF CONTENTS

Preface i

Conference Program and Presentation Schedule ii

Rooms Map iv

Table of Content v

BIOPHYSICS AND MEDICAL PHYSICS

[ABS-3] A size-specific effective dose for patients undergoing CT examinations

1

Choirul Anam (a*), Freddy Haryanto (b), Rena Widita (b), Idam Arif (b), Toshioh Fujibuchi (c), Geoff Dougherty (d)

[ABS-27] Fluence Profiles and Energy Spectral Distributions of 100, 110, And 125 kVp Photon Beams: Results of Monte Carlo Simulations for A Varian OBI 1.4 CBCT

2

Hendra Setiawan (a*), Rena Widita (a)

[ABS-31] The impact of head miscentering on the eye lens dose in CT scanning: Phantoms study

3

Choirul Anam (a*), Toshioh Fujibuchi (b), Takatoshi Toyoda (b), Naoki Sato (b), Freddy Haryanto (c), Rena Widita (c), Idam Arif (c), and Geoff Dougherty(d)

[ABS-45] Characterization of Calcium Powders from Merauke Mangrove Crab Shells

4

Khaeriah Dahlan, Endang Haryati, Octolia Togibasa, Kiagus Dahlan

[ABS-46] PROTEIN AND MINERALS ANALYSES OF MANGROVE CRAB SHELLS AS FOUNDATION ON BIOCERAMIC COMPONENTS FROM MERAUKE

5

Endang Haryati*1), Khaeriah Dahlan1), Octolia Togibasa1), Kiagus Dahlan2)

[ABS-52] Characterization of Bio-battery from Tropical Almond Paste 6

Octolia Togibasa, Endang Haryati, Khaeriah Dahlan, Yane Ansanay, Tresiani Siregar, Mersi Natalia Liling

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[ABS-58] The Influence of Lea-Catcheside Time Factor in Fractionated Radiotherapy

7

Hasto Arief N (a*), Rena Widita Ph.D (a)

[ABS-120] Study of Electroencephalogram pattern from Eye Response to Flickering Light

8

Meda C. Fitriani, Siti N. Khotimah, Freddy Haryanto, and Suprijadi

[ABS-121] Investigation of Pulse rate and ABPI (Ankle-Brachial Pressure Index) in Relax Condition and after Exercise

9

Puspa Monalisa, Siti N. Khotimah, Sparisoma Viridi, and Freddy Haryanto

[ABS-138] Myocardial Infarction Detection System from PTB Diagnostic ECG Database Using Fuzzy Inference System for S-T Waves

10

Ardan Adi Nugroho, Miftahul Maarif, Aisyah Zahrotul Hidayah, Olivia Maftukhaturrizqoh, Titin Sri Martini

[ABS-144] Heart Sounds Determination Based on Sliding Window Maximum Method

11

Bintang Adi Kusuma, Nuryani & Darmanto

[ABS-192] Superabsorbent polymers of glucomannan-poly(potassium acrylic-acrylamide) hydrogel: Synthesis and characterization by gamma irradiation for personnel care application

12

S.Mulijani, Sri Sugiarti, Qory and Erizal

[ABS-196] Chitosan Nanoparticle Based Coating as Post-harvest Technology in Banana

13

Rizkita Rachmi Esyanti(1,2), Herafi Zaskia(1), Annisa Amalia(1), Husna Nugrahapraja (1,3)

COMPUTATIONAL PHYSICS

[ABS-28] Theoretical study of the frontier orbitals of tetrahydrocurcumin in hydrogen atom transfer mechanism

14

Lusia S. P. Boli1*, Vera Khoirunisa1, Adhitya G. Saputro1,2, Mohammad K. Agusta1,2, Febdian Rusydi3, Heni Rachmawati2,4, Hermawan K. Dipojono1,2

[ABS-43] Enthalpy of Formation of NaxCoO2 and (Na,Mg)xCoO2 Systems: A First Principle Calculation Study

15

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29-31 August 2017

I. Kurniawan and B. Prijamboedi

[ABS-54] Phosphorus Dopant Configuration on Active Sites of the Pyrolyzed Fe/N/C Catalyst

16

Apresio Kefin Fajrial, Adhitya Gandaryus Saputro, Mohammad Kemal Agusta, Hermawan K. Dipojono

[ABS-69] Casimir effect between two intruders in two-dimension self-gravitation granular particles system

17

Putri Mustika Widartiningsih, Siti Nurul Khotimah, Budi Dermawan, Sparisoma Viridi

[ABS-77] Extending Voigt and Reuss Model using Virial Expansion for Simulating Self-Memory Composite

18

Wibias Muliawan, Widayani, Sparisoma Viridi

[ABS-95] Study of Star Orbit Around Axisymmetric Potential of Milky Way Galaxy

19

A. Fitriana 1, MI Arifiyanto 2

[ABS-181] SELF-SIMILARITY RELATIONSHIP MODEL PIGEONHOLE TO FRACTAL DIMENSION ON 3D POROUS ROCK MODEL

20

Aceng Kurnia Rochmatulloh, Ulpa Zein Fawziah, Selly Feranie, Fourier Dzar Eljabbar Latief

[ABS-211] Effect of High Pressure on Structural and Electronic Properties of Silicon System with Fd3m Space Group

21

Shibghatullah Muhammady*, Sendi Nugraha Pratama, Yudhi Kurniawan, Yudi Darma**

CONDENSED MATTER PHYSICS

[ABS-11] Theoretical Investigation on the Possibility of Montmorillonite in Reducing Air Pollution: A Density Functional Theory Study

22

Triati Dewi Kencana Wungu (a,c*), Meqorry Yusfi (b), Suprijadi (b,c)

[ABS-84] Thermophysical Parameters of Organic PCM Coconut Oil from T-History Method and Its Variation with Chemical Dopant

23

Alfriska O Silalahi1, I M Sutjahja1, D Kurnia1 and S Wonorahardjo2

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[ABS-85] The Role of Micro Particle Dopant to the Thermal Conductivities of PCM Coconut Oil by Means of T-History Method

24

Alfriska O. Silalahi,1 I.M. Sutjahja,1 D. Kurnia,1 S. Wonorahardjo2

[ABS-87] Enthalpy-Temperature Curve of Phase Change Materials of CaCl2.6H2O and Coconut Oil for Latent Heat Energy Storage

25

Alfriska O Silalahi1, Nissa Sukmawati1, I M Sutjahja1, D Kurnia1 and S Wonorahardjo2

[ABS-114] Study of The PDMS / Silica Cristobalite Composite Hydrophobic Surface from Natural Sand

26

Roihatur Rohmah (a*), Moch. Zainuri (b)

[ABS-118] Influences of Aluminum Content to The Aspect Ratio (L/r) of Aluminum doped ZnO Nanorod; Growth by Self-Assembly Method

27

Annisa Aprilia1, Heri Fernando1, Lusi Safriani1, Ayi Bahtiar1, Tuti Susilawati1 dan Rahmat Hidayat2

[ABS-128] The NIR Absorbance Properties of Carbon Nanoparticle Prepared by Hydrothermal Route: Time and Temperature Reaction Dependence

28

Ferry Iskandar1,3,*, Suci Khairani1, Akfiny Hasdi Aimon1, Fitri Aulia Permatasari2 and Prasiwi Handari Jati1

[ABS-145] Effect of Microwave Duty Cycle on The Electrical Conductivity of Reduced Graphene Oxide (RGO)

29

Ferry Iskandar1,3,*, Utiya Hikmah1, Oktaviardi Bityasmawan Abdillah1, Akfiny Hasdi Aimon1 , Dadang Suhendar2

[ABS-182] Spectral Distribution of Fano Interferences in Classical Damped Oscillation

30

P.M Widartiningsih, D. Rahmawati , A. Fitriana , A.M Yusuf, Irhas, M. Yunus

[ABS-193] Electronic Structure of Inorganic Alkali Lead Iodide APbI3 (A=Li, Na, K, and Cs) from Density Functional Theory (DFT) Calculation Results

31

Pina Pitriana, Triati Dewi Kencana Wungu, Herman and Rahmat Hidayat

[ABS-201] RHEED patterns of 1 nm carbon layer coated Si (111) surface using Sputtering

32

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Risa Suryana, Dianisa Khoirum Sandi, Hitoshi Nakahara, Yahachi Saito

[ABS-204] Modeling of Electron Transmittance and Tunneling Current through a Trapezoidal Potential Barrier by Considering Spin Polarization Effect

33

Fatimah A. Noor*, Ezra Nabila, Hantika Mardianti, Tisa I. Ariani and Khairurrijal

[ABS-212] Critical point analysis of ZnO thin films on different electronic environments

34

Muhammad A. K. Purbayanto1*, Rafi Ichwan1, Eka Nurfani1, Yudi Darma1*

EARTH AND PLANETARY SCIENCES

[ABS-8] Application of Empirical Mode Decomposition to Noise Reduction in Seismic Data

35

Arya Dwi Candra, Puput Eka Suryani

[ABS-12] Gravity Survey in Pandan Mountain 36

Eko Januari Wahyudi, Djoko Santoso, Ahmad F. M. Ulum

[ABS-60] Preliminary Study on Electrical Properties of Hydrocarbon-Contaminated Soils at an Artisanal Oil Field in Central Java, Indonesia

37

Eleonora Agustine1 , Dini Fitriani1, Wahyu Srigutomo2, Mia Uswatun Hasanah1, Anggie Susilawati1, Ilma Danandika Dimawani1, Teguh Deo Pambudi1, , Silvia Jannatul Fajar3, Trimadona2

[ABS-62] 3-D Modeling of Time Domain Electromagnetics (TDEM) Method to Analyze the Layered Earth Structure in the Geothermal Systems

38

Cahyo Aji Hapsoro(1*), Wahyu Srigutomo (1), Acep Purqon(1)

[ABS-67] Forward Modeling of Self Potential Time Series Response for DNAPL Detection in Closed Aquifer

39

Harry Mahardika, Neny Kurniasih, Muhammad Zaki, dan Aditya Fabio

[ABS-74] Geomagnetic Map of Field Camp Geophysics in Karangsambung using Data Acquisition 2005-2017

40

Eko Januari Wahyudi and Dedi Sukmayadi

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29-31 August 2017

[ABS-100] Distribution of solar energetic particles and magnetic field gradient related to solar storms in solar cycle 24

41

Dhani Herdiwijaya

[ABS-101] Development of Data Acquisition Instrumentation and Inversion System for Earth Resistivity Survey in a Smart Integrated System

42

Ihsan Imaduddin, Wahyu Srigutomo, Enjang Jaenal Mustopa

[ABS-113] Landslide Investigation and Back Analysis of Slide Plane Using Integrated Multidisciplinary Approach

43

Matheus Souisa1*), Lilik Hendrajaya2, Gunawan Handayani3

[ABS-129] Responses of Ionosphere Above Pontianak And Tanjung Sari to The CME Event. (Study Case of CME Event on November 7th, 2013)

44

Newton Jefons (a*), Dhani Herdiwijaya (a), Jiyo (b)

[ABS-130] Relation of crustal and upper mantle deformation beneath Sunda-Banda Island Arc inferred from shear-wave splitting analysis

45

Syuhada Syuhada, Nanang T. Puspito,Titi Anggono, Nugroho D. Hananto, Hendra Grandis and Tedi Yudistira

[ABS-136] Geochemical Characteristics of Volcanic Rocks from The Mt.Masurai"s Caldera, Jambi, Indonesia

46

1) Asep Rohiman*, 1)Dipowiguno Prijanto, 1)Arief Prabowo, 1)Antonius Ratdomopurbo, 1)Ruly Setiawan, 1)Mutiara Effendi, and 2)Eko Wahyudi

[ABS-139] Optimalization of ultrasonic tomography method using robotic instrument

47

Fatkhan, Tedy Setiawan, Fernando Lawrens

[ABS-140] Identification of Structural Trap of Hydrocarbon Reservoir below The Layers of Volcanic Rocks using Audio-Magnetotelluric Method in Majalengka Region

48

Muhammad Thowwafi Alfiansyah (a), Supriyanto (a)

[ABS-142] Distribution of Magnetic Susceptibility of Natural Iron Sand in Sarmi Coast Area

49

Octolia Togibasa 1), Muhammad Akbar 1), Aditya Pratama 2), Satria Bijaksana 2)

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29-31 August 2017

[ABS-143] Vulcanism and Anomaly of geothermal heat flow in northern of East Java island

50

Bagus Endar B. Nurhandoko1, Rizal Kurniadi1, M. Rizka Asmara Hadi2, Rio Martha2, Sri Widowati3

[ABS-148] Magnetic Characterization of Industrial Dust from Gresik, East Java, Indonesia

51

Titis Lestyowati, Silvia Jannatul Fajar, Satria Bijaksana

[ABS-149] Magnetic characterization of pyroclastic density current (PDC) of the AD 1257 eruption of Mt. Samalas, Lombok, Indonesia: preliminary results

52

Arif Wijaya, Silvia Jannatul Fajar, Satria Bijaksana

[ABS-150] A comparative Study of Simulated Annealing and Genetic Algorithm method in Bayesian framework to the Gravity data inversion

53

adam sukma putra, Sukono, Wahyu Srigutomo

[ABS-152] The Physical Mechanisms of Geothermal Reservoir During Hydraulic Injection Through Microearthquake Tomography

54

Kana A. Natania(a),David P. Sahara(b), Andri D. Nugraha(b) , Irvan Ramadhan(c)

[ABS-153] Magnetic characterization and heavy metals pollutions of sediments in Citarum River, Indonesia

55

Sudarningsih, Hana Aliyah, Silvia Jannatul Fajar, Satria Bijaksana

[ABS-154] Investigation of Mesoscale Convective Systems over Indonesian Maritime Continent using Geostationary Meteorological Satellite

56

Y Norman(1,2*), NJ Trilaksono(3,4)

[ABS-155] The Recent Small Earthquakes around Lembang Fault, West Java, Bandung, Indonesia

57

A D Nugraha1, P Supendi2, B S Prabowo3, S Rosalia3, Erlangga3, Y M Husni3, S Widiyantoro1, N T Puspito1, A Priyono1

[ABS-157] Testing the Effectiveness of Mechanical Magnetic Extraction in Riverine and Lacustrine Sediments

58

Gesti Cita Novala, Sudarningsih, Kartika Hajar Kirana, Silvia Jannatul Fajar, Mariyanto, Satria Bijaksana

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[ABS-159] Site Classification in Surakarta City Based on Vs30 of Multichannel Analysis of Surface Wave Method

59

Muhammad Fachrul Rozi Kurniawan, Sorja Koesuma, Budi Legowo

[ABS-160] Space-Time Spectral Analysis of 2-D Signal on the Globe Using Spherical Harmonics and Wavelet Transform Methods

60

Sefri Ayuliana, Faiz R. Fajary, Tri W. Hadi

[ABS-161] Modeling the behavior of CO2 injection in a sand reservoir 61

Cahli Suhendi*, David P.Sahara**, Fatkhan***, Mohammad Rachmat Sule***

[ABS-162] 3D Vp, Vs, And Vp/Vs Microseismic Tomography Imaging On "MA" Geothermal Field: Fluid Saturation Condition Estimation

62

Donny Satrio Mahartha (a*), Andri Dian Nugraha (b), Mohammad Rachmat Sule (c)

[ABS-163] The pattern of local stress heterogeneities along the central part of the Great Sumatran fault

63

David P. Sahara, Sri Widiyantoro

[ABS-164] Stress drop, earthquake aftershocks and regional stress relation base on static Coulomb failure stress

64

D Kusumawati1*, A D Nugraha2, David P Sahara2 and N T Puspito2

[ABS-166] Utilization of Double-Difference Tomography for Geothermal Exploration: 3D Velocity Structure Interpretation and Fluid Type Determination

65

Arifa Hijriani (a*), David P. Sahara (b), Andri D. Nugraha (b), Irvan Ramadhan (c), Ridwan P. Sidik (c)

[ABS-167] 3D SEISMIC TOMOGRAPHY TO IMAGE THE SUBSURFACE STRUCTURE OF IY GEOTHERMAL FIELD USING DOUBLE DIFFERENCE METHOD AND WAVEFORM CROSS-CORRELATION: PRELIMINARY RESULTS

66

Indriani Yunitasari1, Andri Dian Nugraha2, Mohammad Rachmat Sule3

[ABS-168] Seismic Tomography under Mt. Sinabung Using Waveform Cross-Correlation Arrival Time Data from October 2010 - December 2011: Preliminary Results

67

Zakaria S. Laksmana (a*), Andri Dian Nugraha(b), Sri Hidayati (c)

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[ABS-169] 3D Seismic Velocity around Source Region of Mw 6.5, 2016 Pidie Jaya Earthquake from Double Difference Tomography and Waveform Cross Correlation: Preliminary Results

68

1Rianty Kusuma Dewi, 1Andri Dian Nugraha, 2Rexha Verdhora Ry

[ABS-170] Implementation of GMSTech - a New Practical Software for Microseismic Data Processing - for Estimating Event Source Parameters

69

Rexha V Ry (1*), D P Sahara (1), M Rohaman (2), C Suhendi (2), K H Palgunadi (2), S Widiyantoro (1), A D Nugraha (1), T Yudistira (1), B S Prabowo (2), B Mujihardi (3)

[ABS-173] Progresses on Magnetorotational Instability 70

Himawan Winarto

[ABS-176] Western Java Ambient Noise Tomography: Preliminary Result

71

Shindy Rosalia(a*), Tedi Yudistira (b), Sri Widiyantoro (b), Phil R. Cummins (c), Andri D. Nugraha (b)

[ABS-177] Investigation on 3D fractal dimension as complexity parameter of fluid flow in 3D porous media

72

Ulpa Zein Fawziah (a), Aceng Kurnia Rochmatulloh (a), Selly Feranie (a), Fourier Dzar Eljabbar Latief (b), Prana F L Tobing (a)

[ABS-180] Improved Hypocenter Data Catalog around Indonesia Region by using teletomoDD and 3D Seismic Velocity Model: Preliminary Results

73

Y H Sinaga(a), S. Rosalia(a), A D Nugraha(b), S Widiyantoro(b), Daryono(c), S Wiyono(c)

[ABS-187] Design Of Microtremor Monitoring Tools Using Accelerometer Sensor On Android Mobile To Determine The Natural Building Frequency In Library Unit (UPT Perpustakaan) UNS

74

Rio Riantana, Darsono, Agus Triyono

[ABS-190] Modeling fluid propagation in a naturally fractured formation

75

Fatkhan***, David P.Sahara**, Cahli Suhendi*, Mohammad Rachmat Sule***

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[ABS-194] The Effect of Earthquake to Stability and Run Out Distance of Landslide During Rainfall : a case study of landslide prone area in West Java, Indonesia

76

Cucu Rizkianti (*a), Selly Feranie (b), Adrin Tohari (c)

[ABS-206] Structure and Oxidation Resistance of Flame Sprayed Fe-Ni-Al coating

77

AdlShahida Ismail Datu-Maki1, Ciswandi2, Bambang Hermanto2, Sitti Ahmiatri Saptari1, Toto Sudiro2

INSTRUMENTATION AND MEASUREMENT

[ABS-7] Zener diode vs rectifier diode: The comparation of Gaussian probability distribution charts from full-wave rectifier circuits

78

Haris Rosdianto

[ABS-26] An Ultrasonic Sensor System for Vehicle Detection Application

79

Roni Stiawan, Adhi Kusumadjati, Nina Siti Aminah, Mitra Djamal, Sparisoma Viridi

[ABS-102] Thermal Effect of Electromagnetic Suspension (EMS) Performance for Maglev Conveyor Prototype Levitation System

80

Deny Viviantoro, Aliq Zuhdi, Ign Agus Purbadi W

[ABS-133] EXPERIMENTAL OF SANDING PHENOMENA WHILE FLUID PRODUCTION USING THICK WALLED CYLINDER LABORATORY TESTING: CASE OF REAL INDONESIA ROCK SAMPLE

81

Bagus Endar B. Nurhandoko1, Mahatman Listyobudi2, Susilowati2

[ABS-135] Surface studies on hydrophobic polyethylene-silica nanocomposite coating system

82

iqroatul hasanah

[ABS-174] Development of Brewsters Angle measurement using Microcontroller units

83

Ahmad Marzuki, Lintang Bongkar Girana, Mahmudah Salwa Gianti

[ABS-202] Fiber Grating Method in Fiber Optic Sensor as a Prototype of Mapping Sensor by Load Analysis

84

Mahmudah Salwa Gianti, Hery Purwanto, Ahmad Marzuki

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[ABS-209] Development of Simple Nozzle-Type Rainfall Simulator for Landslide Simulation

85

Elfi Yuliza1,2, Iful Amir1,2, Muhammad Miftahul Munir1,2,a , Mikrajuddin Abdullah1 and Khairurrijal Khairurrijal1,2,b

INTERDISCIPLINARY PHYSICS

[ABS-21] Influence of Addition Ba-Ferrite on the Hardness, Magnetic Properties and Coorosion Resistance of Hybrid Bonded Magnet NdFeB

86

Ramlan1), Muljadi2),a), Prijo Sardjono2), Fakhili Gulo3), Dedi Setiabudidaya1

[ABS-22] Influence of Variation of Electrical Current Welding of ASTM Steel A 36 on Micro Structure and Mechanical Properties

87

Djuhana1),a) , Mulyadi1),a)

[ABS-25] Synthesis and Characterization of Ba-Ferrite with Variation of Nd2O3 additive by Powder Metallurgy Method

88

Suprapedi1), Muljadi1),a), Priyo Sardjono1

[ABS-56] Effect of Potential on Corrosion Behavior of Tartaric-sulphuric Acid Anodized 7075 T6 Aluminium Alloys

89

M I Tawakkal1,a), Akhmad A. Korda1,b)

[ABS-57] Characterization of Tartaric-Sulphuric Acid Anodized 2024-T3 Aluminium Alloys with Anodizing Potential Variation

90

M H Setianto1,a), Akhmad A. Korda1,b)

[ABS-59] A New Physics Models for Wind Resistance of Coconut Tree 91

Rahmawati Munir, Handika Dany Rahmayanti, Nadya Amalia, Sparisoma Viridi, and Mikrajuddin Abdullah

[ABS-65] The effect of lithium nitrate towards electrochemical properties of Carboxymethyl Chitosan

92

N. N. Mobarak, A. Ahmad, M. P. Abdullah

[ABS-75] Antibacterial investigation activity of technical grade Titania anatase

93

Desyana Olenka Margaretta(1),Kingkin W.Permadi (1), Sparisoma Viridi(1) Mikrajuddin Abdullah(1,a)

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[ABS-81] The Effect of Hydrophylic Coating on Concrete Pile Surface in Pile Driving: Real Field Test

94

Nadya Amalia, Elfi Yuliza, Mamat Rokhmat, Edy Wibowo, Sparisoma Viridi, and Mikrajuddin Abdullah

[ABS-116] The Influence of Oil Price Fluctuations on Indonesian Stock Prices Through Wavelet Coherence

95

Qoniti Amalia, Acep Purqon

[ABS-127] Effect of solution molarity and post-annealing on optical band gap of Al doped ZnO thin films

96

A.R.A. Rashid, T.N.H.T. Mazlam, N.S. Othman, K.A. Dasuki

[ABS-156] Highly Easy and low cost Fabrication of Gaphite-based Flexible Transparent Conducting Film

97

Dui Yanto Rahmana, Sutisna, Fisca Dian Utami, Euis Sustini and Mikrajuddin Abdullah

[ABS-158] Photocatalys Based TiO2 and Its Application in Organic Wastewater Treatment Using Spray Method

98

Fisca Dian Utami, Sutisna, Dui Yanto Rahman, Mikrajuddin Abdullah

[ABS-165] A Facile Microwave-Assisted Synthesis of Carbon Dots and Their Application as Sensitizers in Nanocrystalline TiO2 Solar Cells

99

Ilham Alkian, Adi Prasetio, Ledi Anggara, Karnaji , Rizka Zakiyatul Miskiyah, Fonisyah Marspianko Habibah, Hendri Widiyandari

[ABS-172] The Effect of Ozone Dielectric Barrier Discharge (DBD) Towards Reduction of Microorganism in Eggs

100

Siti Mudrikah, Nita Melinda, Norma Faizatun Nikmah, Ilham Alkian, Siti Magfiroh, Zaenul Muhlisin

[ABS-175] SOCIALIZATION OF LANDSLIDE HAZARDS AT KAIRO HILL - INFRASTRUCTURE TOURISM IN TANA TORAJA

101

L. Pasasa1, a), L. Hendrajaya1, I. Permanasari1, and D.Pandara2)

[ABS-188] Investigation of Conceptual Understanding of Pre-Service Science Teachers in Integrated Science Subject

102

Nanang Winarno, Ari Widodo, Dadi Rusdiana, Diana Rochintaniawati, Ratih Mega Ayu Afifah

Book of Abstracts

29-31 August 2017

NUCLEAR SCIENCE AND ENGINEERING

[ABS-9] Measurement and analysis of U-233 from Local Thorium Irradiated at Kartini Reactor by Using Gamma Spectrometry and DNC Methods

103

Syarip, Susilo Widodo, Muzakky, Sukirno

[ABS-30] Influence of GA Siwabessy Reactor Iradiation Period on The Production of Molybdenum-99 (99Mo) by Neutron Activation to Produce Technetium-99m (99mTc)

104

M Munir, Herlina, Sriyono, E Sarmini, Abidin and Marlina

[ABS-76] Calculating the Binding Energy of the Lithium Nucleus with the Yukawa Potential and the Hellmann Potential using WKB Approximation

105

Ahmad Suaif (a*), Dina Rahmawati (b)

[ABS-111] RADIATION SHIELDING DESIGN OF NEUTRON SOURCE OF "SAMOP" RADIOISOTOPE PRODUCTION TEST FACILITY

106

Tegas Sutondo, Syarip

[ABS-184] Performance of Thorium Uranium Nitride (Th,U233)N Fuel for 500 MWth GFR Long-Life Without Refueling use FI-ITB-CHI code

107

Ratna Dewi Syarifah, Zaki Su?ud, Khairul Basar and Dwi Irwanto

[ABS-200] Experiments on natural convection as a coolant system mechanism on nuclear reactors

108

Habibi Abdillah, Novitrian

[ABS-205] High Temperature Oxidation of Fe-Cr-Al Coating Prepared by a Flame Spray Technique

109

Atthur El Fath1, Irmaniar2, Didik Aryanto2, Sitti Ahmiatri Saptari1, Toto Sudiro2*

[ABS-207] Preliminary Development of Coupled Neutronic - Thermalhydraulic Computer Code for Multipass Fuel Loading Scheme of Pebble Bed Reactor

110

Dwi Irwanto, Sidik Permana, Syeilendra Pramuditya, Asril Pramutadi

[ABS-208] Development of Accident analysis of Gas Cooled Fast Reactors and its application in Cluster Computer

111

Book of Abstracts

29-31 August 2017

Zaki Su?ud1, Fitria Miftasani1, Menik Ariani2, Dwi Irwanto1

[ABS-213] Neutronics Analysis of AP1000 Nuclear Reactor with ThO2-UO2 Fuel

112

Raka F. Baskara1,a, Abdul Waris2*, Rizal Kurniadi2, Khairul Basar2, Widayani2

[ABS-214] Plutonium Recycling in Advanced Nuclear Reactor AP1000 with Thorium Fuel

113

Abdul Waris1*, Raka F. Baskara2,a , Dwi Irwanto1, Nur Asiah A1, Novitrian1

[ABS-215] Plutonium and Minor Actinides Utilization in FUJI-U1 Molten Salt Reactor

114

Cici Wulandari1, Abdul Waris2*, Sidik Permana2, and Syeilendra Pramuditya2

[ABS-216] Simulation of lower plenum material interaction between molten uranium and control rod guide tube (CRGT) of a BWR during severe accident by using MPS method

115

(a) Asril Pramutadi Andi Mustari, (a) Dwi Irwanto

[ABS-217] Comparative Analysis on Fuel Breeding for Less Moderation Ratio of Water-Cooled Reactor

116

Sidik Permana *, Asril Pramutadi, Syeilendra Pramuditya, Dwi Irwanto

[ABS-218] Actinide and Plutonium Composition Analysis on Water-Cooled Reactor

117

Sidik Permana *, Asril Pramutadi, Syeilendra Pramuditya, Dwi Irwanto

PHYSICS EDUCATION

[ABS-2] OSW-CTST: A Developing Study of Oscillation and Sound Wave-Critical Thinking Skills Test

118

Syarif Rokhmat Hidayat (a*), Ida Kaniawati (a), Endi Suhendi (a), Parsaoran Siahaan (a), Didi Teguh Chandra (a), Achmad Samsudin (a)

[ABS-10] MITIGATION OF MOUNT MERAPI BASED BY ETHNOSCIENCE 119

Cherly Salawane (a*), Putut Marwoto (b), Supriyadi (b), Sudarmin (b), Ani Rusilowati (b)

Book of Abstracts

29-31 August 2017

[ABS-34] Overcoming Senior High School Students Misconceptions on Newtons Laws: A Dual-Situated Learning Model (DSLM) with Inquiry Learning

120

Nuzulira Janeusse Fratiwi, Ida Kaniawati, Endi Suhendi, Iyon Suyana, Achmad Samsudin

[ABS-36] The Relationship between Students Interest in Bilingual Science Learning and Students English Competence

121

Regina Lichteria Panjaitan and Riana Irawati

[ABS-38] The Effect of Higher Order Thinking Virtual Laboratory (HOTVL) in Electric Circuit on Students Creative Thinking Skills

122

Sapriadil, Agus Setiawan, Andi Suhandi

[ABS-40] Reducing Eleventh-Grade Students Misconception on Gravity Conceptions using PDEODE*E-Based Conceptual Change Model

123

Aldi Zulfikar1, Duden Saepuzaman1, Neni Hermita2, Achmad Samsudin1

[ABS-41] OPTIMIZING STUDENTS CONCEPTUAL UNDERSTANDING ON ELECTRICITY AND MAGNETISM THROUGH COGNITIVE CONFLICT-BASED MULTIMODE TEACHING (CC-BMT)

124

Achmad Samsudin1, Andi Suhandi1, Ida Kaniawati1, Dadi Rusdiana1, Aldi Zulfikar1, Muhamad Himni Muhaemin1, Neni Hermita2, Firmanul Catur Wibowo3

[ABS-42] A Development of Science Writing Heuristic-based Worksheets to Improve Students Cognitive on Temperature and Heat

125

Muhamad Himni Muhaemin1, Aldi Zulfikar1, Neni Hermita2, Parlindungan Sinaga1, Muslim1, Achmad Samsudin1

[ABS-47] Unpacking Pre-service Physics TeachersUnderstanding of the P-V-T Diagram and The Associated Mathematics

126

Duden Saepuzaman1*) , Syakti P. Sriyansyah 2), Saeful Karim 1)

[ABS-48] Implementation of HOT Lab to Improve Students 127

S.A Lisdiani (a*) , A Setiawan (b) , A Suhandi (c)

Book of Abstracts

29-31 August 2017

[ABS-50] Enhancing Students Critical Thinking Skills through Multimedia Based Integrated Instruction (MBI2) on Solar System Concept

128

Satria Seto Bhakti (a*), Parsaoran Siahaan (a), Didi Teguh Chandra (a), Endi Suhendi (a), Ida Kaniawati (a), Achmad Samsudin (a)

[ABS-51] Diagnosing High School Students Conceptions on Dynamics-Fluid

129

Fitri Nurul Sholihat, Muhamad Gina Nugraha, Achmad Samsudin

[ABS-53] The Effects of Higher Order Thinking (HOT) Laboratory Design in Elasticity on Students Creative Thinking Skills

130

D Safitri (1*), A Setiawan (2) , and A Suhandi (3)

[ABS-61] Excavating the Quality of Vocational Students` Mental Models and Prediction on Heat Conduction

131

Ika Mustika Sari, Dessy Fauzi, Duden Saepuzaman, Dadi Rusdiana

[ABS-64] Promoting Conceptual Change in Pre-service Elementary School Teachers Understanding on Interactions of Neutral and Charged Objects Concept by Using MMVSCCText

132

Neni Hermita1,2, Andi Suhandi2,4, Ernawulan Syaodih2,3, Achmad Samsudin4, Aldi Zulfikar4,Muhamad Himni Muhaemin4,Isjoni5 and Fitria Rosa6

[ABS-66] Enhancing Junior High School Students Conceptual Understanding using The POE-based Demonstration Technique on Static Electricity

133

Muhammad Guntur Purwanto1*, Asep Sutiadi1, Neni Hermita2, Achmad Samsudin1

[ABS-68] Promoting Oral-Communication Skill of Seventh Grade Student on Earth Science Content Using Multimedia Based Integrated Instruction (MBI2)

134

Anggi Hanif Setyadin (a*), Parsaoran Siahaan (b), Achmad Samsudin (c), Endi Suhendi (d), Ida Kaniwati (e)

[ABS-71] CONSTRUCTING ESSAY QUESTIONS TO ASSESS SCIENTIFIC CREATIVE AND CRITICAL THINKING SIMULTANEOUSLY RELATED TO COLLISION PROBLEM BASED ON STUDENTS RESPONSES

135

Iyon Suyana1), Sarah Nadaipah1), Parlindungan Sinaga1), Selly Feranie1)

Book of Abstracts

29-31 August 2017

[ABS-72] ANALYZING STUDENT RESPONSES TO CONSTRUCT OPEN ENDED QUESTION TO ASSESS SCIENTIFIC CREATIVE AND CRITICAL THINKING (SCCT-TEST) RELATED TO HYDROSTATIC PRESSURE

136

Heni Rusnayati1),Nur Oktavianti1),Hera Novia1),Duden Saepuzaman1),Selly Feranie1)

[ABS-82] Engaging Students in STEM Based Learning Through Media and Technology

137

Irma Rahma Suwarma, Ida Kaniawati, Dewi K

[ABS-89] Identifying Pre-Service Physics Teacher Mental Model on Electric Conceptions

138

Supriyatman(a*), Andi Suhandi (b), dan Dadi Rusdiana (b), Achmad Samsudin (b), Firmanul C. Wibowo (c)

[ABS-91] Developing Science Teaching Materials on The Topic of Stars 139

Nadia Nur Imania, Dadi Rusdiana, Momo Rosbiono

[ABS-104] Development of Integrated Science Teaching Material with Webbed Model on Global Warming Theme for Junior High School Student of Class VII

140

Yuliana Sari (a*), Harry Firman (b)

[ABS-107] The Development of HOT Lab Construction About Heat Transfer

141

Adam Malik1,2a), Agus Setiawan3, Andi Suhandi4, Anna Permanasari5, Achmad Samsudin4, Yudi Dirgantara2, Herni Yuniarti2

[ABS-123] PREDICT, PLAN, OBSERVE, EXPLAIN AND WRITE (PPOEW): A STRATEGY TO PREVENT STUDENTS? MISCONCEPTIONS ON WORK AND ENERGY TOPICS

142

Dedah Siti Jubaedah, Nuzulira Janeusse Fratiwi, Ida Kaniawati, Iyon Suyana, Achmad Samsudin and Endi Suhendi

[ABS-124] Simulated Analysis of Image Formation for Concave Mirror with Scilab by Using The Concept of Calculus

143

Erwin Randjawali (a*) and Robi D. Riupassa (b)

[ABS-141] Diagnosis of Student?s Misconception in Momentum and Impulse after Inquiry with Computer Simulation (ICS) Learning

144

Book of Abstracts

29-31 August 2017

Shita Ayu Amalia, Nuzulira Janeusse Fratiwi, Achmad Samsudin, Ida Kaniawati, Endi Suhendi*

[ABS-151] Realization of Null-type Bridge instrument to determine water level to anticipate flood using Enquiry-Based Learning

145

Mohamad Reza Nurrahman (1), Andi Gumarilang Cakti (1), Kevin Misrano (1), Elfi Yuliza (1), Khairurrijal Khairurrijal (1,2*)

[ABS-178] Making Humidity Meter Based on Null-type D.C. Bridge: A Project-Based Learning

146

Azka Zakiyyatuddin(1*), Nona Avena Purba(1), Hadyan Luthfan(1), Elfi Yuliza(1), Khairurrijal(1,2)

[ABS-179] Digital Intensity Meter Based on Deflection-type D.C. Bridge Realized Using Project Based Learning Approach

147

Muhammad Iqbal Rahmadhan Putra (a), Muhammad Reza Ramadhani Raharja (a), Enggar Lokshewara Renanda (a), Elfi Yuliza (a), and Khairurrijal Khairurrijal (a,b*)

[ABS-185] Challenge-based Learning Model with Reading Infusion Strategy in Physics instruction : Study of Literature

148

Ririn Utami, Ida Kaniawati, Irma Rahma Suwarma

[ABS-189] Shifting from Physics Teacher to Basic-Science Teacher: Adequate or Not? (a self-study)

149

Regina Lichteria Panjaitan

[ABS-210] Making Counter Clockwise Analog Thermometer Under Project-Based Learning Method

150

Natasha Flaminggo1, Rafi Candra1, Anisa Natalia1, Elfi Yuliza1, Khairurrijal Khairurrijal1,2,a)

THEORETICAL HIGH ENERGY PHYSICS

[ABS-13] Cosmological inflation with minimal and non-minimal coupling of scalar field from Horndeski theory

151

Getbogi Hikmawan (1), Agus Suroso (1,2), Freddy P. Zen (1,2)

[ABS-15] Low Amplitude Kink Soliton Excitation in Peyrard-Bishop-Dauxois Double Strand DNA Model

152

Donny Dwiputra(a*), Wahyu Hidayat(a,b), Freddy Permana Zen(a,b)

Book of Abstracts

29-31 August 2017

[ABS-16] Killing Vectors of Extremal Kerr Black Holes 153

M. F. A. R. Sakti*, A. Suroso, and F. P. Zen

[ABS-17] Dynamical System of Kaluza-Klein Brane Cosmology with Gauss-Bonnet Term in a Bulk

154

Irsan rahman (a*), Bansawang B.J (b), Agus Suroso (a,c), Tasrief Surungan (b), Freddy P. Zen (a,c)

[ABS-18] The Damping Effect on Energy Transfer in Alpha-helical Proteins with the Interspine Interaction

155

Imam A Ramadhan (a*), Susan F Rohmah (a), Siti Latifah (a), Donny Dwiputra (a), Wahyu Hidayat (a),(b), and Freddy P Zen (a),(b)

[ABS-19] Time-Dependent Damping Effect for the Dynamics of DNA Transcription

156

Susan F. Rohmah (1), Imam A. Ramadhan (1), Siti Latifah (1), Donny Dwiputra (1), Wahyu Hidayat (1,2), Freddy P. Zen (1,2)

[ABS-23] The Effect of Solvent Viscosity Change on the Nonlinear Dynamics of U-Model Microtubules

157

Siti Latifah1, Susan F Rohmah, Imam A Ramadhan, Donny Dwiputra1, Wahyu Hidayat1,2, and Freddy P Zen1,2

[ABS-29] Fast-forward of entanglement dynamics 158

Iwan Setiawan, Bobby Eka Gunara, Katsuhiro Nakamura

[ABS-44] Phenomenology of Minimal Composite Double Higgs Model 159

Bayu Adi Nugraha Putra*, Jusak Sali Kosasih

[ABS-63] The Field Localization of Yukawa Interaction in a Modified Randall-Sundrum Model

160

Dewi Wulandari 1,2), Triyanta 2), Jusak S. Kosasih 2), Douglas Singleton 3)

[ABS-119] Modified Geroch Mass of Two-Surfaces Embedded in Three-Manifolds

161

F.C. Radjabaycolle(a,b*), F.T. Akbar(a), and B.E. Gunara(a)

[ABS-131] Stability Condition on 4-Dimensional Upper-Half Plane Metric

162

Rio N. Wijaya (a*), Fiki T. Akbar (a), Bobby E. Gunara (a,b)

Book of Abstracts

29-31 August 2017

[ABS-134] Maxwell-Klein-Gordon system with nontrivial coupling on four dimensional Minkowski spacetime

163

Fiki Taufik Akbar, Bobby Eka Gunara

[ABS-137] Kerr-de Sitter metrics in higher dimensions 164

Ramadhiansyah, Bobby Eka Gunara

[ABS-171] Local existence of scalar wave equation on deSitter universe as a background

165

Muhammad Iqbal, Fiki Taufik Akbar, Bobby Eka Gunara

[ABS-183] Field Localization for the 5-Dimensional Nonminimal Derivative Coupling of Scalar Field with Modified Randall-Sundrum Model

166

Muhammad Rizka Taufani, Agus Suroso, Freddy Permana Zen

[ABS-197] Neutral Pion Photoproduction on the Proton in the Effective Lagrangian Approach

167

Siti Ani Apriyani(a*), Agus Salam(a*), Imam Fachruddin(b), Zulhaji(b)

[ABS-198] Canonical Quantization of Geometrized Classical Mechanics 168

David Senjaya, Jusak Sali Kosasih

[ABS-219] The effect of external potential to thermodynamical properties of a Longitudinal microtubules

169

W. Hidayat 1a,d, A. Sulaiman 2b,d, S. Viridi3c,d, F.P. Zen 4a,d

Book of Abstracts

1 29-31 August 2017

[ABS-3]

A size-specific effective dose for patients undergoing CT examinations

Choirul Anam (a*), Freddy Haryanto (b), Rena Widita (b), Idam Arif (b), Toshioh

Fujibuchi (c), Geoff Dougherty (d)

(a) Department of Physics, Faculty of Mathematics and Natural Sciences, Diponegoro

University, Semarang, Indonesia; and Department of Physics, Faculty of Mathematics

and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia.

*anam@fisika.undip.ac.id

(b) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut

Teknologi Bandung, Bandung, Indonesia.

(c) Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, 3-1-

1 Maidashi, Higashi-ku, Fukuoka, Japan.

(d) Applied Physics and Medical Imaging, California State University Channel Islands,

California, USA.

Abstract

This study aims to develop a simple method for estimating the size-specific effective dose

using the ImPACT software. The size-specific effective dose was calculated from the

images of patients who underwent CT examinations of the thorax and abdomen regions.

CTDIvol and mAs data were obtained from the dose report. The average of mAs and

CTDIvol were used to determine the normalized CTDIvol (nCTDIvol). Patient size was

expressed in effective diameter (Deff), and was measured at nine slices along the z-axis.

The normalized size-specific dose estimate (nSSDE) was then calculated. The normalized

size-specific effective dose was obtained in the “effective dose― text-box by inputting

an arbitrary value in the “CTDI (air)― text-box so that the “CTDIvol―text-box

showed a similar value to the nSSDE. The results show that the normalized size-specific

effective dose decreases exponentially with increasing patient size. The results are

consistent with results of Sahbaee formula to within 20%.

Keywords: size-specific effective dose; size-specific dose estimate; effective diameter;

ImPACT

Topic: Biophysics and Medical Physics

Book of Abstracts

2 29-31 August 2017

[ABS-27]

Fluence Profiles and Energy Spectral Distributions of 100, 110, And 125 kVp Photon

Beams: Results of Monte Carlo Simulations for A Varian OBI 1.4 CBCT

Hendra Setiawan (a*), Rena Widita (a)

a) Department of Physics, Institut Teknologi Bandung

Jalan Ganesha 10, Bandung, 40132, Indonesia

*hendrasetiawan@s.itb.ac.id

Abstract

Cone Beam Computed Tomography (CBCT) imaging for daily patient localization has

gained enormous popularity as one of Image-Guided Radiation Therapy (IGRT) methods

in recent years. This was largerly due to the need of higher precision and accuracy in

conformal beam delivery technique which is known as Intensity Modulated Radiation

Therapy (IMRT). The success of this IMRT method is mainly determined by the treatment

planning systems. The aim of this research is to provide detailed characteristics of incident

photon beams for different beam energies from a Varian OBI 1.4 CBCT. The detailed

characteristics consists of fluence profiles and energy spectral distributions. This

information is critical to the future development of accurate treatment planning systems.

BEAMnrc as one of EGSnrc Monte Carlo user code, has been used to simulate 100, 110,

and 125 kVp photon beams from x-ray tube of a Varian OBI 1.4 CBCT. The details of each

particles complete history including where it has been and where it has interacted is stored

in a phase space data file. The phase space files are analyzed to obtain fluence profiles and

energy spectra distributions.

Keywords: CBCT, EGSnrc, Energy Spectral, Fluence, and Monte Carlo

Topic: Biophysics and Medical Physics

Book of Abstracts

3 29-31 August 2017

[ABS-31]

The impact of head miscentering on the eye lens dose in CT scanning: Phantoms

study

Choirul Anam (a*), Toshioh Fujibuchi (b), Takatoshi Toyoda (b), Naoki Sato (b), Freddy

Haryanto (c), Rena Widita (c), Idam Arif (c), and Geoff Dougherty(d)

(a) Department of Physics, Faculty of Mathematics and Natural Sciences, Diponegoro

University, Indonesia; and Department of Physics, Faculty of Mathematics and Natural

Sciences, Bandung Institute of Technology, Indonesia.

(b) Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, 3-1-

1 Maidashi, Higashi-ku, Fukuoka, Japan.

(c) Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung

Institute of Technology, Indonesia.

(d) Applied Physics and Medical Imaging, California State University Channel Islands,

California, USA.

Abstract

The aim of this study was to evaluate the eye lens dose due to miscentering, either above

or under the isocenter, and to assess the possibility of eye lens dose reduction by using

miscentering phenomenon. We used two types of phantoms (head CTDI and adult

anthropomorphic phantoms) and two types of detectors (pencil ionization chamber and

radiophotoluminescence detectors). Measurements using the head CTDI phantom and

pencil ionization chamber were performed at the upper peripheral hole of the CTDI

phantom, whereas measurements using RPL detectors were performed on the surface of the

eyes of the anthropomorphic phantom. Each measurement was performed with position

phantoms at the isocenter and also at the positions

Keywords: CT scan, miscentering, eye lens dose, dose reduction, anthropomorphic

phantom, radiophotoluminescence (RPL) detector

Topic: Biophysics and Medical Physics

Book of Abstracts

4 29-31 August 2017

[ABS-45]

Characterization of Calcium Powders from Merauke Mangrove Crab Shells

Khaeriah Dahlan, Endang Haryati, Octolia Togibasa, Kiagus Dahlan

Cenderawasih University, Bogor Agricultural Institute

Abstract

Integrated research in the field of biomaterials over bioceramic synthesis into subtitutive

material of composite bone, especially on unique materials from Papua, was being

developed. In this study we report the successful fabrication of calcium powders by

utilizing mangrove crab shells originating from Merauke as a natural source of calcium.

Three variations of temperature, 1073 K, 1173 K and 1273 K, were used in the calcinations

process. Synthesized Calcium powders were characterized using x-ray diffraction (XRD),

scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy,

to determine its potential as a bone subtitute composite. The results were compared with

commercials calcium carbonate powder. The adopted methods were cost effective and

ecofriendly, since Merauke mangrove crab shells were considered a waste for every

household, abundant and easy to obtained. In addition, the Merauke mangrove crab shells

contained zero harmful compounds due to the natural ecosystems that are less polluted from

urban and industrial activities.

Keywords: Calcium powders, Merauke mangrove crab shells

Topic: Biophysics and Medical Physics

Book of Abstracts

5 29-31 August 2017

[ABS-46]

PROTEIN AND MINERALS ANALYSES OF MANGROVE CRAB SHELLS AS

FOUNDATION ON BIOCERAMIC COMPONENTS FROM MERAUKE

Endang Haryati*1), Khaeriah Dahlan1), Octolia Togibasa1), Kiagus Dahlan2)

1)Department of physics, Cenderawasih University

2)Department of physics, Bogor Agricultural Institute

*) corresponding author: endanghfis@gmail.com

Abstract

The analyses over protein and minerals of the mangrove crab shell from Merauke have

been studied. Shells of the mangrove crab that have been cleansed and dried under the sun

for 24 hours, were mashed and then divide into two parts. The first section was used for the

analysis of protein, phosphor calcium, magnesium and aluminium contents, while the

second part was previously calcined at temperatures of 1273 K for 5 hours before analyzed.

The results showed that the mangrove crab shells originating from Merauke contained

9.57% w/w of protein, 3861.83 mg/kg of phosphorus, 29.04% w/w calcium, 1.99% w/w

magnesium and 107.00 mg/kg aluminium. After the process of calcination, the calcium

content in shell powder of crab has increased. It can be concluded that shell of the mangrove

crab from Merauke, posses basic materials as bioceramic.

Keywords: protein, minerals, Merauke mangrove crab shells

Topic: Biophysics and Medical Physics

Book of Abstracts

6 29-31 August 2017

[ABS-52]

Characterization of Bio-battery from Tropical Almond Paste

Octolia Togibasa, Endang Haryati, Khaeriah Dahlan, Yane Ansanay, Tresiani Siregar,

Mersi Natalia Liling

Department of Physics, Cenderawasih University, Jayapura, 99358, Indonesia

Abstract

The rapidly growing demand of energy together with diminishing of fossil-fuel resources

has led an energy crisis problem in all over the world. The invention of bio-batteries has

contributed in the pursuit of both sustainable and renewable energy sources technologies.

A bio-battery generates electricity from renewable fuels such as human blood, fruit,

vegetables, and other bio-compounds, which providing a sustained and portable power

source. However, bio-compounds involving crops should be avoided to prevent food

shortages. Tropical almond (Terminalia catappa L.) popularly known as ketapang in

Indonesia, is considered as potential bio-compound for bio-battery since its non-crops and

grows abundantly in Indonesia. In this study we developed a prototype of bio-battery from

tropical almond (Terminalia catappa L.) paste. The characterization of these batteries gave

a peak power of 0.25 mW and a stable current up to 2 days. The presence of glucose in

electrolyte paste will also be discussed.

Keywords: bio-battery, tropical almond, electrolyte paste

Topic: Biophysics and Medical Physics

Book of Abstracts

7 29-31 August 2017

[ABS-58]

The Influence of Lea-Catcheside Time Factor in Fractionated Radiotherapy

Hasto Arief N (a*), Rena Widita Ph.D (a)

a) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut

Teknologi Bandung

Jalan Ganesha 10, Bandung 40132, Indonesia

*hastoarief@gmail.com

Abstract

The linear-quadratic (LQ) formulation is universally used for calculating the effects of

alterations in the dose per fraction and the fractionation scheme in radiotherapy regimen.

LQ is mechanistic biologically-model that includes some of the biological phenomenons

of the tissue responses caused by radiation. The phenomenons are repair, repopulation,

reoxygenation and redistribution. Reoxygenation and redistribution have the same response

due to radiation, therefore these two mechanism will be included into one mechanism called

resensitization. Repair and resensitization mechanism will have different value every

fractionation. To reckon those parameters, LQ has a parameter called Lea-Catcheside time

factor. Lea-Catcheside time factor is a parameter within LQ which calculates the effect of

the fractionation and protraction scheme. The objective of this research is to analyze the

effect of the change in fractionation scheme and dose per fraction from the obtained Lea-

Catcheside time factor parameter. The break-time between fraction and dose per fraction

will be changed periodically to obtain the Lea-Catcheside time factor as well as the survival

factor of the cell in the tumor and organ at risk around the tumor. The result shows that the

longer the break time between fraction or the smaller the given dose per fraction, the

survival fraction will have the same value as the survival fraction without the Lea-

Catcheside time factor, i.e the effect of the Lea-Catcheside time factor will be small and

can be neglected.

Keywords: dose, fractionation, linear-quadratic

Topic: Biophysics and Medical Physics

Book of Abstracts

8 29-31 August 2017

[ABS-120]

Study of Electroencephalogram pattern from Eye Response to Flickering Light

Meda C. Fitriani, Siti N. Khotimah, Freddy Haryanto, and Suprijadi

Institut Teknologi Bandung

Abstract

Electroencephalograph (EEG) has been widely used in brain wave mapping studies with

several subject conditions, such as in evaluations of dementia and encephalopathy,

screening for possible epileptic spikes, investigational for clinical use in mental disorders.

In addition, the EEG has also been used to investigate the response of human brain in

listening to music, movement of arm, and turning of neck. In this study,

electroencephalograph was used to study the eye response to the blinking light. Brain waves

recorded during the subject watching flickering light by using wireless

electroencephalograph 14 channels. By recording the brain waves of the subject in the

?Edf?s? format, the electroencephalogram was then analyzed using tools such as channel

spectra and maps, centering, filtering, and Welch?s power spectral density estimation.

Using Power Spectra Density (PSD) graph, we can estimate the active part of the lobe as

eye responds to flickering light, i.e. left Frontal lobe, right Temporal lobe and both side of

Occipital lobe.

Keywords: brain wave, electroencephalogram, power spectral density, occipital lobe

Topic: Biophysics and Medical Physics

Book of Abstracts

9 29-31 August 2017

[ABS-121]

Investigation of Pulse rate and ABPI (Ankle-Brachial Pressure Index) in Relax

Condition and after Exercise

Puspa Monalisa , Siti N. Khotimah, Sparisoma Viridi, and Freddy Haryanto

Institut Teknologi Bandung

Abstract

Earth gravitational field influences physiological systems such as the cardiovascular and

circulatory systems. Therefore changing the body position (standing, sitting, or supine)

affects blood pressure. In addition to pressure, pumping blood throughout the body is also

affected by the contraction of the hearts ventricles. The number of heartbeat per minute

(pulse rate) for each person varies and is affected by physical activity. In this work, blood

pressure and pulse rate when subject in relax condition when supine, sitting, and standing

position are read using a set of digital sphygmomanometer OMRON type JPN-1. Blood

pressure and pulse rate for subject after exercise are read at sitting position. The human

circulatory system in the arteries is analyzed using the Bernoulli equation to estimate the

mass density of the blood from the slope of a blood pressure to altitude curve. The ratio of

the systolic blood pressure at the ankle to the systolic pressure at brachium is calculated for

the ankle-brachial pressure index (ABPI) then it can be used to detect PAD (Peripheral

Artery Disease) as one of the cardiovascular disease.

Keywords: ABPI, pulse rate, blood pressure, position, exercise

Topic: Biophysics and Medical Physics

Book of Abstracts

10 29-31 August 2017

[ABS-138]

Myocardial Infarction Detection System from PTB Diagnostic ECG Database Using

Fuzzy Inference System for S-T Waves

Ardan Adi Nugroho, Miftahul Maarif, Aisyah Zahrotul Hidayah, Olivia

Maftukhaturrizqoh, Titin Sri Martini

Faculty of Mathematics and Natural Sciences, Sebelas Maret University

Abstract

Heart disease was the one of major health problem in the world, which caused many deaths.

Myocardial infarction is one type of heart disease which caused by a blockage in the

coronary arteries. This disease could be detected by reading ECG wave result. Knowledge

and expert analysis were required to read PQRST-wave in Electrocardiograms. Fuzzy

inference system was used in this detection system because it flexibility on linguistic

variables. Fuzzy inference system could be performed after discovery S and T peaks. The

characteristics of Myocardial Infarction could be seen through the condition of S and T

wave. Detection system test was conducted on databases that obtained from Physionet bank

PTB diagnostic ECG. The result of this research showed that test of detection system had

sensitivity level of 73%.

Keywords: Myocardial Infarction, ECG, Fuzzy Inference System

Topic: Biophysics and Medical Physics

Book of Abstracts

11 29-31 August 2017

[ABS-144]

Heart Sounds Determination Based on Sliding Window Maximum Method

Bintang Adi Kusuma, Nuryani & Darmanto

Universitas Sebelas Maret

Abstract

Abstract. Determining location of heart sounds is necessary for segmentation and feature

construction. Highest peak determination can be an alternative to find heart sounds

location. In this paper, we use sliding window maximum method to find the highest peak

of heart sounds. The sliding window maximum method uses a window that slide from left

(old signal) to the right (new signal) of heart sounds signal and finds the signal?s maximum

value and it?s position at the window. Highest peak location is classified to be heart sound

if it?s value is higher than a defined threshold and it?s position is at the middle of window.

Signal of heart sounds is received by microphone and then the signal is filtered using

resistor capacitor (RC) circuit. The signal is amplified using non-inverted amplifier

Operation Amplifier (OP AMP) circuit. Signal from the amplifier is read by analog to

digital converter (ADC) of arduino nano. In arduino nano heart sounds signal are processed

using digital signal processing Infinitive Impulse Response filter (IIR Filter). The filters are

to get dub and lub (S1 and S2) heart sounds signal. The signal processing result is stored in

personal computer (PC). 488 heart beats or 976 S1 and S2 heart sounds of 3 patients are

processed. The signal is then processed to determine heart sound location using sliding

window maximum method. Using this method we find accuracy, sensitivity and positive

predictive of 94.16%, 98,26%, and 96.00%, respectively.

Keywords: Phonocardiogram, Heart Sounds

Topic: Biophysics and Medical Physics

Book of Abstracts

12 29-31 August 2017

[ABS-192]

Superabsorbent polymers of glucomannan-poly(potassium acrylic-acrylamide)

hydrogel: Synthesis and characterization by gamma irradiation for personnel care

application

S.Mulijani, Sri Sugiarti, Qory and Erizal

Department of Chemistry

Bogor Agriculture University

Abstract

In the current work, synthesis of an environmental-sensitive superabsorbent polymer using

ɣCo irradiation is described. Grafted poly(potassium acrylic) onto a homogeneous

solution of glucomannan and acrylamide hybrid backbones created a smart material with

reversible behavior. The reaction parameters (i.e. acrylic acid, acrylamide and

glucomannan concentration, as well as irradiation time) affecting the water absorbency of

the hydrogel were optimized, in order to achieve a hydrogel with high swelling capacity.

FTIR spectroscopy was used for conforming the structure of the final product and the

morphology of the synthesized hydrogel was examined by a scanning electron microscope.

The swelling behavior of the optimized hydrogel sample in various KOH concentrations

and swelling kinetics in distilled water were investigated. The pH-reversibility and on-off

switching behaviors of entitled smart hydrogel make it a good candidate for consideration

as a potential material for personal care.

Keywords: Superabsorbent polymer, irradiation, glucomannan, acrylamide, acrylic acid

Topic: Biophysics and Medical Physics

Book of Abstracts

13 29-31 August 2017

[ABS-196]

Chitosan Nanoparticle Based Coating as Post-harvest Technology in Banana

Rizkita Rachmi Esyanti(1,2), Herafi Zaskia(1), Annisa Amalia(1), Husna Nugrahapraja

(1,3)

(1) School of Life Sciences and Technology, Institut Teknologi Bandung, Jalan Ganesa

10, Bandung, 40132, Indonesia

(2) Bioscience and Biotechnology Research Center, Institut Teknologi Bandung, Jalan

Ganesa 10, Bandung, 40132, Indonesia

(3) Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung,

Jalan Ganesa 10, Bandung, 40132, Indonesia

Abstract

Losses during post-harvest management is a common problem faced in agricultural sector.

. To prolong the preservation time perishable fruits, such as banana, edible coating is one

of an alternative method for fruit preservation method. Aims of this research are to utilize

chitosan nano-particle as edible coat and to observe its effect on Cavendish bananas (Musa

acuminata AAA group) ripening process. In this study, we synthesized and characterized

chitosan nano-particle, as well as observed chitosan nano-particle coating effect on fruit

ripening process. The result showed that, the ionic gelation method can be used to produce

chitosan nanoparticles with average diameter of 102.4 - 370 nm and polydisperity index of

0.251 ? 0.303. Fourier Transform Infrared Spectroscopy (FTIR) analysis showed a new

peak which indicated an interaction of amide groups in chitosan and tripolyphosphate

groups in NaTPP. A Scanning Electron Microscope (SEM) showed a smoother skin contour

on coated banana compared to control (non-coated). Observations of physical

characteristics of bananas ripening showed that fruits coated with chitosan nanoparticles

0.2% has a slower skin discoloration by 2-3 days compared to control treatment.

Keywords: Banana, Ripening, Edible Coating, Nano-chitosan, Ionic Gelation

Topic: Biophysics and Medical Physics

Book of Abstracts

14 29-31 August 2017

[ABS-28]

Theoretical study of the frontier orbitals of tetrahydrocurcumin in hydrogen atom

transfer mechanism

Lusia S. P. Boli1*, Vera Khoirunisa1, Adhitya G. Saputro1,2, Mohammad K. Agusta1,2,

Febdian Rusydi3, Heni Rachmawati2,4, Hermawan K. Dipojono1,2

1Department of Engineering Physics, Institut Teknologi Bandung, Bandung, Indonesia

2Research center for Nanoscience and Nanotechnology, Institut Teknologi Bandung,

Bandung, Indonesia

3Department of Physics, Airlangga University, Surabaya, Indonesia

4School of Pharmacy, Institut Teknologi Bandung, Bandung, Indonesia

Abstract

In this present work, we study highest occupied molecular orbital (HOMO) and lowest

unoccupied molecular orbital (LUMO) of tetrahydrocurumin (THC) using density-

functional theory (DFT). Experimentally, THC has been proofed to scavenge an organic

free radical, 2,2-diphenyl-1-picrylhydrazyl (DPPH). We aim our study to investigate the

HOMO-LUMO of THC to explain its ability in transferring a hydrogen atom toward free

radicals. We begin by optimizing a THC molecule without a hydrogen atom in three sites.

Then, we compare the value of HOMO-LUMO in each site to predict the reactivity of the

site toward free radicals. Our calculation reveals that two OH groups of THC have a very

similar value of HOMO-LUMO energy. This occurs due to the symmetrical shape of the

molecule. We predicted that OH groups of THC are the active sites in transferring hydrogen

atom to scavenge free radicals.

Keywords: Tetrahydrocurcumin, HOMO-LUMO, DFT

Topic: Computational Physics

Book of Abstracts

15 29-31 August 2017

[ABS-43]

Enthalpy of Formation of NaxCoO2 and (Na,Mg)xCoO2 Systems: A First Principle

Calculation Study

I. Kurniawan and B. Prijamboedi

Inorganic and Physical Chemistry Research Div.

Faculty of Mathematics and Natural Sciences

Institut Teknologi Bandung

Jl. Ganesha 10, Bandung 40132, INDONESIA

Abstract

Sodium cobaltate, NaxCoO2 (NCO) has potential application as thermal-electric

conversion devices due to large thermoelectric power value. The NCO compound also

could be applied in sodium battery system. Stability of this compound is important for those

applications since the content of sodium determine the properties of NCO compound. The

enthalpy of formation of NCO compound with 0 < x < 1 and partially substituted Na with

Mg in composition of (Na,Mg)xCoO2 has been calculated using full potential-linear

augmented plane wave (FP-LAPW) method within density functional theory (DFT). The

enthalpy of formation of NCO was found to decrease as sodium concentration, x increases.

We found that the enthalpy of formation decreases more rapidly in region of 0 < x < 0.5

and slower in 0.5 < x < 1, which is indicating the different stability region against sodium

concentration. The substitution of Mg2+ into Na+ sites decreases the enthalpy of formation

of NCO compound and suggests Mg2+ substitution could increase compound stability. In

the electronic structure, Mg2+ substitution is found to lower the position of unfilled Co-3d

band for about 0.2 eV compared to the NCO compound. The computational results also

reveal that the Co effective charge is linearly decreasing as x increasing. It is revealed also

that the effective charge of Co at x = 0.5 consist of 2 different values and ordering occur

along one crystal axis and this lead to metal-insulator transition at x = 0.5.

Keywords: NaxCoO2, thermoelectric, stability, FP-LAPW, DFT

Topic: Computational Physics

Book of Abstracts

16 29-31 August 2017

[ABS-54]

Phosphorus Dopant Configuration on Active Sites of the Pyrolyzed Fe/N/C Catalyst

Apresio Kefin Fajrial, Adhitya Gandaryus Saputro, Mohammad Kemal Agusta,

Hermawan K. Dipojono

Engineering Physics Research Group, Institut Teknologi Bandung

Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung

Abstract

One of the main challenge in realizing the commercialization of hydrogen fuel cell as an

energy source is how to substitute the scarce Pt based catalyst on the cathode part of the

fuel cell with an alternative low-cost catalyst. Pyrolyzed Fe/N/C catalyst is a type of

alternative catalyst that gains a remarkable reputation in recent years due to its good

performance in catalyzing the oxygen reduction reaction (ORR) on the cathode of hydrogen

fuel cell. Despite the notable catalytic activity of the pyrolyzed Fe-N-C catalyst, its

performance still needs to be increased. One of the possible routes for an increase in the

performance is by adding dopant. We propose to add phosphorus (P) doping on the Fe/N/C

catalyst to enhance its catalytic performance. As an initial study, we investigate the

interaction of this P dopant with the active sites of pyrolyzed Fe/N/C catalyst. During the

synthesis of the pyrolyzed iron and nitrogen containing carbon catalyst (Fe-N-C), a variety

of active sites may occur particularly the iron-nitrogen complex site (FeNx) and the

nitrogen metal-free site (CNx). This sites might interact with the P dopant and form some

unique configurations. We conducted theoretical study concerning this issue using Density

Functional Theory (DFT) approach. Our results show that the P dopant prefers to form

bonding configuration with the prevailed nitrogen (N) atom whether associated with the

FeNx or the CNx. We find that the presence of P dopant distorts the local planarity of the

graphitic structure of the catalyst. However, the geometry of FeNx site remains unaltered

with the presence of P near the site. We further discussed regarding the geometry and

formation energy of the possible configurations.

Keywords: Hydrogen fuel cell, oxygen reduction reaction catalyst, pyrolyzed Fe/N/C,

density functional theory

Topic: Computational Physics

Book of Abstracts

17 29-31 August 2017

[ABS-69]

Casimir effect between two intruders in two-dimension self-gravitation granular

particles system

Putri Mustika Widartiningsih, Siti Nurul Khotimah, Budi Dermawan, Sparisoma Viridi

Institut Teknologi Bandung

Abstract

Two identical intruders with diameter D are placed inside a system of N two-dimension

self-gravitation granular particles near the corner of the bed particles, each in opposite

direction. Initial separation distance between the two intruders are more than twice of their

diameter. The bed particles have diameter d. All particle are not in contact at t = 0 in order

to give initial vibration to the system. Intruders have mass M and bed particles m. Intruders

tend to group in the center of the system for M/m>1 and D/d=1, to group on the suface for

M/m=1 and D/d>1, to group not in particular radial position for M/m>1 and D/d>1. These

condition could be addressed to crossover condition between Brazil-nut effect (BNE) and

reverse Brazil-nut effect (RBNE) near earth surface (Hong et al., 2001), but with slightly

different characteristics. Intermittens conditions are exptected but not observed cleary.

Compaction or increasing of contactopy is observed but not so pronounce.

Keywords: self-gravitation, granular system, Casimir force, compaction

Topic: Computational Physics

Book of Abstracts

18 29-31 August 2017

[ABS-77]

Extending Voigt and Reuss Model using Virial Expansion for Simulating Self-

Memory Composite

Wibias Muliawan, Widayani, Sparisoma Viridi

Institut Teknologi Bandung

Abstract

Self-memory material is modeled using parallel and series configuration of two

compounds constructing composite material. Temperature T and stress F are the two free

variables in determining material length. Length expansion as function only of T or only

of F is already common, but combining both is still an open problem. In this work virial

expansion is also used to assure that for certain range of T and F the expression should

arrive to the known relation, e.g. ΔL=LαΔT and ΔL=(L/AE)ΔF, by introducing some

expansion coefficients in the form of α=∑Nn=0cnTn for linear thermal expansion

coefficient. As the results, behaviour in linear range is acceptable but not in the nonlinear

one, which is still a puzzle.

Keywords: Voigt-Reuss, self-memory materials, virial expansion

Topic: Computational Physics

Book of Abstracts

19 29-31 August 2017

[ABS-95]

Study of Star Orbit Around Axisymmetric Potential of Milky Way Galaxy

A. Fitriana 1, MI Arifiyanto 2

1 Department of Physics , Institut Teknologi Bandung

2 Department of Astronomy, Institut Teknologi Bandung

Abstract

We present the simulation of star orbit under the static axisymmetric galactic potential of

Milky Way Galaxy with some varying initial conditions. We consider the static galactic

parameters at present day and numerically integrate forwards within time range 2 Gyr using

4th Order Runga Kutta method. In order to obtain more informative explanation, we

visualize the star orbit in javascript. A detailed discussion is shown by investigating the star

orbit parameters in different potential models of bulge, disk, and halo. Our simulation

provides a helpful view in learning an object orbit under gravitational potential.

Keywords: Axisymmetric potential, orbit parameters, Runga Kutta

Topic: Computational Physics

Book of Abstracts

20 29-31 August 2017

[ABS-181]

SELF-SIMILARITY RELATIONSHIP MODEL PIGEONHOLE TO FRACTAL

DIMENSION ON 3D POROUS ROCK MODEL

Aceng Kurnia Rochmatulloh, Ulpa Zein Fawziah, Selly Feranie, Fourier Dzar Eljabbar

Latief

Universitas Pendidikan Indonesia

Abstract

A self-similarity relationship to the fractal dimension of 3D porous rock models has been

obtained by applying the Box-Counting fractal dimension calculation method. Self-

similarity is a characteristic of fractals which shows that fractals consist of similarly shaped

parts at each scale. 3D porous rock model that will be made is Pigeon Hole 3D model that

uses self-similarity principle in structure and substructure. The first stage of nine rock

models was made with 210 ? 210 ? 210 pixels and the matrix distribution of the rock

formers was arranged randomly with pigeon-hole-shaped grains spaced radius in the range

of 11-20 pixels, 21-30 pixels, and 31- 40 pixels with the same porosity of 30% and the level

of self-similarity varied (levels 0, 1, and 2). The fractal dimensional results obtained for the

Pigeon Hole model radiate within the range of 11-20 pixels at the self-similarity level of 0,

1, and 2 ie 2.9741, 2.9813, and 2.9862. For the Pigeon Hole model radiated in the 21-30

pixel range at the level Self-similarity 0, 1, and 2 obtained fractal dimension values of each

of 2.9792, 2.9869, and 2.9895. And the fractal dimensions obtained for the Pigeon Hole

model radiate within the range of 11-20 pixels at the self-similarity level of 0, 1, and 2 ie

2.9797, 2.9885, and 2.9916. From the data obtained that the greater the level of self-

similarity in the model Pigeon Hole forming rock model, the fractal dimension in the model

of rocks is also greater.

Keywords: self-smilarity, pigeonhole model, fractal dimension, model of porous rock

Topic: Computational Physics

Book of Abstracts

21 29-31 August 2017

[ABS-211]

Effect of High Pressure on Structural and Electronic Properties of Silicon System

with Fd3m Space Group

Shibghatullah Muhammady*, Sendi Nugraha Pratama, Yudhi Kurniawan, Yudi Darma**

Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung, Ganesha 10, Bandung 40132, Indonesia

Abstract

We study on effect of high pressure on structural and electronic properties of silicon (Si)

system with Fd3m space group calculated by using generalized gradient approximation. In

room pressure (P) of 10-4 GPa, calculated lattice parameter (a) and bandgap (Eg) are

respectively 0.5163 nm dan 0.643 eV with indirect type (G to 0.4D). On the other hand, at

P of 5 GPa, calculated a and Eg are reduced to 0.5076 nm dan 0.564 eV with indirect type

(G to 0.4D), respectively. At P of 11.3 GPa, when the space group of Si starts to be I41/amd,

calculated a and Eg are further reduced to 0.4989 nm dan 0.442 eV with indirect type with

modified transition from G to X points. Besides, obtained valence band is mainly from Si

3p states near Fermi level and Si 3s at lower energy levels, while obtained conduction band

is mainly from Si 3p states. The widths of both bands are increased due to the increasing

of P. Overall, this study shows that pressure can be used to tune the structural and electronic

properties of Si system and can be a guide for high-pressure Si-based photonic application.

Keywords: electronic properties, high pressure

Topic: Computational Physics

Book of Abstracts

22 29-31 August 2017

[ABS-11]

Theoretical Investigation on the Possibility of Montmorillonite in Reducing Air

Pollution: A Density Functional Theory Study

Triati Dewi Kencana Wungu (a,c*), Meqorry Yusfi (b), Suprijadi (b,c)

a) Nuclear Physics and Biophysics Research Group, Department of Physics, Institut

Teknologi Bandung, Jalan Ganesa 10 Bandung 40132

triati@fi.itb.ac.id

b) Theoretical High Energy Physics and Instrumentation Research Group, Department of

Physics, Institut Teknologi Bandung, Jalan Ganesa 10 Bandung 40132

c) Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung,

CAS Building, Jalan Ganesa 10 Bandung 40132

Abstract

Increasing economic growth spurs the development of the automotive industry that turned

out to give negative effects, especially on the environment. Air pollution obtained from

vehicle exhaust continues to increase and led to a steep increase in various illnesses.

Therefore, air pollution control efforts are needed. One of the ways is to utilize materials

that have high absorption of pollutants which can be found in a smectite group clay. In this

research the density functional theory (DFT) method is used to investigate the stability and

the changes of electronic properties of lead oxide adsorbed on smectite clay mineral. A Mg

substituted clay named montmorillonite, with Ca(II) compensating cations on its surface

has confirmed to be interacted with lead oxide seen from their bond length through

physisorbed reaction. The large surface area on montmorillonite is one of the reasons that

lead oxide can be interacted with montmorillonite.

Keywords: DFT, montmorillonite

Topic: Condensed Matter Physics

Book of Abstracts

23 29-31 August 2017

[ABS-84]

Thermophysical Parameters of Organic PCM Coconut Oil from T-History Method

and Its Variation with Chemical Dopant

Alfriska O Silalahi1, I M Sutjahja1, D Kurnia1 and S Wonorahardjo2

1 Dept. of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung

2 Building Technology Research Division, School of Architecture, Planning and Policy

Development, Institut Teknologi Bandung

Jl. Ganesha No. 10, Bandung, Indonesia 40132

Abstract

The thermophysical parameters of organic phase change material (PCM) of coconut oil

(co_oil) have been studied by analyzing the temperature vs time data during liquid-solid

phase transition (solidification process) based on T-history method. Analysis of the data

have reveal the values of solid specific heat, liquid specific heat and the heat of fusion of

co_oil. In this paper we describe the thermophysical parameters of co_oil along with the

type and concentration of micro-particle chemical dopant. The dopant consist of graphite

and metal oxides (CuO and ZnO), with concentration of 1%wt and 2%wt, while the data of

pure co_oil is used for comparison. We found that the values of liquid specific heat almost

unchanged with the type and concentration of the dopant, while the values of solid specific

heat decrease with dopant for all type of dopant regardless the amount of dopant

concentration. The heat of fusion, on the other hand, has different variation for different

type of dopant: it almost constant for graphite dopant, decreases monotonously for CuO

dopant, while for ZnO dopant it has a maximum value for 1%wt dopant. These values are

important to estimate the heat storage capability of co_oil and also usefull to analyze the

thermal conductivity data based on the same method.

Keywords: Phase Change Material (PCM); coconut oil (co_oil); T-history method;

chemical dopant, thermophysical parameters (solid specific heat, liquid specific heat and

heat of fusion).

Topic: Condensed Matter Physics

Book of Abstracts

24 29-31 August 2017

[ABS-85]

The Role of Micro Particle Dopant to the Thermal Conductivities of PCM Coconut

Oil by Means of T-History Method

Alfriska O. Silalahi,1 I.M. Sutjahja,1 D. Kurnia,1 S. Wonorahardjo2

1 Dept. of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung

2 Building Technology Research Division, School of Architecture, Planning and Policy

Development, Institut Teknologi Bandung

Jl. Ganesha No. 10, Bandung 40132

Abstract

We described in this paper the role of chemical dopant to the thermal conductivity of

organic phase change material (PCM) of coconut oil (co_oil) based on T-history method.

We used the micro particle dopant that consist of graphite, CuO and ZnO. Each kind of

dopant was added to co_oil in certain amount of 1%wt and 2%wt. For comparison, the data

of pure co_oil was also taken and compared to the reference values. Due to smaller diameter

to height ratio of the reaction tube that are used in the measurement, the lumped capacitance

method is applicable here. Hence, the heat transfer from PCM to water during solidification

or melting is one dimensional, so that the one dimensional transient heat diffusion equation

for cylindrical geometry is applicable. Analysis of the data for solidification and melting

processes led to the values of solid and liquid thermal conductivities. We note that in

general the dopants have effectively increased the thermal conductivities of co_oil, which

is important for the effective heat transport of the material as response to the environment

condition.

Keywords: Phase Change Material (PCM), co_oil, T-history method, solid thermal

conductivity and liquid thermal conductivity.

Topic: Condensed Matter Physics

Book of Abstracts

25 29-31 August 2017

[ABS-87]

Enthalpy-Temperature Curve of Phase Change Materials of CaCl2.6H2O and

Coconut Oil for Latent Heat Energy Storage

Alfriska O Silalahi1, Nissa Sukmawati1, I M Sutjahja1, D Kurnia1 and S Wonorahardjo2

1 Dept. of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung

2 Building Technology Research Division, School of Architecture, Planning and Policy

Development, Institut Teknologi Bandung

Jl. Ganesha No. 10, Bandung, Indonesia 40132

Abstract

Enthalpy as a function of temperature is one of the most important thermophysical

parameters of phase-change materials (PCM). This parameter is particularly essential to

optimize the performance of PCM as latent heat energy storage for certain application,

since it determine the quantity of thermal energy around the phase change region. In this

paper the enthalpy-temperature curve of inorganic and organic PCM of CaCl2.6H2O and

coconut oil have been studied by analyzing the temperature vs time data during liquid-solid

phase transition (solidification process) based on T-history method. The analysis of the data

have been performed following the method by Marin et al. The results show the

crystallization or solidification temperature and the estimated amount of solid-liquid

enthalpy change, to be compared with the data obtained from other analysis or

measurement methods.

Keywords: Phase Change Material (PCM); coconut oil (co_oil); CaCl2.6H2O, T-history

method; Enthalpy

Topic: Condensed Matter Physics

Book of Abstracts

26 29-31 August 2017

[ABS-114]

Study of The PDMS / Silica Cristobalite Composite Hydrophobic Surface from

Natural Sand

Roihatur Rohmah (a*), Moch. Zainuri (b)

a) Institut Teknologi Sepuluh Nopember, Surabaya

Jl. Raya ITS, Keputih, Sukolilo, Surabaya

*roihaturrohmah@gmail.com

b) Institut Teknologi Sepuluh Nopember, Surabaya

Abstract

The observation of effect lotus leaves wettability behavior which can be applied in various

application. Silica had a good characteristics in terms of hydrophobic stability. This

objective of this study was to create a hydrophobic surface from a composite material of

SiO2 filler and PDMS polymer as matrix. This research had two mechanism of the process.

They were synthesis cristobalite SiO2 and fabrication of hydrophobic surface. Silica was

obtained from the purification of natural quartz sand Bancar, Tuban, East Java. Variations

of temperature treatment were done at 100, 200, 300, 400, and 500 C on heating process of

the hydrophobic surface. The results show that the highest contact angle of hydrophobic

surface is 126.4 (hydrophobic) at temperature of 400C and the lowest is 72.4 (hydrophilic)

at temperature of 500C.

Keywords: cristobalite, hydrophobic, PDMS

Topic: Condensed Matter Physics

Book of Abstracts

27 29-31 August 2017

[ABS-118]

Influences of Aluminum Content to The Aspect Ratio (L/r) of Aluminum doped ZnO

Nanorod; Growth by Self-Assembly Method

Annisa Aprilia1, Heri Fernando1, Lusi Safriani1, Ayi Bahtiar1, Tuti Susilawati1 dan

Rahmat Hidayat2

1Departemen Fisika, Fakultas MIPA, Universitas Padjadjaran, Jl. Raya Bandung-

Sumedang KM 21, Jatinangor 45363

2Departemen Fisika, Fakultas MIPA, Institut Teknologi Bandung, Jl. Ganesa No. 10,

Bandung 40132

Abstract

This work investigates the influences of aluminum content to the growing process of

Aluminum doped Zinc Oxide (AZO) nanorod using self-assembly method. The growth

mechanism of zinc oxide (ZnO) nanorod structure is strongly dependent on the ZnO seed

layer conditions. In this work we used AZO (0.5 wt% of aluminum) thin film as seed layer

which is has relatively low surface roughness compared to undoped ZnO. A low surface

roughness of ZnO seed layer has tendency to produce a small diameter of ZnO nanorod. In

order to study the existence of aluminum dopan on the formation of AZO nanorod structure,

aluminum chloride as doping agent was inserted in nanorod growth solution. Intercalation

of aluminum atom to ZnO nanorod structure was occurred during deposition processes via

self-assembly method at 100?C for 120-180 minutes. The influences of aluminum content

on the structural and morphological properties were investigated through scanning electron

microscopy, X-ray diffraction, and ultraviolet spectroscopy. The obtained X-ray diffraction

patterns showed that the synthesized AZO nanorods were exhibited a preferred orientation

along the (002) plane and other peaks that correlated with zinc aluminate (ZnAl2O4) spinel

nanorod also detected. Increasing time deposition and existence of aluminum was observed

can influence a well-aligned growth and reduction in nanorod diameter size leading to

increment on aspect ratio (ratio between length and diameter size).

Keywords: ZnO nanorod, aluminum doped ZnO, self assembly, X-ray diffraction,

scanning electron microscopy

Topic: Condensed Matter Physics

Book of Abstracts

28 29-31 August 2017

[ABS-128]

The NIR Absorbance Properties of Carbon Nanoparticle Prepared by

Hydrothermal Route: Time and Temperature Reaction Dependence

Ferry Iskandar1,3,*, Suci Khairani1, Akfiny Hasdi Aimon1, Fitri Aulia Permatasari2 and

Prasiwi Handari Jati1

1 Energy and Environmental Materials Laboratory, Electronic Materials Division,

Department of Physics, Faculty Mathematics and Natural Science, Institut Teknologi

Bandung, Bandung 40132

2Department of Chemical and Engineering, Hiroshima University, Japan

3Research Centre for Nanoscience and Nanotechnology, Bandung, Indonesia

Abstract

Carbon Nanoparticle (CNP) is derivative of bulk carbon particle that has the unique

properties such as good photoluminescence, good solubility in water, low toxicity,

biocompatible, high chemical stability, has the broad absorbance, friendly environment and

easy to be synthesized. Beacuse of its unique properties, there are many aplications to

develop the CNP potential suchs as bioimaging, biosensing, optoelectronic device,

photothermal agent and catalysts. In this research, CNP has been succesfully synthesized

by hydrothermal method by varying the temperature and time reaction. The result showed

that redshift phenomena in absorbansce depends on increasing the time and temperature

reaction. In the optimal condition, the obtained CNP has the absorbance in 656 nm of center

in absorbance wavelength. From the obtained result, it can be concluded that the variation

of temperature and time reaction affect teh CNP? absorbance ability and the chemical

bonding that consisted in CNP.

Keywords: CNP, hydrothermal, absorbance, temperature

Topic: Condensed Matter Physics

Book of Abstracts

29 29-31 August 2017

[ABS-145]

Effect of Microwave Duty Cycle on The Electrical Conductivity of Reduced

Graphene Oxide (RGO)

Ferry Iskandar1,3,*, Utiya Hikmah1, Oktaviardi Bityasmawan Abdillah1, Akfiny Hasdi

Aimon1 , Dadang Suhendar2

1Energy and Environmental Materials Laboratory, Electronic Materials Division,

Department of Physics, Faculty Mathematics and Natural Science, Institut Teknologi

Bandung, Bandung 40132

2Electric and Magnetism Laboratory, Department of Physics, Faculty Mathematics and

Natural Science, Institut Teknologi Bandung, Bandung 40132

3Research Centre for Nanoscience and Nanotechnology, Bandung, Indonesia

ferry@fi.itb.ac.id

Abstract

Graphene as 2D material has attracted a lot of attention due to its fascinating properties.

Chemical synthesis process is known as the simplest and easiest synthesis method to

produce graphene by reducing the graphene oxide into reduced graphene oxide (rGO). Here

in this paper, the reduction process of graphene oxide is assisted by microwave to speed up

the heating process that make this method more efficient. The reduction process is done in

ambient and under nitrogen atmosfer. The microwave duty cycle and time used as

parameter to be observed into the electrical properties of rGO. The prepared samples were

characterized using X-ray diffraction (XRD), Fourier transform infrared spectrometry

(FTIR), Scanning electron microscopy (SEM), Energy dispersive X-ray spectrometry

(EDX), Transmission electron microscopy (TEM) and four point probes. The highest

conductivity obtained with microwave duty cycle 100% (high) in 3 minutes under nitrogen

atmosfer reach 1810 S/m and dominated by ~90% of C atoms.

Keywords: reduced graphene oxide, electrical conductivity, chemical exfoliation,

microwave assisted

Topic: Condensed Matter Physics

Book of Abstracts

30 29-31 August 2017

[ABS-182]

Spectral Distribution of Fano Interferences in Classical Damped Oscillation

P.M Widartiningsih, D. Rahmawati , A. Fitriana , A.M Yusuf, Irhas, M. Yunus

Department of Physics Institut Teknologi Bandung

Abstract

We present the classical analogy of Fano interferences in helpful view to understand Fano

behavior of phonons excitation as the interaction of two harmonic oscillators in damped

oscillation system. In order to obtain more informative explanation, we demonstrate the

coupled oscillator motions in javascript using numerical integration method of 4th Order

Runga Kutta. A detailed discussion of Fano spectral distribution is shown by considering

some varied oscillation parameters including natural oscillation frequency, damping factor,

coupling constant, as well as applied external force. It is further shown that the oscillation

phase-shift differs in those varied oscillation parameters. The range of allowed parameters

values to get the appropriate results will be listed in this article.

Keywords: Fano interferences, phase-shift , Runga Kutta

Topic: Condensed Matter Physics

Book of Abstracts

31 29-31 August 2017

[ABS-193]

Electronic Structure of Inorganic Alkali Lead Iodide APbI3 (A=Li, Na, K, and Cs)

from Density Functional Theory (DFT) Calculation Results

Pina Pitriana, Triati Dewi Kencana Wungu, Herman and Rahmat Hidayat

Physics Program Study, Faculty of Mathematics and Natural Sciences Institut Teknologi

Bandung;

Physics Education Program Study, Faculty of Tarbiyah and Teacher Training, Universitas

Islam Negeri Sunan Gunung Djati Bandung

Abstract

The electronic structure of inorganic alkali lead iodide APbI3?s properties are investigated

by first-principles calculations based on Density Functional Theory (DFT) using Quantum

Espresso. The alkali atom A in these perovskite structure is either lithium (Li), sodium

(Na), potassium (K), or cesium (Ce). The calculation results show the effect of alkali atom

on band gap and density of states (DOS) distribution, leading a variation in their electronic

structure and electronic characteristics. Initial structure of all compound is cubic Pm3m

framework structure of APbI3 where A is cation of alkali, such as lithium, natrium, kalium,

and cesium. To obtain optimal result, the lattice parameter of APbI3 are changed through

the scheme of vc-relax calculation in Quantum Espresso and also the optimization of kinetic

energy cutoff and k-point. The using of pseudopotential type also give affect to total energy

calculation, we used LDA and GGA both to be compared. Different alkali elements in

perovskite compound tuning the electronic characteristics of the materials, such as their

band gap and density of states. The band gap range from 1.39 eV ? 1.48 eV and there are

no specific order for the change of alkali elements. From these calculations, we identify

that inorganic alkali lead iodide show semiconductor properties, as also reported by other

reports elsewhere. Three compound (LiPbI3, NaPbI3 and KPbI3) are potential to be used

as solar cell absorber materials while CsPbI3 had been used as active materials in solar

cells.

Keywords: perovskite, density functional theory, ab-initio calculation, solar cell

Topic: Condensed Matter Physics

Book of Abstracts

32 29-31 August 2017

[ABS-201]

RHEED patterns of 1 nm carbon layer coated Si (111) surface using Sputtering

Risa Suryana, Dianisa Khoirum Sandi, Hitoshi Nakahara, Yahachi Saito

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas

Sebelas Maret, Indonesia

Department of Quantum Engineering, Graduate School of Engineering, Nagoya

University, Japan

Abstract

In order to overcome the high cost of SiC substrates, researchers reacted carbon atoms and

Si surface to obtain SiC layers on Si substrate since one decade ago. The SiC is best

substrate to grow the graphene. In this research, 1 nm carbon layer was coated on Si(111)

surface using Sputtering method. After RCA cleaning process, n-type Si(111) with

resistivity 1.5-4.5 ohm.m was put into the main chamber then transferred into the growth

chamber after the vacuum condition was attained. The carbon source was evaporated with

plasma energy of 150 watt for 3 min to obtain about 1 nm carbon layer on Si(111) surface.

The samples were characterized using ex-situ the reflection high energy electron diffraction

(RHEED), the scanning electron microscopy (SEM) and the Raman spectroscopy. The

sample was annealed at RT-1200oC while the evolution of RHEED pattern was observed

using the cooled CCD camera. Amorphous pattern appeared at RT-700oC, combination of

dot and ring patterns appeared at 800-900oC and finally Si(111)-7x7 appeared at 1200oC.

Dot patterns was investigated as SiC structures. From SEM images, it is confirmed that

triangle SiC formed on Si(111) surface. However, Raman spectroscopy did not show the

SiC curve. It is assumed that SiC formed on Si (111) surface in the form of inhomogeneous

triangular islands rather than in the form of layers so it cannot scatter many lasers.

Keywords: RHEED, Si(111)-7x7, SiC, SEM, Raman spectroscopy

Topic: Condensed Matter Physics

Book of Abstracts

33 29-31 August 2017

[ABS-204]

Modeling of Electron Transmittance and Tunneling Current through a Trapezoidal

Potential Barrier by Considering Spin Polarization Effect

Fatimah A. Noor*, Ezra Nabila, Hantika Mardianti, Tisa I. Ariani and Khairurrijal

Physics of Electronic Materials Research Division,

Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung,

Jalan Ganesa 10, Bandung 40132, Indonesia

* Email: fatimah@fi.itb.ac.id

Abstract

A Modeling of transmittance and tunneling current through a trapezoidal potential barrier

has been developed by taking into account a spin polarization of electrons. A transmittance

was calculated by using Airy wavefunction approach and employing a zinc-blende material

for the barrier in the heterostructure which depends on the spin states indicated as "up"and

"down". The obtained transmittance was then used to calculate the tunneling current by

using Gauss Laguerre Quadrature method. It was shown that the transmittance was not

symmetric with incident angle of electron. It was also shown that the tunneling current

increases with increasing the bias voltage and tends to constant for high voltage regime.

Keywords: transmittance, tunneling current, potential barrier, zinc-blende material, spin

polarization

Topic: Condensed Matter Physics

Book of Abstracts

34 29-31 August 2017

[ABS-212]

Critical point analysis of ZnO thin films on different electronic environments

Muhammad A. K. Purbayanto1*, Rafi Ichwan1, Eka Nurfani1, Yudi Darma1*

Department of Physics, Faculty of Mathematics and Sciences, Institut Teknologi

Bandung, Ganesa 10 Bandung 40132, Indonesia

Abstract

We study the effect of different electronic environment on excitonic properties of ZnO thin

films. The thin films were deposited on Si (Semiconductor) substrates and SiO2 (Insulator)

layer using DC-unbalanced magnetron sputtering at room temperature. Optical properties

of ZnO were determined by spectroscopic ellipsometry with energy range from 1.2 to 6.5

eV. The thin films were modelled by Tauc-Lorentz and Gaussian oscillators to obtain the

complex dielectric function. In order to extract the excitonic properties, the dielectric

function is analysed by critical point (CP) line shapes. We found that the excitonic state of

ZnO on SiO2 is stronger and shifted to the lower energy comparing with the case of ZnO

film on Si. In the case of ZnO on Si, we suggested that the electronic transfer occurs from

Si substrate to the thin film after photon energy applied and then reduces the binding energy

of exciton. Furthermore, this behaviour is analysed by number of effective electron (Neff)

extracted from the dielectric function. In the band gap region, Neff spectra of ZnO/Si is

higher than that of ZnO/SiO2. Our results reveal that the modification of electronic

environments affect the excitonic properties of ZnO, which is important for optoelectronic

applications.

Keywords: -

Topic: Condensed Matter Physics

Book of Abstracts

35 29-31 August 2017

[ABS-8]

Application of Empirical Mode Decomposition to Noise Reduction in Seismic Data

Arya Dwi Candra, Puput Eka Suryani

Ronggolawe College of Technology (STTR Cepu)

Abstract

Earthquake waves are very complex three-component signals, requiring filtering methods

that can filter three components simultaneously. A good seismic signal is a signal that is

free of noise, both in the instrument noise and in the field noise. We develop an efficient

filter method that can reduse seismic noise in three-component seismograms. The filter use

ensemble empirical mode decomposition (EEMD) to decompose a signal into several

intrinsic mode functions (IMFs). EMD is highly adaptive and can be very satisfying in

time-frequency characteristics of signals. The method requires no prior knowledge of the

target signals. EEMD method was tested on synthetic data with different random noise

level. The result shows that this method can reduce the seismogram of signal noise

efficiently. This method is very effective to reduce noise, both on synthetic data and field

data.

Keywords: noise, earthquake, adaptive filter, matlab

Topic: Earth and Planetary Sciences

Book of Abstracts

36 29-31 August 2017

[ABS-12]

Gravity Survey in Pandan Mountain

Eko Januari Wahyudi, Djoko Santoso, Ahmad F. M. Ulum

Applied Geophysics and Exploration Research Group, Institut Teknologi Bandung

Abstract

Pandan Mountain is volcanic area located near Kendeng Zone in East Java, Indonesia.

Pandan Mountain area, that becomes one of geothermal prospect in East Java, was impacted

an earthquake event with 4.2 Richter scale on 25th June 2015 (10:35 AM local time). In

this study, we conducted gravity survey in Pandan Mountain area to understand density

subsurface. Data acquisition and processing are describe in detail to provide gravity

anomaly map in this study area. The gravity anomaly then transformed into frequency

domain to provide depth estimation of subsurface sources. We conducted subsurface

modeling to find the interface density between hot-volcanic intrusion (modeled with low

density) and background rock of pyroclastic layer (modeled with high density). The

preliminary results of 2.5-D gravity inverse modeling shows that low density distribution

up to 500 meters depth from the subsurface. Trend of low density distribution in the

subsurface also found in the deeper depth in the Southern part of study area.

Keywords: gravity; acquisition, processing, subsurface modeling, Pandan Mountain

Topic: Earth and Planetary Sciences

Book of Abstracts

37 29-31 August 2017

[ABS-60]

Preliminary Study on Electrical Properties of Hydrocarbon-Contaminated Soils at

an Artisanal Oil Field in Central Java, Indonesia

Eleonora Agustine1 , Dini Fitriani1, Wahyu Srigutomo2, Mia Uswatun Hasanah1,

Anggie Susilawati1, Ilma Danandika Dimawani1, Teguh Deo Pambudi1, , Silvia Jannatul

Fajar3, Trimadona2

1)Geophysics Dept., FMIPA Universitas Padjadjaran, KM 21 Jatinangor Sumedang

2)Physics Dept., FMIPA ITB, Jl. Ganesha 10 Bandung

3)Geophysics Engineering, FTTM, Jl. Ganesha 10 Bandung

Corresponding author: leo@geophys.unpad.ac.id

Abstract

Investigation on hydrocarbon-contaminated soils at artisanal or traditional oil fields is a

challenging task since the choice of an appropriate non-hazardous method is a must.

Currently, the ground penetrating radar (GPR) method is widely accepted to apply in such

a case. In this study we propose an alternative method in analyzing hydrocarbon leakage

absorbed by soil. For years, local people operate this artisanal oil field and they often pour

in the unused oil waste into the ground. Discrete measurements of electrical conductivity

of core samples were conducted using Decagon EM 50 instrument. The samples were taken

from an artisanal oil field near a state-owned oil field located in Central Java. The

hydrocarbon-contaminated soils were compared to those taken from uncontaminated soils

in the same area. Depth of the coring is 70 and it was sampled at every 5 cm to obtain its

conductivity values. The natural-uncontaminated soils showed a maximum value of 0.65

dS/cm at 22 cm deep whereas the maximum conductivity value of the contaminated soil

samples is 1.4 dS/cm at 31 cm deep. The results of this study indicate that the electrical

conductivity values of the contaminated soils increase in contrast to what is expected where

the introduction of hydrocarbon into soil will tend to decrease its electrical conductivity

value since hydrocarbon is highly resistive. These results suggest that biodegradation may

have been occurring in the contaminated soils for a considerably length of time

Keywords: hydrocarbon-contaminated soils, electrical conductivity, biodegradation

Topic: Earth and Planetary Sciences

Book of Abstracts

38 29-31 August 2017

[ABS-62]

3-D Modeling of Time Domain Electromagnetics (TDEM) Method to Analyze the

Layered Earth Structure in the Geothermal Systems

Cahyo Aji Hapsoro(1*), Wahyu Srigutomo (1), Acep Purqon(1)

(1) Earth Physics and Complex Systems, Physics Department, Faculty of Mathematics

and Natural Sciences, Institut Teknologi Bandung

*Email: cahyoajihapsoro@gmail.com

Abstract

2-D Time Domain Electromagnetic (TDEM) has been successfully conducted to illustrate

the resistivity distribution under the Earths surface. Resistivity is one of the physical

properties which is very important to determine the reservoir potential area of geothermal

systems as one of renewable energy. In this study we used Time Domain Electromagnetic

method due to its advantages in solving EM field interaction problem on complex geometry

and analyzing transient problems. TDEM method is used to model the value of electric and

magnetic fields as a function of the time, distance, and depth. Resistivity values used in this

model are adjusted to the real condition of the geothermal system specifically between 10-

70 ohm.meter which is the resistivity range of the reservoir in a geothermal systems. The

results of this modeling can be applied to describe the Earths subsurface resistivity values

to determine the reservoir potential of geothermal systems.

Keywords: time domain electromagnetics, resistivity, geothermal systems, renewable

energy

Topic: Earth and Planetary Sciences

Book of Abstracts

39 29-31 August 2017

[ABS-67]

Forward Modeling of Self Potential Time Series Response for DNAPL Detection in

Closed Aquifer

Harry Mahardika, Neny Kurniasih, Muhammad Zaki, dan Aditya Fabio

KK Fisika Bumi dan Sistem Kompleks

Fakultas Matematika dan Ilmu Pengetahuan Alam

Institut Teknologi Bandung

Abstract

Recent studies show significant electrical signals have been measured during water

injection on the open aquifer, and on hydrocarbon production operations from a petroleum

reservoir. The generation of electric signals come from the first two kilometers depth of the

Earths crust, where the electrokinetic effect contribution is the most likely mechanism to

explain the behavior of this measurable electromagnetic radiation. In geosciences,

examples of applications utilizing these electrokinetic effects include the characterization

of groundwater flows in porous rocks, oil and water production monitoring in reservoir

operations, CO2 absorption in soil, and studies of diffusion of ionic species in saturated

airborne clays used as parent formations for long-term safeguards Toxic wastes. In this

study we simulate a monitoring mechanism for pollutants and toxins that can contaminate

the communitys drinking water that are derived from a closed aquifers. We will use the

self-potential (SP) method as the monitoring device that can detect electric signals from

various physical ways beneath the surface. In the simulation will be use a forward modeling

scheme for continuous model built on the numerical solution of the diffusion and Poisson

equations. This continuous model will be adapted to represent the physical properties of

the closed aquifer stream and the pollutant material going to the. The measured SP signals

is coming from the pollutant stream in this aquifer.

Keywords: Self-Potential Method, Forward Modeling, DNAPL Monitoring, Closed

Aquifer System

Topic: Earth and Planetary Sciences

Book of Abstracts

40 29-31 August 2017

[ABS-74]

Geomagnetic Map of Field Camp Geophysics in Karangsambung using Data

Acquisition 2005-2017

Eko Januari Wahyudi and Dedi Sukmayadi

Applied Geophysics and Exploration Research Group, Institut Teknologi Bandung

Abstract

The implementation of field activities in karangsambung geophysical engineering itb has

been done since 1996 until 2017. During the field study activities, students conducted

acquisition activities with several geophysical methods, one of the most consistent is the

acquisition of geomagnetic data. Compilation of geomagnetic data during karangsambung

field activities will be presented in this paper. There are 3 data categories for 19 times each

years of geomagnetic survey: data compilation 1996-2004, 2005-2012 data compilation

(geometric magnetometer & / scintrex), and data compilation 2013-2017 (scintrex

magnetometer & gsm 19t sys). Geomagnetic observations around the base (LIPI campus)

consisted of 2815 data showing geomagnetic field trends that decreased with a rate of

change of -9 to -13 nT / year. Observations in Karangsambung field reaching an area of

&#8203;&#8203;80 km square are used as reference values&#8203;&#8203;/datum

observations at the base station. Furthermore, each observation data from data compilation

2005-2017 (3118 data) scattered in karangsambung area is reduced to the reference datum.

Contour map of total intensity in the Karangsambung field is in the range of 44000 to 46200

nT. Some locations with dipole anomaly patterns can be shown to correspond with

magnetic lithology of rocks, such as gunung parang, dakkah and bujil.

Keywords: geomagnetic; Karangsambung; field camp; data acquisition

Topic: Earth and Planetary Sciences

Book of Abstracts

41 29-31 August 2017

[ABS-100]

Distribution of solar energetic particles and magnetic field gradient related to solar

storms in solar cycle 24

Dhani Herdiwijaya

Astronomy Division and Bosscha Observatory, Institute Technology of Bandung

Abstract

Based on hourly data of solar energetic particles (proton flux, velocity, and density) and

derived interplanetary magnetic field gradient, we studied their gradients and shocks

relation with solar storm during years 2009 to 2016 of solar cycle 24. It is suggested that

solar storm related to gradient of magnetic field, particle shock and flow direction.

Keywords: space weather; solar storm; magnetospheric physics

Topic: Earth and Planetary Sciences

Book of Abstracts

42 29-31 August 2017

[ABS-101]

Development of Data Acquisition Instrumentation and Inversion System for Earth

Resistivity Survey in a Smart Integrated System

Ihsan Imaduddin, Wahyu Srigutomo, Enjang Jaenal Mustopa

Departement Fisika, Institut Teknologi Bandung

Abstract

This research has developed an integrated system of data acquisition and inversion process

for earth dc resistivity survey in smart and compact instrumentation. Data acquisition

system was developed based on microcontroller which is embedded to a PC. The

microcontroller will choose the appropriate electrode sensor by command of PC . The data

of a measurement and its electrodes configuration will be saved in PC. Once the data

acquisition process is complete, automatically the system will start the inversion process

based on finite difference method. Finally, the result of survey process will be shown in a

2D cross section image.

Keywords: instrumentation, inversion, finite difference, smart integrated system

Topic: Earth and Planetary Sciences

Book of Abstracts

43 29-31 August 2017

[ABS-113]

Landslide Investigation and Back Analysis of Slide Plane Using Integrated

Multidisciplinary Approach

Matheus Souisa1*), Lilik Hendrajaya2, Gunawan Handayani3

Department of Physics, Faculty of Mathematics and Natural Sciences, Institute of

Technology Bandung, Indonesia

Abstract

It has been used many methods for studying the problems of landslides from the point of

view of the one-discipline, interdisciplinary and multidisciplinary. Several methods are

being developed to be integrated in the investigation of landslides over the past decade, the

focus of studies directed to use a multidisciplinary approach to determine the potential

landslides that can provide landslides mitigation. It has been used many methods for

studying the problems of landslides from the point of view of the one-discipline,

interdisciplinary and multidisciplinary. Several methods are being developed to be

integrated in the investigation of landslides over the past decade, the focus of studies

directed to use a multidisciplinary approach to geoelectric, geotechnical and geochemical

to determine the potential landslides that can provide landslides mitigation. The research

result showed the occurrence of slide plane (rotation slide type) in the Amahusu landslide.

There is a slip plane due to contacts between clusters of medium rock (clay sand) and high

rock groups (bedrock), caused by rainwater infiltration and increased groundwater pressure

mobility and weathering of rocks. This is indicated by the value of the slope safety factor,

Fs = 1.04 when the normal water level, and the water level increases Fs = 0.81. In the

landslide location it is possible to have potential for subsequent landslides. The decrease of

slope stability is influenced by the rising of ground water level. To increase the strength of

the slope, reinforced at the top of the slope is 2 m from the crest with borepile (Fs = 1.13).

If the shear strength increases linearly with depth, the safety factor only increases by

decreasing the slope height.

Keywords: landslides, back analysis, slide plane, multidisciplinary

Topic: Earth and Planetary Sciences

Book of Abstracts

44 29-31 August 2017

[ABS-129]

Responses of Ionosphere Above Pontianak And Tanjung Sari to The CME Event.

(Study Case of CME Event on November 7th, 2013)

Newton Jefons (a*), Dhani Herdiwijaya (a), Jiyo (b)

a) Astronomy Study Program, Bandung Institute of Technology, Jalan Ganesha 10,

Bandung 40132, Indonesia

newtonjefons@gmail.com

b) Lembaga Penerbangan dan Antariksa Nasional

Jalan Dr. Junjunan 133. Bandung

Abstract

Sun is the main source of space weather dynamic trigger. Solar activities take control to

keep the environment of the Solar system. Some Solar activity is Sun spots, flare events,

coronal holes and coronal mass ejection (CME). These activities are connected one another

and some time could occur simultaneously. CME is one of the Solar activities caused by

the mass of the Sun ejected out from the corona to the interplanetary space. And not only

that sometime CME could disturb the environment of the Earth. On of the disturbance

caused by CME is the anomaly of F2 layer on Earths ionosphere. In this research, the study

case about the anomaly of Ionosphere caused by the CME event on November 7th, 2013

had been done and analysis result shows that there is a delay time of the anomaly for two

places (stations) at the different latitude, Tanjung Sari and Pontianak. It can be concluded

that the region above Tanjung Sari is more sensitive than the region above Pontianak,

marked by the significant decreasing of foF2 values at Tanjung Sari.

Keywords: CME, Anomaly of Ionosphere

Topic: Earth and Planetary Sciences

Book of Abstracts

45 29-31 August 2017

[ABS-130]

Relation of crustal and upper mantle deformation beneath Sunda-Banda Island Arc

inferred from shear-wave splitting analysis

Syuhada Syuhada, Nanang T. Puspito,Titi Anggono, Nugroho D. Hananto, Hendra

Grandis and Tedi Yudistira

Research Centre for Physics - Indonesian Institute of Sciences (LIPI), Tangerang Selatan,

Indonesia

Faculty of Mining and Petroleum Engineering, ITB, Bandung, Indonesia

Research Centre for Geotechnology-LIPI, Bandung, Indonesia

Abstract

We study the possible correlation of deformation in the crust and upper mantle beneath

Sunda-Banda Island Arc using shear wave splitting analysis. The study area is very

complex and located in the region where there is a transition in tectonic setting from

subduction to collision. In this study, we measure the upper mantle splitting parameters

from local events recorded at 6 broadband stations. The fast directions of the upper mantle

splitting results are then compared with the orientation of fast waves previously obtained

in the crust. The results show that the upper mantle fast orientations are generally parallel

to the crustal splitting pattern. Thus, this finding indicates the possibility of vertical

coherent deformation between the crust and upper mantle in this area. Our initial

interpretation is that this pattern could be related to the geodynamical process due to the

change of tectonic regime from subduction to collision, which involves high stresses and

strains in the plate boundary.

Keywords: Shear wave splitting, Sunda-Banda Island Arc, Upper mantle, Crust,

Deformation

Topic: Earth and Planetary Sciences

Book of Abstracts

46 29-31 August 2017

[ABS-136]

Geochemical Characteristics of Volcanic Rocks from The Mt.Masurai"s Caldera,

Jambi, Indonesia

1) Asep Rohiman*, 1)Dipowiguno Prijanto, 1)Arief Prabowo, 1)Antonius Ratdomopurbo,

1)Ruly Setiawan, 1)Mutiara Effendi, and 2)Eko Wahyudi

1)Center For Geological Survey, Geological Agency, Ministry of Energy and Mineral

Resources

Jl. Doponegoro No.57 Bandung 40122, Indonesia

2) Bappeda Kabupaten Merangin

Jl. Jend. Sudirman No. 01 Bangko, Provinsi Jambi, Indonesia

*email : asep.rohiman@esdm.go.id

Abstract

The Mt.Masurai is one of the volcanoes in Jambi, Indonesia. But, the literature about The

Mt.Masurai is still limited until now. The study of the volcano is important as early

detection of natural disasters, such as volcano eruption and earthquake. Through

comprehensive research, the eruption period of the volcanoes can be predicted and

maximum precaution can be planned to minimize disaster victims. In this work, we reported

the study of The Mt.Masurai"s geochemical rocks. A total of 120 rock samples were

characterized using XRF ARL 9900 for the major elements. Then, the trace elements and

rare earth metals were characterized using ICP-MS. Paleosol and carbon samples were

dated using carbon dating instruments. Based on the results, we obtained a type of rocks

from the geochemical classification are basalt, basaltic-andesite, andesite, dacite, and

rhyolite. The rocks spread from south to north of the Mt.Masurai"s Caldera. The age of the

Mt.Masurai"s north rocks is 29 ka BP while the age of the Mt. Masurai"s southern rocks is

17.7 ka BP. The Mt.Masurai eruption has undergone two eruption period until now.

Keywords: The Mt. Masurai"s Caldera, Geochemistry, volcanoes, Jambi, major

elements, trace elements

Topic: Earth and Planetary Sciences

Book of Abstracts

47 29-31 August 2017

[ABS-139]

Optimalization of ultrasonic tomography method using robotic instrument

Fatkhan, Tedy Setiawan, Fernando Lawrens

Program Studi Teknik Geofisika, FTTM, Institut Teknologi Bandung

Abstract

Ultrasonic tomography is one of many non-destructive methods to image a rock by

measuring wave velocities (P or S-wave). Some applications of ultrasonic tomography

include research for seismic anisotropy, rock physics, shale gas etc. As we know that a

conventional method are still employed to measure wave velocities in ultrasonic

tomography. The conventional method measures a rock manually that it is often difficult

and sometime takes quite long time. One of alternatives to cope with the problem is to make

a robotic instrument. The robotic instrument is made of microcontroller and stepper motor.

The microcontroller and stepper motor control the position of ultrasonic transducer while

measurement of the rock sample. The robotic instrument is not only able to measure but

also have feedback control. As a result, measured data can be more accurate and precise

than those of the conventional method. Several rock samples are used for testing

measurements using a MSIRT (Modified Simultaneous Iterative Reconstruction

Technique) method. Comparing results include error measurements that are shown in graph

and table. Results show that using the robotic instrument can enhance quality of data and

reduce error up to 50%. By using the conventional method percentage of errors ranges from

0.23% to 19.71%; whilst using the robotic instrument becomes 0.05% to 7.86.

Keywords: Ultrasonic tomography, velocity inversion, robotic instrument

Topic: Earth and Planetary Sciences

Book of Abstracts

48 29-31 August 2017

[ABS-140]

Identification of Structural Trap of Hydrocarbon Reservoir below The Layers of

Volcanic Rocks using Audio-Magnetotelluric Method in Majalengka Region

Muhammad Thowwafi Alfiansyah (a), Supriyanto (a)

a) Department of Physics, FMIPA Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia

Abstract

Exploration of hydrocarbons beneath the volcanic rock becomes a great challenge to

increase oil and gas reserves in Indonesia. In this study, Audio-Magnetotelluric method is

used for mapping structural trap of hydrocarbon reservoir because the mapping using

seismic waves do not produce good data on the area of volcanic rock. Geophysical surveys

with audio-magnetotelluric method (AMT) is used to determine the condition of the

subsurface based resistivity values and phase values. The raw data in the form of time series

data from the measurement results using the equipment units Phoenix Geophysics. Then

the data is processed further in the form of apparent resistivity and phase curves toward

frequency. Processing data carried out various filtering and correction. The end result is

two-dimensional cross-section of the measurement line AMT. Data from the model AMT

is interpreted in an integrated manner with geological data. The results showed a good

enough relationship between data AMT with geological data. Interpretation of the results

can be seen that there is a fault zone in the area of measurement and bedding known

formations that form a petroleum system. Cinambo Formations act as the parent rock and

hydrocarbon reservoir that led to the migration of the primary in one formation, while

Kaliwangu Formations act as a cover seal rock. Hydrocarbon trap type is structural trap

because there is fault zone in the area of measurement.

Keywords: Hydrocrabon; Inversion; Magnetotelluric; Petroleum; Resistivity

Topic: Earth and Planetary Sciences

Book of Abstracts

49 29-31 August 2017

[ABS-142]

Distribution of Magnetic Susceptibility of Natural Iron Sand in Sarmi Coast Area

Octolia Togibasa 1), Muhammad Akbar 1), Aditya Pratama 2), Satria Bijaksana 2)

1) Department of Physics, University of Cenderawasih, Jayapura, 99358, Indonesia

2) Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung,

50132, Indonesia

Abstract

Iron sand, a raw source of magnetic materials, were known spread in particular area in

Indonesia. However, researcher mostly focused on the iron sand source from western coast

of Sumatera and southern coast of Java while the northern coast of Papua has not been

identified yet. In this study, iron sand samples were collected from the coastal area of Sarmi

in the northern coast of Papua Province encompassing between these geographic positions

1o4752.30S−138o4027.60"E and 1o5757.50S−138o577.60"E. Magnetic susceptibility

measurements on these samples show that some of them, especially from Holmafen beach,

are quite magnetic with mass-specific magnetic susceptibility varies from 0.7 to 4.3 x 10-

5m3kg-1. Iron oxides are expected to be the main magnetic minerals in those iron sand

samples. Distribution of magnetic susceptibility values for all samples will be presented

along with the mineral compositions of several anomalously magnetic samples.

Keywords: magnetic susceptibility,iron sand, Sarmi coast, Papua, Indonesia

Topic: Earth and Planetary Sciences

Book of Abstracts

50 29-31 August 2017

[ABS-143]

Vulcanism and Anomaly of geothermal heat flow in northern of East Java island

Bagus Endar B. Nurhandoko1, Rizal Kurniadi1, M. Rizka Asmara Hadi2, Rio Martha2,

Sri Widowati3

1) Physics Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung

2) Rock Fluid Imaging Lab

3) School of Computing, Telkom University

Abstract

East Java contains present-day active vulcanics arc in the southern part, thrusting fault

surround carbonate mountain of Kendeng zone in the middle part, and Rembang Hills

region in the north.It is usually the high geothermal heat flow surround the volcanic

activity. The present-day active vulcanics arc is in the southern part of East Java. We

collected hundreds subsurface temperature data from various wells: in deep and shallow

wells in these zones including surveyed tens hot springs in the northern part of East Java

islands.Geothermal heat flow is the important parameter in various exploration objects:

hydrocarbon as well as geothermal exploration. Much of the heat flow is created by the

decay of naturally radioactive elements and crust dynamics. The high geothermal heat flow

is often closely linked to vulcanism. The other possibilities of high heat flow may be caused

by several phenomena, i.e.: frictional heating of faults or buried vulcanic?s activity.

The geothermal heat flow can be estimated using temperature gradient and thermal

conductivity of rock. We use a special tool for measuring the gradient of temperatures of

wells. Tens of wells have been measured their gradient temperatures, from southern part to

the northern part of East Java Island. And we collected thermal conductivity of rock in each

formation. In this paper, we present the anomalies of geothermal heat flow including hot

springs in the northern part of East Java island which is very far from the row of active

volcanic in the southern part of East Java. In the north part of East Java, some of vulcanic?s

activity still exist today; there are many hot springs, sulfur pools, and some outcrops of

lahars and lava rock.

Keywords: East Java, Volcanism, Geothermal Heat Flow

Topic: Earth and Planetary Sciences

Book of Abstracts

51 29-31 August 2017

[ABS-148]

Magnetic Characterization of Industrial Dust from Gresik, East Java, Indonesia

Titis Lestyowati, Silvia Jannatul Fajar, Satria Bijaksana

Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung,

40132, Indonesia

Abstract

Industrial dust has been known to be potential health hazard and therefore need to be closely

monitored. However, in heavily industrialized area such as Gresik in East Java, Indonesia

identifying the source of particular dust or differentiating one type of dust to another might

be complicated. In this study, industrial dust in the form of fly ash, cement dust and lime

kiln dust from various industries in Gresik were analyzed for their magnetic properties. The

measurements include magnetic susceptibility, thermomagnetic as well as ARM

(anhysteretic remanent magnetization) decay curves. To complement these measurements,

the samples were also subjected to SEM (scanning electron microscopy), XRD (X-ray

diffraction) and XRF (X-ray Fluorescence) analyses. The results show that each industrial

dust has its own magnetic characteristics. For instance, fly ash has the highest Fe-content

and therefore is the most magnetic. The predominant magnetic mineral is spherule-shaped

magnetite. As magnetic methods are simpler that other types of analyses, they are very

prospective to be used as alternative methods for industrial dust pollution.

Keywords: industrial dust, fly ash, cement dust, lime kiln dust, magnetic parameters.

Topic: Earth and Planetary Sciences

Book of Abstracts

52 29-31 August 2017

[ABS-149]

Magnetic characterization of pyroclastic density current (PDC) of the AD 1257

eruption of Mt. Samalas, Lombok, Indonesia: preliminary results

Arif Wijaya, Silvia Jannatul Fajar, Satria Bijaksana

Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung,

40132, Indonesia

Abstract

The 1257 AD Mt. Samalas eruption (Lombok, Indonesia) is one of the major volcanic

eruption that cause global climate change and ejected thick layers (50 m) of pyroclastic

density current (PDC). In this study, this PDC deposits from two different locations, namely

Luk and Jugil, in northern coast of Lombok were subjected to series of magnetic

measurements that include mass-specific magnetic susceptibility, isothermal remanent

magnetization (IRM) saturation, anhysteretic remanent magnetization (ARM) decay as

well as hysteresis parameter. Prior to magnetic measurements PDC samples were sieved

through to divide the samples in five different grain sizes, i.e., clay, silt, fine sand, coarse

sand and granule. Magnetic measurements were carried out for each grain size. The results

show that the predominant magnetic mineral in all samples is PSD (pseudo-single domain)

and MD (multi domain) magnetite. However, the mass specific magnetic susceptibility of

clay size samples from Luk (~ 501 ? 10&#8722;8 m3/kg) differ significantly from that of

Jugil (~ 848 ? 10&#8722;8 m3/kg) suggesting that although the deposits from Luk and

Jugil were of the same sources, they likely to came from different eruption events. So far,

the concentration dependent magnetic parameter, i.e., mass-specific magnetic susceptibility

is still the best parameter to identified PDC deposits of Mt. Samalas based on their eruptive

events.

Keywords: pyroclastic density current, mass-specific magnetic susceptibility, Mt.

Samalas, Lombok, Indonesia

Topic: Earth and Planetary Sciences

Book of Abstracts

53 29-31 August 2017

[ABS-150]

A comparative Study of Simulated Annealing and Genetic Algorithm method in

Bayesian framework to the Gravity data inversion

adam sukma putra, Sukono, Wahyu Srigutomo

Universitas Padjadjaran

Institut Teknologi Bandung

Abstract

The use of modern optimization method in geophysical inversion has effectively given a

robust global solution in its application to solve a complex non-linearity problem. Here, we

tested two artificial intelligent-based methods, the simulated annealing and the genetic

algorithm to the gravity data. Using predicted anomalies geometries, these methods are

addressed to invert a synthetical gravity data extracted from grav2d open source.

Differences between these methods are observed in both single parameter inversion and

simultaneous multi parameter inversion to evaluate the speed of computing and the use of

Space in memory. The result give us an idea that the genetic algorithm are slower than the

simulated annealing in solving a simple inversion problem (small data set and less

parameter to be inverse) but efficient in a large data set. meanwhile, the simulated annealing

faced some problem in locating a global minima of the misfit function for the large data. in

the latter case, we simulated the methods in the bayesian framework to see the distribution

of posterior probability of the parameters.

Keywords: geophysical inversion problem, gravity method, simulated annealing, genetic

algorithm, bayesian distribution

Topic: Earth and Planetary Sciences

Book of Abstracts

54 29-31 August 2017

[ABS-152]

The Physical Mechanisms of Geothermal Reservoir During Hydraulic Injection

Through Microearthquake Tomography

Kana A. Natania(a),David P. Sahara(b), Andri D. Nugraha(b) , Irvan Ramadhan(c)

(a)Undergraduate program of the Geophysical Engineering, Institut Teknologi Bandung,

Ganeca 10, Bandung, Jawa Barat, Indonesia

(b)Global Geophysics research group, Institut Teknologi Bandung, Ganeca 10, Bandung,

Jawa Barat, Indonesia

(c)PT. Supreme Energy, Menara Sentraya floor 23th, Jakarta, Indonesia

Abstract

Understanding the physical mechanisms which are involved during hydraulic stimulation

is the key parameter to estimate the fluid flow and permeability increase within the

geothermal reservoir. An attempt to infer the mechanical behavior of the XO geothermal

reservoir during injection is performed in this study. XO geothermal field is located in

Indonesia and is a volcanic type geothermal. In this geothermal field, several geophysical

data acquisition such as microseismic and magnetotelluric method has been performed. As

we know, microseismic is a key method for monitoring the percolation of the fluid within

reservoir during the injection activity. The recorded microearthquakes can provide

important information. In this study, we aim to determine the 3D seismic velocity structure

of the XO geothermal reservoir using microseismic tomography as well as analyze its

mechanical changes due to hydraulic injection using the evolution of the microseismicity.

The authors use the microseismic data from 13 and 16 stations deployed before and after

the injection, respectively. A total of 2.827 microseismic events were recorded from 2010

to 2013, in which only 135 microearthquakes were recorded before injection and

significantly increased to 2,692 events after hydraulic fracturing. Therefore, it can be

concluded that the injection significantly alter the mechanical state within the reservoir. To

analyze the mechanical behavior of the reservoir, first the hypocenter location accuracy

must improved by using a cross correlation master technique. Then hypocenter relocation

as well as the velocity structure is produced using TomoDD software. We use tomographic

double difference inversion to determine the structure of Vp, Vs and the ratio Vp /Vs. The

results of the 3D velocity model together with the microseismic propagation can be used to

analyze the changes in mechanical behaviour that occur in the reservoir during and after

the hydraulic injection.

Keywords: Geothermal, Microseismic , TomoDD, Master event cross correlation

Topic: Earth and Planetary Sciences

Book of Abstracts

55 29-31 August 2017

[ABS-153]

Magnetic characterization and heavy metals pollutions of sediments in Citarum

River, Indonesia

Sudarningsih, Hana Aliyah, Silvia Jannatul Fajar, Satria Bijaksana

Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung,

40132, Indonesia

Abstract

Magnetic methods have been successfully used for pollution detection and mapping in

riverine environment. These methods are considered faster and easier compared to

conventional analytical methods. In this study, sediment samples from Citarum River, the

largest river system in West Java Province and main water supply for more than 10 million

people, were measured for their magnetic characteristics and heavy metals content to test

the effectiveness of magnetic methods in detecting heavy metals pollution. Magnetic

measurements include measurements of magnetic susceptibility (MS), isothermal remanent

magnetization (IRM) saturation, and anhysteretic remanent magnetization (ARM) decay.

The results show that mass-specific MS values tend to decrease from upstream to

downstream, from 1127.3 to 432.43 ? 10&#8722;8m3kg&#8315;?. In all samples, the

dominant magnetic mineral is found to be magnetite based on the IRM saturation field. The

magnetic grains are predominantly multi domain (MD). Geochemical analyses showed that

all water and sediment samples contain Fe, Cd, Co, Ni, Pb, Zn, As, Hg, and Mn that are

higher than the safety threshold. Cu content (both in water and sediment) and Ag content

(in sediment), however, are still below safety threshold. The heavy metals content varies

irregularly in sediment samples although a negative correlation is found between heavy

metals contents and magnetic parameters.

Keywords: magnetic methods, heavy metals, sediment, Citarum River

Topic: Earth and Planetary Sciences

Book of Abstracts

56 29-31 August 2017

[ABS-154]

Investigation of Mesoscale Convective Systems over Indonesian Maritime Continent

using Geostationary Meteorological Satellite

Y Norman(1,2*), NJ Trilaksono(3,4)

1) Graduate Master Program of Earth Science, Institut Teknologi Bandung, Indonesia

2) Meteorological, Climatological, and Geophysical Agency, Indonesia

3) Atmospheric Science Research Group, Institut Teknologi Bandung, Indonesia

4) Weather and Climate Prediction Laboratory, Indonesia

Abstract

Variation of Mesoscale Convective Systems (MCSs) over Indonesian Maritime Continent

(IMC) for 5 years in 2010-2014 were investigated using implementation of graph theory

with hourly product from geostationary meteorological satellite infrared brightness

temperature and Tropical Rainfall Measuring Mission (TRMM) precipitation data.

Variations of MCSs are analyzed based on six criteria of convective cloud organization

derived from area, duration and eccentricity characteristics. The result shows that monthly

average of six types of MCSs in the IMC region forms a bimodal pattern with two peaks at

March to May (MAM) and September to November (SON). A statistical analysis exhibit a

maximum frequency occurrence of six types of MCSs in the region of equatorial rainfall

type, which amount of events up to 40% or 787 times/year, where the greatest contribution

concentrated in the Indian Ocean, Sumatra, Kalimantan, Sulawesi and Papua. Diurnal

pattern of MCSs in the IMC shows maturity time of MCSs mostly occurred in the evening

to early morning. The typical occurrence of MCSs in this study is different compared to

United States and China types, whereas IMC has balanced proportion amounts between

linear and circular shape types, while United States and China region were dominated by

linear type.

Keywords: MCSs; IMC; graph theory implementation; brightness temperature

Topic: Earth and Planetary Sciences

Book of Abstracts

57 29-31 August 2017

[ABS-155]

The Recent Small Earthquakes around Lembang Fault, West Java, Bandung,

Indonesia

A D Nugraha1, P Supendi2, B S Prabowo3, S Rosalia3, Erlangga3, Y M Husni3, S

Widiyantoro1, N T Puspito1, A Priyono1

1Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering

Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia

2Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG),

Indonesia

3Geophysical Engineering, Faculty of Mining and Petroleum Engineering

Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia

Abstract

Abstract. On May 14th and 18th, 2017 felt earthquakes were occurred around western part

of Lembang area, Bandung, West Java, Indonesia with magnitude of M2.8 and M2.9,

respectively. The first earthquake (M2.8) was felt by some people around epicenter area.

We determined the earthquake location through re-picking of P-and S-wave arrival time

recording by Indonesian Agency for Meteorological, Climatological and Geophysics

(BMKG), network. Earthquake location was determined by using Hypoellipse code that

employs a single event determination method. We also conducted focal mechanism

analysis to estimate the type of fault slip. The results indicate the hypocenters location in

the north and south of the western part of Lembang fault with the focus depth of ~ 5 km,

respectively. Source mechanism solutions showed the type of earthquake is strike-slip fault.

The occurrence of two recent small earthquakes need more attention about the activity of

Lembang fault. The destructive earthquake related to displacement of the fault occurred on

August 28, 2011 (M3.3) located at the western end of the Lembang fault. For further study,

we have been deploying 6 temporary seismometers stations around Lembang fault in

attempt to detect small events and to delineate subsurface seismic structure by applying

tomography method.

Keywords: Earthquake, Lembang fault, BMKG

Topic: Earth and Planetary Sciences

Book of Abstracts

58 29-31 August 2017

[ABS-157]

Testing the Effectiveness of Mechanical Magnetic Extraction in Riverine and

Lacustrine Sediments

Gesti Cita Novala, Sudarningsih, Kartika Hajar Kirana, Silvia Jannatul Fajar,

Mariyanto, Satria Bijaksana

Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung,

40132, Indonesia

Abstract

Rock magnetic studies often require analyzing extracted magnetic grains so that the

mineralogy, granulometry, and concentration of magnetic minerals could be determined

accurately. Magnetic extraction is often cumbersome, tedious, and subjective as this

process is carried out manually by placing strong magnet inside sediment slurries.

Moreover, the magnetic mineral content in sediment is generally much less than 1% of its

weight. In this study, the effectiveness of mechanical magnetic extraction using magnetic

stirrer is tested for riverine and lacustrine sediments. The samples are sediments from

Brantas River in East Java and from Citarum River in West Java as well as surface sediment

from Lake Towuti in South Sulawesi. The effectiveness tests were carried out by comparing

the magnetic properties of bulk samples with that of extracted magnetic grains. Additional

tests were also carried out in the form of SEM (scanning electron microscopy) and XRD

(X-Ray diffraction) analyses. Apart from the expected higher values of mass-specific

magnetic susceptibility, the extracted samples also tend to have larger magnetic grains than

that of bulk samples. The predominant magnetic mineral in bulk and extracted samples is

magnetite, although other type of magnetic minerals might be present in extracted samples.

The presence of SP (superparamagnetic) grains in extracted samples is also negligible

unlike that in bulk samples. SEM and XRD analyses support these findings. Magnetite

grains could easily be identified in extracted samples.

Keywords: magnetic extraction, magnetic stirrer, river sediment, lake sediment

Topic: Earth and Planetary Sciences

Book of Abstracts

59 29-31 August 2017

[ABS-159]

Site Classification in Surakarta City Based on Vs30 of Multichannel Analysis of

Surface Wave Method

Muhammad Fachrul Rozi Kurniawan, Sorja Koesuma, Budi Legowo

Physics Departement, Faculty of Mathematics and Natural Sciences, Universitas Sebelas

Maret, Surakarta, Indonesia

Abstract

The Multichannel Analysis of Surface Waves (MASW) method is one of the non-invasive

methods that can be used to determine the shear wave velocity. The shear wave velocity

can be obtained from the inversion of dispersion curve of the Rayleigh wave. The surveys

has done at 10 sites in Surakarta city. Active MASW measurements are performed by using

the P.A.S.I. Seismograph Mod. 16S24-P. Geophone used as many as 24 channels with a

frequency 4.5 Hz of the vertical component and 10 lbs hammer as active source. Every

receiver spread is given once shot point at 5-10 m from first geophone . The measurement

data is transformed to frequency domain by using Fast Fourier Transform (FFT) algorithm.

The average shear wave velocity up to 30 m depth is referred as Vs30. The results shows

that Vs30 of Surakarta city varies between 250-470 m/s. Based on the National Earthquake

Hazard Reduction Program (NEHRP) classification, this values is classified as C and D

class. The highest Vs30 values at the southwest (Laweyan site) is 464 m/s and the northern

(Banjarsari site) is 434 m/s classified as site class C. Meanwhile, the lowest Vs30 values at

the northwest and southeast (Serengan and Pasar Kliwon sites) classified as D class.

Keywords: MASW, non-invasive, shear wave, dispersion, vertical component

Topic: Earth and Planetary Sciences

Book of Abstracts

60 29-31 August 2017

[ABS-160]

Space-Time Spectral Analysis of 2-D Signal on the Globe Using Spherical

Harmonics and Wavelet Transform Methods

Sefri Ayuliana, Faiz R. Fajary, Tri W. Hadi

Program of Earth Sciences, Bandung Institute of Technology

Abstract

In this research, a method to analyze wave-number and frequency spectra from time series

of global 2-D geophysical data has been developed. Spherical Harmonics (SH) transform

method is used to analyze wave structures in both longitude and latitude, while the temporal

evolution of frequency content in the data is analyzed using complex wavelet transform.

The frequency spectra of longitudinally propagating waves are separated into their

westward- and eastward components by wavelet transforms of the corresponding to

complex SH coefficients and their complex conjugate. The method was applied to analyze

daily OLR (Outgoing Long-wave Radiation) data of 27 years record (1987-2013) as a proxy

for large-scale convective pattern. It proved that the method enable us to identify the

existence of various wave structures representing the convectively coupled planetary

atmospheric waves. As SH and wavelet transform methods are generic tools for signal

analysis, our space-time spectral analysis method should also be applicable to other

geophysical data whose properties are characterized with embedded planetary scale waves.

Keywords: space-time spectral analysis, spherical harmonics, wavelet analysis

Topic: Earth and Planetary Sciences

Book of Abstracts

61 29-31 August 2017

[ABS-161]

Modeling the behavior of CO2 injection in a sand reservoir

Cahli Suhendi*, David P.Sahara**, Fatkhan***, Mohammad Rachmat Sule***

*Geophysical engineering, Faculty of Petroleum and Mining Engineering, Institut

Teknologi Bandung

** Global Geophysics Research Group, Faculty of Petroleum and Mining Engineering,

Institut Teknologi Bandung

*** Seismology, Exploration and Engineering Research Group, Faculty of Petroleum and

Mining Engineering, Institut Teknologi Bandung

Abstract

Injection CO2 into subsurface formation changes in-situ pore pressure and temperature

which in turn alters the effective stress condition. An attempt to analyze the geomechanical

responses induced by CO2 fluid injection in a sand reservoir is performed on this study.

We develop coupling program code that linking two existing and proven programs,

TOUGH2 and FLAC3D. TOUGH2 is a numerical simulator that solves fluid-flow and

transport equation, whilst FLAC3D is a numerical code to simulate geomechanical

analysis. Fluid ? flow and geomechanical equations are sequentially solved by using finite

difference methods. The coupling method used in this paper is two ? way coupling where

the coupling parameters are transferred from each code in certain time step. Simulation

parameters are, then, extracted from geophysical and geological data conducted in the study

area. The sensitivity test is performed by varying the injection and reservoir geomechanical

parameters. The distribution of the injected CO2 plumme and the possible rock deformation

induced by injection is shown for several injection case. Furthermore, a correlation between

the injection strategy and the reservoir stability is drawn from the results of this study. This

model could be applied to other field and serve as a basis information for the injection

strategy.

Keywords: CO2, Coupling, FLAC3D, TOUGH2

Topic: Earth and Planetary Sciences

Book of Abstracts

62 29-31 August 2017

[ABS-162]

3D Vp, Vs, And Vp/Vs Microseismic Tomography Imaging On "MA" Geothermal

Field: Fluid Saturation Condition Estimation

Donny Satrio Mahartha (a*), Andri Dian Nugraha (b), Mohammad Rachmat Sule (c)

a) Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut

Teknologi Bandung, Jl. Ganeca 10, Bandung 40132, Jawa Barat, Indonesia

*donny.satrio023@gmail.com

b) Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institut Teknologi Bandung, Jl. Ganeca 10, Bandung 40132, Jawa Barat, Indonesia

c) Exploration and Engineering Seismology Research Group, Faculty of Mining and

Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganeca 10, Bandung 40132, Jawa

Barat, Indonesia

Abstract

"MA" Geothermal Field is located 35 km south of Bandung, West Java. This field lies on

andesitic volcano highlands formed in the center of Sunda Arc. "MA" Geothermal Field

has transition system between vapor-dominated and liquid-dominated.The reservoir

characteristic has been changed over time caused by injection and production operation.

Micro earthquake activites in geothermal field may relate to changes in stress and fractures

occurrence. In this study, we use P-and S-wave arrival time of microearthquake and update

these picked phases using waveform cross correlation as input for tomography inversion to

delineate 3D seismic velocity (Vp, Vs, Vp/Vs ratio) around the reservoir and to detect steam

and/or fluid zone. In this research, 877 microearthquakes data recorded in 15 seismometers

from January-November 2016 will be used. We use VELEST software to get hypocenters

relocation and 1-D velocity adjustment. The updated data from this software then becomes

input for SIMULPS12. In this software, 308 data with good coverage are used. The

preeliminary results are one-dimension seismic velocity structure and hypocenters around

the reservoir. Hypocenters distribution indicates that the micro earthquake activities in this

field are caused by geothermal activity. The results will be presented in more details during

the meeting.

Keywords: Micro earthquake; Relocation; Tomography; Waveform cross correlation

Topic: Earth and Planetary Sciences

Book of Abstracts

63 29-31 August 2017

[ABS-163]

The pattern of local stress heterogeneities along the central part of the Great

Sumatran fault

David P. Sahara, Sri Widiyantoro

Geophysical research group, Faculty of Petroleum and Mining Engineering, Institut

Teknologi Bandung, Jl. Ganesha 10 Bandung 40132

Abstract

Based on world stress map, the in-situ stress along the Great Sumatran fault is assumed to

be strike-slip, and the maximum principal stress SHmax is oriented N15?E. However, this

estimation neglects the local impact of fault branching and material heterogeneity which

might have a significant impact on the stress heterogeneity. Despite its importance, very

few studies have been performed on this issue in the Sumatran fault. We intend to analyze

significant variations in the direction of SHmax along the the Great Sumatran fault.

Waveform data from a join seismic network of 19 stations deployed by the

GeoForschungZentrum (GFZ) Germany and the Indonesian Agency for Meteorology,

Climatology, and Geophysics (BMKG) is used. The seismic network had a full coverage

of the Sumatran fault and recorded the seismicity from 1 January 2010 to 31 December

2015. A joint inversion of the principal stress and the fault stability is performed. As a

results, a correlation between the fault branching and the local stress heterogeneity in the

Sumatran fault is expected to be drawn from the results of this study. We hypothesize that

the local stress heterogeneity is also affected by the mechanism of the fault, i.e. creeping or

locked section of the fault.

Keywords: fault, heterogeneity, Sumatran

Topic: Earth and Planetary Sciences

Book of Abstracts

64 29-31 August 2017

[ABS-164]

Stress drop, earthquake aftershocks and regional stress relation base on static

Coulomb failure stress

D Kusumawati1*, A D Nugraha2, David P Sahara2 and N T Puspito2

1Earth Science, Faculty of Earth Sciences and Technology, Institut Teknologi Bandung,

Indonesia

2Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institut Teknologi Bandung, Indonesia

*dianksurya@gmail.com

Abstract

Coulomb failure criterion has been applied widely in the scope of earthquake science to

explain earthquake interactions base on stress change, with the well-known method named

Coulomb failure stress change (△ CFS). Preceding studies have showed: increase △CFS,

depicted as positive stress lobes, has correlation with occurrence of following events.

However in the calculation process, ratio between regional stress and earthquake stress drop

would affect stress distribution. Based on preceding researches, earthquake stress drop with

similar magnitude to regional stress, would give results positive stress lobes along and at

the base of the fault. Those stress distribution, would then help explaining events interaction

and mechanism of earthquake. This work carries out synthetic modeling of static △CFS

upon varying earthquake stress drop and regional stress using COULOMB3.3. In accord

with preceding studies, the results show positive △CFS along the fault when stress drop is

comparable to regional stress. And yet, positive △ CFS would take place at the top and at

the base of the fault, expanding to the center of the fault -where the hypocenter is assumed-

as the stress drop reaching regional stress in magnitude. This matter might explain

separated clusters of aftershocks in different depth for some cases: such as M6.5 2016 Pidie

Jaya aftershocks, which we have found.

Keywords: mainshock-aftershock interaction, static Coulomb failure stress change, stress

drop, synthetic Coulomb failure stress model.

Topic: Earth and Planetary Sciences

Book of Abstracts

65 29-31 August 2017

[ABS-166]

Utilization of Double-Difference Tomography for Geothermal Exploration: 3D

Velocity Structure Interpretation and Fluid Type Determination

Arifa Hijriani (a*), David P. Sahara (b), Andri D. Nugraha (b), Irvan Ramadhan (c),

Ridwan P. Sidik (c)

a) Geophysical Engineering, Institut Teknologi Bandung, Ganeca 10, Bandung 40132,

Jawa Barat, Indonesia

*arifahijriani@gmail.com

b) Global Geophysics Research Group, Institut Teknologi Bandung, Ganeca 10, Bandung

40132, Jawa Barat, Indonesia

c) PT. Supreme Energy, Menara Sentraya floor 23th, Jakarta, Indonesia

Abstract

Geothermal surface exploration entails a multi-geoscientific process, which is aimed to

define the geometry and characteristics of the geothermal reservoir prior to drilling. Lately,

microseismic event monitoring is becoming a standard procedure in inferring the structure

of the potential geothermal reservoir. However, a good coverage of seismic station and

abundant seismic events must be fulfilled in order to map the subsurface structure. Taking

advantage of the well-designed seismic station deployed at the ARD geothermal field prior

its first drilling, a study of microearthquake tomography for 3D reservoir structure

delineation is performed in this field. A seismic network of 26 stations was set up for more

than eight months from August 2011 within 20 km radius from the center of the expected-

reservoir. There are 637 local events were detected and located, which is very high number

of seismicity for a region that is not yet under geothermal development. The purpose of this

study is to construct 3D seismic velocity structure using double-difference tomography and

to infer fluid properties, i.e. steam and brine, from the ratio of the P- and S-wave velocity.

An advance waveform cross-correlation technique is applied to improve the quality of the

arrival time picking. Double-difference tomography is used due to its ability to reduce

uncertainties of the model associated with picking and velocity structure. As a result, a

clearer image of the three-dimensional P and S velocity structure and ration within the

geothermal reservoir is expected. This image could be a key information for defining the

strategy in order to further develop the geothermal field.

Keywords: Microseismic, Double-Difference Tomography, Waveform Cross-

Correlation, Exploration

Topic: Earth and Planetary Sciences

Book of Abstracts

66 29-31 August 2017

[ABS-167]

3D SEISMIC TOMOGRAPHY TO IMAGE THE SUBSURFACE STRUCTURE

OF IY GEOTHERMAL FIELD USING DOUBLE DIFFERENCE METHOD AND

WAVEFORM CROSS-CORRELATION: PRELIMINARY RESULTS

Indriani Yunitasari1, Andri Dian Nugraha2, Mohammad Rachmat Sule3

1Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut

Teknologi Bandung, Jl. Ganeca 10, Bandung 40132, Jawa Barat, Indonesia

2Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institut Teknologi Bandung, Jl. Ganeca 10, Bandung 40132, Jawa Barat, Indonesia

3Exploration and Engineering Seismology Research Group, Institut Teknologi Bandung,

Jl. Ganeca 10, Bandung 40132, Jawa Barat, Indonesia

Abstract

IY Geothermal Field is located in southern part of Bandung, West Java, Indonesia. This

geothermal field is dominated by liquid and vapour conditions. In this study, we used

microearthquake waveform and catalog data around the geothermal field to determine 3-D

seismic velocity through tomography inversion. The data was recorded by 15 stations

around IY geothermal field area. During ten months of recording, there were 926

microearthquake events have been identified. We conducted subsurface 3D seismic

velocity by using double difference tomographic (tomoDD) in order to delineate structure

around the reservoir. To improve the distribution of initial hypocenter from data catalog,

we relocated the hypocenters using double difference method and using waveform cross-

correlation to enhance P-and S-wave arrival times as input for tomographic inversion. We

updated data catalog and applying threshold of coefficient value that we used is around

0.732-0.822, depends on updated waveforms from cross-correlation method. From 15

stations, there are two stations used threshold value above 0.8 for P-wave and two stations

for S-wave, whereas other stations used value of 0.732-0.8. The ongoing process, is to

determine seismic velocity structure by applying tomographic inversion. We also know the

clustering events near well in geothermal field. The result shows the relocated hypocenters

with 3-D velocity model to determine geothermal zones, such as brine and steam, depends

on the value of Vp, Vs, and Vp/Vs ratio.

Keywords: microearthquake, hypocenter, double difference, waveform cross-correlation

Topic: Earth and Planetary Sciences

Book of Abstracts

67 29-31 August 2017

[ABS-168]

Seismic Tomography under Mt. Sinabung Using Waveform Cross-Correlation

Arrival Time Data from October 2010 - December 2011: Preliminary Results

Zakaria S. Laksmana (a*), Andri Dian Nugraha(b), Sri Hidayati (c)

a) Geophysical Engineering, Institut Teknologi Bandung, Jl. Ganeca 10, Bandung 40132,

West Java, Indonesia

*nivalyx@gmail.com

b) Global Geophysics Research Group, Institut Teknologi Bandung, Jl. Ganeca 10,

Bandung 40132, West Java, Indonesia

c) Center of Volcanology and Geological Hazard Mitigation, Jl. Diponegoro 57, Bandung

40122, Indonesia

Abstract

Sinabung Volcano is an active stratovolcano located in the North Sumatera, Indonesia with

a frequent volcanic-related activity over the past years. Based on seismicity monitoring

which was conducted from October 2010 ? December 2011, a high frequency of

microseismic events (especially volcano-tectonic events) was observed in which our data

catalog records a total of more than 400 volcano-tectonic events spanning over this period.

Throughout our study, so far we have observed that Sinabung Volcano?s volcano-tectonic

events were concentrated northeast from the volcano?s peak, with a cluster of events being

observed 2 kilometers beneath sea level. In regards to this we have also been conducting a

waveform cross-correlation process in order to improve the data catalog?s picking results

in order to relocate and improve the events? hypocentral location so that it can be more

accurately represented. The updated data are then used as an input for a delay-time

tomography by using SIMULPS method, in which the output tomogram is then interpreted

according to Sinabung Volcano?s properties so that we can better understand the evolution

of Sinabung Volcano?s sub-surface features over the aforementioned period in order to get

a better understanding of Sinabung Volcano?s characteristics for future disaster mitigation

purposes.

Keywords: microseismic tomography, waveform cross-correlation, Sinabung Volcano

Topic: Earth and Planetary Sciences

Book of Abstracts

68 29-31 August 2017

[ABS-169]

3D Seismic Velocity around Source Region of Mw 6.5, 2016 Pidie Jaya Earthquake

from Double Difference Tomography and Waveform Cross Correlation:

Preliminary Results

1Rianty Kusuma Dewi, 1Andri Dian Nugraha, 2Rexha Verdhora Ry

1.Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut

Teknologi Bandung, Jalan Ganesa No 10, Bandung, 40132

2.Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institut Teknologi Bandung, Jalan Ganesa No 10, Bandung, 40132

Abstract

Pidie Jaya earthquake occured on 7th December 2016. It causes a lot of damage and 102

victims reported by National Disaster Management Authority (BNPB). According to

Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG), the main

shock happened at 05:03:36 WIB in 5.42 north latitude and 96.24 east longitude with

magnitude of 6.5 (depth of 15 km). A week after, research collaboration of ITB, Unsyiah,

BMKG and GFZ Postdam Germany installed 9 seismometers around Pidie Jaya since 14th

December 2017 to 16th January 2017. It has been identified that there were 302 of

aftershock events. In this study, we have been conducting (i) determination of location of

hypocenter using probabilistic grid searching method with NLLoc program, (ii) updating

of 1D seismic velocity model using Joint Hypocenter-Velocity Determination (JHD) with

Velest program, (iii) enhance of picked of P-and S-wave arrival time using Waveform

Cross Correlation Method, and (iv) determining 3D Vp, Vs, and Vp/Vs structure in the

region using tomography double difference method with program TomoDD. Tomography

double-difference inversion gives the clearest image in 15 km depth. It has been identified

the existence of fault with strike N45SE. The angle of the dip become steeper from north

east (10 degree) to south west (40 degree). The structure of fault can be determined by the

existence of the contrast between low velocity anomaly (red) dan high velocity anomaly

(blue). The aftershock most common happened in low velocity zone (red color).

Keywords: hypocenter, tomography double-difference, cross correlation, probabilistic

grid searching, joint hypocenter determination.

Topic: Earth and Planetary Sciences

Book of Abstracts

69 29-31 August 2017

[ABS-170]

Implementation of GMSTech - a New Practical Software for Microseismic Data

Processing - for Estimating Event Source Parameters

Rexha V Ry (1*), D P Sahara (1), M Rohaman (2), C Suhendi (2), K H Palgunadi (2), S

Widiyantoro (1), A D Nugraha (1), T Yudistira (1), B S Prabowo (2), B Mujihardi (3)

1 Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institut Teknologi Bandung

2 Volcanology and Geothermal Laboratory, Geophysical Engineering, Faculty of Mining

and Petroleum Engineering, Institut Teknologi Bandung

3 Pertamina UTC, Indonesia

(*corresponding email: rexha.vry@gmail.com)

Abstract

Nowadays, microseismic monitoring has been utilized widely to detect fractures and

permeability zones in many geophysics applications for exploration: geothermal resources,

unconventional hydrocarbon resources, and many else. It is required to process

microseismic data effectively and efficiently, however, integrated software for

microseismic data processing is not available yet. We developed GMSTech (Ganesha

Microseismic Technology), a Windows C# language based software which integrates

complete functions and modules for microseismic characterization. In this paper, we

discuss an implementation of the two modules which can be used for calculating

microseismic event source parameters: magnitude and focal mechanism, using a data

recorded in the certain geothermal field. For computing the magnitude, we implemented

Brune model which the algorithm includes spectral fitting. For estimating the focal

mechanism, we developed a new simple algorithm based on grid-searching, clustering, and

statistical analysis. In the results, our modules have successfully calculated the source

parameters and it is reliable for geothermal exploration. However, several factors such as

coverage and number of stations may influence the results significantly, and moreover, the

computation time still needs improvements. Nevertheless, the GMSTech shows a

remarkable performance and it is more practical to be utilized for industry purposed if

compared to other software.

Keywords: microseismic processing, event source parameters, magnitudes, focal

mechanisms, geothermal exploration, GMSTech

Topic: Earth and Planetary Sciences

Book of Abstracts

70 29-31 August 2017

[ABS-173]

Progresses on Magnetorotational Instability

Himawan Winarto

Princeton University

Abstract

I will describe the current numerical and experimental approaches for magnetorotational

instability which is believed to be the driving mechanism of energy transport in magnetized

accretion disk. The incorporation of pressure tensor on hybrid-MHD simulation shows

interesting properties in the kinetic regime. This can be investigated further by the

laboratory MRI experiment using liquid galinstan alloy (GaInSn). Unlike observations of

astrophysical plasma, laboratory astrophysical experiments can be used to investigate MRI

over broad range of parameters with direct diagnostics.

Keywords: magnetorotational instability, mri, laboratory astrophysics

Topic: Earth and Planetary Sciences

Book of Abstracts

71 29-31 August 2017

[ABS-176]

Western Java Ambient Noise Tomography: Preliminary Result

Shindy Rosalia(a*), Tedi Yudistira (b), Sri Widiyantoro (b), Phil R. Cummins (c), Andri

D. Nugraha (b)

(a) Graduate Program of Geophysical Engineering, Faculty of Mining and Petroleum

Engineering, Institute of Technology Bandung

*shindy.rosalia31@gmail.com

(b) Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering,

Institute of Technology Bandung, Indonesia.

(c) Research School of Earth Sciences, Australian National University, Canberra, ACT,

Australia.

Abstract

Western Java, Indonesia, has at least three important active faults: the Cimandiri, Lembang,

and Baribis Faults, which pose a great danger for the cities near them. It is crucial to have

a better understanding of shallow crustal structure to delineate active faults and deep basins

in order to support seismic hazard and disaster mitigation efforts in Indonesia. In this study,

we perform ambient seismic noise tomography which can give better resolution of the

shallow structure beneath western Java. We have deployed a seismometer network in the

western to central Java region through a research collaboration program between Bandung

Institute Technology (ITB) and Australian National University (ANU). We deployed 70

seismometer stations from June to February 2017 to acquire ambient seismic noise data.

As the first stage of the data processing, we will focus on conducting single data preparation

and cross-correlation to retrieve an estimate of Green?s function between station pairs. We

also use the frequency-time analysis technique to obtain dispersion curves to measure the

interstation group velocity. The group velocity is use as an input in tomography inversion

process. Our preliminary result show that the low velocity anomaly associate with sediment

basins and the high velocity anomaly associate with southern mountains.

Keywords: ambient noise tomography; West Java; Greens Function

Topic: Earth and Planetary Sciences

Book of Abstracts

72 29-31 August 2017

[ABS-177]

Investigation on 3D fractal dimension as complexity parameter of fluid flow in 3D

porous media

Ulpa Zein Fawziah (a), Aceng Kurnia Rochmatulloh (a), Selly Feranie (a), Fourier Dzar

Eljabbar Latief (b), Prana F L Tobing (a)

a) Earth and planetary science Physics Department, Indonesian University of Education

Jl. Dr. Setiabudi No 299, Bandung 40154

b) Physics of Earth and Complex Systems, Bandung Institute of Technology, Indonesia

Jl. Ganesha No 10, Bandung 40132

Abstract

3D Fractal dimension as complexcity parameter of fluid flow in 3D porous media is

investigated. The 3D porous media sized 150x150x150 pixels are contructed by randomly

spherical grain radius in the range of 10-20 pixels until reach the same porosity of 15%.

Fractal dimension are obtained by box counting method. The fluid flow in 3D porous media

are obtained by applying Randow walk in three different direction. Tortuosity define as

ratio between the trace ratio between flow path through the connected pores to the porous

media length size in flow direction. As tortuosity increases, the the complexcity of fluid

flow in 3D porous media increases In first sample,tortuosity in x, y, z direction and its 3D

pore fractal dimensiom respectively are 4.48, 2.50, 9.66 with fractal dimension 2.79, In

second sample, tortuosity in x, y, z direction and its 3D fractal dimensiom respectively are

4.64, 12.94, 6.14 with a fractal dimension of 2.87. the third sample, tortuosity in x, y, z

direction and its 3D fractal dimensiom respectively are14.32, 3.65, 8.1 with a fractal

dimension of 2.96. And for the fourth sample, tortuosity in x, y, z direction and its 3D

fractal dimensiom respectively are 14.32, 3.65, 8.1 with a fractal dimension of 2.96. the

average and deviation tortuosity and its fractal dimension for respectively 5,5466667,

3,69726 and 2,79 (first sample); 6,8266667, 2,805928 and 2.83 (second sample);

7,9066667, 4,423046 and 2.87 (third sample); 8,69, 5,359412 and 2.96 (fourth sample).

From these results, we found that average tortuosity and deviation of each direction

increases as pore fractal dimension increases. It indicates that the higher 3D fractal

dimension for 3D porous media the fluid flow on the porous media is more complex and

unisotropic. Based on these result 3D fractal dimension can be considered as both

complexcity and unisotropic degree of fluid flow in 3D porous media.

Keywords: fractal, complexity of fluid flow

Topic: Earth and Planetary Sciences

Book of Abstracts

73 29-31 August 2017

[ABS-180]

Improved Hypocenter Data Catalog around Indonesia Region by using teletomoDD

and 3D Seismic Velocity Model: Preliminary Results

Y H Sinaga(a), S. Rosalia(a), A D Nugraha(b), S Widiyantoro(b), Daryono(c), S

Wiyono(c)

a) Geophysical Engineering, Institut Teknologi Bandung, Ganeca 10, Bandung, Jawa

Barat, Indonesia

b) Global Geophysics Research Group, Institut Teknologi Bandung, Ganeca 10, Bandung,

Jawa Barat, Indonesia

c) Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG),

Indonesia

Abstract

Indonesian tectonic territory is characterized by the collision of many tectonics plates such

as Eurasia, Indo-Australia, Pacific and Philippine where interaction between the plates

result in complex dynamics followed by the high level of seismicity. Availability of denser

seismometers after Aceh-Andaman megathrust earthquake with magnitude 9.3 in 2004 and

Nias earthquake with magnitude 8.6 in 2005, had supported seismicity studies in Indonesia

which one of them is hypocenter relocation. In this study we enhanced hypocenter location

by applying the teleseismic double-difference (teletomoDD) relocation method which

combining the arrival time of P and S waves from the station with local, regional and

teleseismic distance. Earthquakes catalog data are obtained from the Indonesia Agency for

Meteorology, Climatology, and Geophysics (BMKG) for the period of May 2009 to

January 2017. Figuring travel time calculations are using 3D seismic wave velocity model

with grid sizes 10x10 for Indonesian region, while for the outside these region used 1D

velocity model. The preliminary results show some tectonics figures such as slab

subduction and active faults are seen clearly.

Keywords: teletomoDD, Indonesia, hypocenter relocation

Topic: Earth and Planetary Sciences

Book of Abstracts

74 29-31 August 2017

[ABS-187]

Design Of Microtremor Monitoring Tools Using Accelerometer Sensor On Android

Mobile To Determine The Natural Building Frequency In Library Unit (UPT

Perpustakaan) UNS

Rio Riantana, Darsono, Agus Triyono

Physics Department, Faculty of Matehmatics and Natural Sciences,

Sebelas Maret University

Abstract

Design of Microtremor monitoring tools using accelerometer sensor on android phone to

determine the natural frequency of buildings in UPT Perpustakaan UNS has done. The main

sensor for recording microtremor activity is Accelerometer sensor on android phone.

Microtremor activity recording is done on every buildings floor of UPT Perpustakaan UNS

and on the surface of land outside the building. From microtremor activity recording, the

recorded data is sent to the server by telemetry methode. The data stored on the server then

displayed in the graph on the microtremor web monitoring. Microtremor data is processed

with the FFT function to determine the dominant frequency. From the dominant frequency

we find ratio of resonance of soil and building of UPT Perpustakaan UNS. From the

calculation the value of resonance ratio is 69.35 - 94.48% in the NS component and 70.42

- 98.61% in the EW component with low resonance status on each floor of the building.

Keywords: Microtremor, Android, buildings natural frequency, Accelerometer, UPT

Perpustakaan UNS

Topic: Earth and Planetary Sciences

Book of Abstracts

75 29-31 August 2017

[ABS-190]

Modeling fluid propagation in a naturally fractured formation

Fatkhan***, David P.Sahara**, Cahli Suhendi*, Mohammad Rachmat Sule***

*Geophysical engineering, Faculty of Petroleum and Mining Engineering, Institut

Teknologi Bandung

** Global Geophysics Research Group, Faculty of Petroleum and Mining Engineering,

Institut Teknologi Bandung

** Seismology, Exploration and Engineering Research Group, Faculty of Petroleum and

Mining Engineering, Institut Teknologi Bandung

Abstract

Injection activity changes reservoir pore pressure and temperature condition and then alters

the stress condition of the reservoir. Increasing pore pressure from injection leads to a

decrease in effective stress of reservoir rocks and surrounding rocks. It might be

accompanied by increasing porosity, permeability and capillary pressure. It also induces

deformation and failure and surface uplift. This whole process is modeled by coupled

Thermo ? Hydro ? Mechanics (THM) proposed in this study. We develop UI (User

Interface) program that linking two existing and proven programs, TOUGH2 and FLAC3D

and use it to simulate coupled THM of CO2 injection in Gundih Field, as part of CCS Pilot

Project in Indonesia. TOUGH2 is numerical simulator that solves fluid flow and transport

equation. FLAC3D is numerical code to simulate geomechanical analysis. A layered

naturally fractured reservoir is built. A boundary condition representing the typical far field

stress at around 800 m depth is set. A injection scheme of 30 tons CO2 per day for one year

is applied. At this depth CO2 is expected to be in supercritical condition (depending on

hydrostatics pressure and gradient thermal condition). We show that the coupling program

code has successfully simulate CO2 injection into the fractured reservoir.

Keywords: FLAC3D, fractured, THM, reservoir, TOUGH2

Topic: Earth and Planetary Sciences

Book of Abstracts

76 29-31 August 2017

[ABS-194]

The Effect of Earthquake to Stability and Run Out Distance of Landslide During

Rainfall : a case study of landslide prone area in West Java, Indonesia

Cucu Rizkianti (*a), Selly Feranie (b), Adrin Tohari (c)

Universitas Pendidikan Indonesia

Abstract

The effect of earth quake to landslide stability and run out distance on landslide zones in

West Java-Indonesia during rainfall was investigated considering different slope angle. An

earthquake peak ground acceleration 0.3 gal for 20 s is applied on landslide zones under a

rainfall intensity of 10mm/h for 4 hour. In this study, the slope angles of 26o , 33o, 45o,56o,

and 68o are considered. The analysis of the slope stability in the case the safety factor

decreases with the increase slope angle. With the introduction of rainfall and earthquake,

the safety factor of the slope drops below 1.0 one the slope angle higher than 33o. The

calculations of landslide during rainfall and earthquake shows the landslide masses

generated from the slope with an angle of 45o will travel more than those from the slope

with an angle 68o. This is due to the landslide masses from the slope 45o is smaller than

that from the slope of 68o From this study, the earthquake makes the stability of the slope

decreases further. However, the run-out distance of landslide masses due to the

combination of rainfall and earthquake will have no significant different when compared

with that due to rainfall alone.

Keywords: earthquake, rainfall, run-out, safety factor

Topic: Earth and Planetary Sciences

Book of Abstracts

77 29-31 August 2017

[ABS-206]

Structure and Oxidation Resistance of Flame Sprayed Fe-Ni-Al coating

AdlShahida Ismail Datu-Maki1, Ciswandi2, Bambang Hermanto2, Sitti Ahmiatri

Saptari1, Toto Sudiro2

1Physics Department, Science and Technology Faculty, Universitas Islam Negeri Syarif

Hidayatullah Jakarta

2Research Center for Physics, Indonesian Institute of Sciences

Corresponding Author: toto011@lipi.go.id

Abstract

Two types of Fe-Ni-Al coatings as 75Fe-15Ni-10Al and 56Fe-14Ni-30Al were successfully

deposited on the surface of low carbon steel using a flame spray technique. The high

temperature oxidation resistance of coating with and without annealing was evaluated in

air at 800oC for up to 8 cycles. The structure of Fe-Ni-Al coatings before and after cyclic

oxidation test was studied by X-ray diffraction and scanning electron microscope (SEM)

equipped with energy dispersive X-ray spectrometer (EDX). According to the results, the

coating composition strongly affects the oxidation resistance of Fe-Ni-Al coatings. As the

Al content in the coating increases, the oxidation resistance of Fe-Ni-Al coating increases

as well.

Keywords: Fe-Cr-Al, coating, flame spray, structure, oxidation.

Topic: Earth and Planetary Sciences

Book of Abstracts

78 29-31 August 2017

[ABS-7]

Zener diode vs rectifier diode: The comparation of Gaussian probability distribution

charts from full-wave rectifier circuits

Haris Rosdianto

Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Singkawang

Abstract

What will happen if the rectifier diode in the rectifier circuit is replaced by zener diode?

The aim of this research is to get an explanation why the use of zener diode in full-wave

rectifier circuit is not suitable. The diode used in this research is IN4728 zener diode and

IN4002 rectifier diode, which is connected to 1,200 ohm resistor. The circuit is supplied

with 5-volt AC power supply with frequency of 50 Hz. The output voltage data of the diode

is clipped by using LoggerPro voltage sensor. The data is processed by fitting the data

according to the Gaussian probability distribution. The results showed that the Gaussian

probability distribution chart of the circuit using IN4728 zener diode has an asymmetric

shape, unlike the Gaussian probability distribution chart of the circuit using an IN4002

rectifier diode that has a symmetrical shape. The IN4728 zener diode has breakdown

voltage of 3.3 V. When reversed bias is occur and the source voltage exceeds the

breakdown voltage of the zener diode, the voltage still pass through the zener diode at 3.3

V. This causes the charts of its Gaussian probability distribution has an asymmetric shape.

So it can be concluded that the use of IN4728 zener diode for rectifier circuit is not suitable.

Keywords: zener diode, rectifier diode, Gaussian probability distribution, full-wave

rectifier

Topic: Instrumentation and Measurement

Book of Abstracts

79 29-31 August 2017

[ABS-26]

An Ultrasonic Sensor System for Vehicle Detection Application

Roni Stiawan, Adhi Kusumadjati, Nina Siti Aminah, Mitra Djamal, Sparisoma Viridi

Institut Teknologi Bandung

Abstract

This paper develops an ultrasonic sensor system that can be used to determine the number,

type, and speed of cars vehicle passing a point over some specified time period. The

proposed system consists of two ultrasonic sensors and a microcontroller equipped with

data logging shield. The data were recorded and then analyzed using a computer program

written in Java Actual experiments conducted indicates that this system can give a correct

number of vehicles in a given interval of time.

Keywords: Car Monitoring System, Ultasonic Sensor, Traffic Analyzer

Topic: Instrumentation and Measurement

Book of Abstracts

80 29-31 August 2017

[ABS-102]

Thermal Effect of Electromagnetic Suspension (EMS) Performance for Maglev

Conveyor Prototype Levitation System

Deny Viviantoro, Aliq Zuhdi, Ign Agus Purbadi W

Polytechnic Institute of Nuclear Technology

Abstract

Electromagnetic suspension (EMS) is one of three air gap forming method on maglev

vehicle. Beside of applicable on low or high speed vehicle, cheap fabrication, commercially

available component, and ease to control than the other, this method still have weakness

characteristic. The magnet is generated by winding wire on the U-shaped iron core that

causing thermal excess from power loss and eddy current effect. Since the system running

in certain time, accumulative thermal from the heat power loss is greater. The greater

thermal production will increase resistance on winding wire and reluctance on iron core, so

there are decreasing of magnetic flux production and movement. Both of the problem will

be analyze to get the appropriate number current flow on wire so the thermal effect can be

minimized for air gap forming performance on maglev conveyor prototype.

Keywords: thermal, air gap, resistance, reluctance, magnet

Topic: Instrumentation and Measurement

Book of Abstracts

81 29-31 August 2017

[ABS-133]

EXPERIMENTAL OF SANDING PHENOMENA WHILE FLUID PRODUCTION

USING THICK WALLED CYLINDER LABORATORY TESTING: CASE OF

REAL INDONESIA ROCK SAMPLE

Bagus Endar B. Nurhandoko1, Mahatman Listyobudi2, Susilowati2

1)Wave Inversion and Subsurface Fluid Imaging Research, Physics Dept, FMIPA, Institut

Teknologi Bandung

2)Rock Fluid Imaging Lab.

Abstract

Oil and gas production in weakly consolidated or unconsolidated sand formation can lead

to failure on the wall of well. The sand failure raises the serious problems in production,

well economic and well?s stability. The problem in sand production can increase

significantly to the wellbore cleanup operation, erosion damage to tubing and equipment.

This paper present an experimental of sand production while fluid pumping out which

caused by wall?s failure in a well. The failure or formation?s damage may occur since

pressure exceeds the failure criteria. We investigate the critical pressure depletion causing

rock?s failure in a sample of sand. The testing using specially designed hollow core called

as thick wall cylinder testing are conducted under various pressure conditions to reveal

information of initial pressure depletion. We use some real sand samples collected from

actual outcrop formation from Indonesia. Detail of experiment and the quantity analysis of

fluid production in stable well condition are also presented in this paper

Keywords: Well stability, Thick Walled Cylinder, Sand production

Topic: Instrumentation and Measurement

Book of Abstracts

82 29-31 August 2017

[ABS-135]

Surface studies on hydrophobic polyethylene-silica nanocomposite coating system

iqroatul hasanah

institute of technology sepuluh nopember

Abstract

This research develops a one-step technique to synthesize hydrophobic

polydimethylsiloxane (PDMS)?silica nanocomposite coating with variation three phases of

silica nanoparticles on the surface of glass substrates. Those phases are silica quartz (SQ),

silica amorphous (SA), and silica cristobalite (SC). The PDMS/SC and PDMS/SA

nanocomposite coatings show the hydrophobic properties, and the water contact angle

(WCA) values are 142.41? and 148.24?. The CA of the PDMS/SC nanocomposite coatings

reached as lowest as 122.07?. The surface morphology was characterized by scanning

electron microscopy (SEM). SEM images of the coatings showed micro-nano binary

structure. PDMS/SA was found many papillae with diameters of 75 ? 500 nm are

distributed randomly on the coating surface and the surface of each papilla is rough and

PDMS/SC with diameters of 0.5 ? 4 ?m. The results confirm dip-coating method provide

the best solution to fabricate hydrophobic silica coating with low cost.

Keywords: Coating, hydrophobic, silica, Water Contact Angle

Topic: Instrumentation and Measurement

Book of Abstracts

83 29-31 August 2017

[ABS-174]

Development of Brewsters Angle measurement using Microcontroller units

Ahmad Marzuki, Lintang Bongkar Girana, Mahmudah Salwa Gianti

Physics Departement, Faculty of Mathematics and Natural Sciences, Sebelas Maret

University

Abstract

Brewsters angle method is one that commonly used for measuring high index material. This

method enables one to measure unlimited range of refractive index. Due to complicated

setup of measurement, measurement is commonly carried manually. This paper presents an

automatic instrument for measuring Brewsters angle designed using microcontroller unit

(MCU) Arduino. Calibration was made by comparing what was measured by this method

with that measured using ABBE Refractometer. It was found that both method showed a

resembling results. Using both instrument for measuring PMMA refractive index, we found

that the refractive index value of PMMA is 1.488 with the accuracy level is 99.8%.

Keywords: Optical instrumentation, refractive index measurement, Brewsters Angle

Topic: Instrumentation and Measurement

Book of Abstracts

84 29-31 August 2017

[ABS-202]

Fiber Grating Method in Fiber Optic Sensor as a Prototype of Mapping Sensor by

Load Analysis

Mahmudah Salwa Gianti, Hery Purwanto, Ahmad Marzuki

Universitas Sebelas Maret

Abstract

The development of smart-mat as a mapping sensor has the growing interest and influenced

by a variety of human needs, from medical to smart-house . The main objective of this

research is to point out the feasibility and effectivity of mapping sensor using pressure

distribution by a surface load analysis. We have developed the fiber optic sensor (FOS).

The sensor has been using multimode optical fiber with a grating and arranged to form rows

and columns that were perpendicular and embedded in rubber which called pad, as a small

part of the smart mat. Grating method in optical fibers made the sensor more sensitive to

disturbance. Loss on the grating fiber increased with increasing of pressure value so that

the intensity decreased. Reduction in the intensity of light then obtained mapping in areas

exposed to the pressure caused by the load or force from outside. The results of this study

has indicated that the fiber optic sensor can detect the position of the load that exerted a

force on the pad.

Keywords: fiber optic sensor, grating, loss, mapping, position

Topic: Instrumentation and Measurement

Book of Abstracts

85 29-31 August 2017

[ABS-209]

Development of Simple Nozzle-Type Rainfall Simulator for Landslide Simulation

Elfi Yuliza1,2, Iful Amir1,2, Muhammad Miftahul Munir1,2,a , Mikrajuddin Abdullah1

and Khairurrijal Khairurrijal1,2,b

1Department of Physics, Faculty of Mathematics and Natural Science

2Research Center for Disaster Mitigation

Institut Teknologi Bandung, Jalan Ganeca 10, Bandung, 40132, Indonesia

amiftah@fi.itb.ac.id, bkrijal@fi.itb.ac.id

Abstract

Rainfall simulators are an essential research tool for understanding the hydrological

processes between rainwater and soil including soil erosion, overland flow generation,

infiltration, etc. Many types of rainfall simulators have been developed with unique

characteristics according to their applications and research focuses. This study was

intended to design and develop a laboratory scale rainfall simulator to investigate landslide

mechanism triggered by increased rainfall intensity. The designed rainfall simulator should

have the range of rainfall intensity 50 to 100 mm/h and low kinetic energy to prevent soil

erosion. Therefore, we developed a system of rainfall simulator which consisted of nozzles,

a submersible pump, a flowmeter, and valve. The submersible pump was used to flow the

water from the water tank to the nozzles. In order to monitor the water flow rate, the

flowmeter sensor was employed. The use of nozzle was to enable rainfall production with

various drop size and distribution area. To verify the rainfall simulator performance,

various characterization processes was carried out such as uniformity distribution test via

the Christiansen uniformity coefficient (CuC), rainfall intensity test by using simple rain

gauge method, drop size measurement by using white flour surface and image processing,

and kinetic energy by theoretical approach.

Keywords: drop size, landslide, nozzle, rainfall simulator

Topic: Instrumentation and Measurement

Book of Abstracts

86 29-31 August 2017

[ABS-21]

Influence of Addition Ba-Ferrite on the Hardness, Magnetic Properties and

Coorosion Resistance of Hybrid Bonded Magnet NdFeB

Ramlan1), Muljadi2),a), Prijo Sardjono2), Fakhili Gulo3), Dedi Setiabudidaya1

1)Departement of Physics-FMIPA, Sriwijaya University, Palembang, Indonesia

2)Research Center for Physics-Indonesian Institute of Sciences.

3) Pasca Sarjana, Department of enviromental, Sriwijaya University, Palembang,

Indonesia

a) email : muljadi2002@yahoo.com

Abstract

The preparation of Hybrid Bonded Magnet based of NdFeB with additon of BaFe12O19

has been done. Composition of BaFe12O19 (3, 5, 8, and 10 % wt). Preparation process was

started by mixing NdFeB (MQP-B+) powder with BaFe12O19, then mixed with addhesive

Exopy Resin 5 %bwt and compacted with pressure 40 MPa to form a pellet with diameter

of 16 and thickness 5 mm. Samples which have been pressed then dryed using Under

Vacuum Dryer (10 mmbar) with heating temperature 90oC, for 1 hour. The

characterizations was conducted on the physical properties, such as Hardness Vickers,

magnetic properties by using Gaussmeter and VSM, and measurement of corrosion

resistence by using salt method. The best result for hardness test is hybrid bonded magnet

NdFeB with compositions of 90 %wt NdFeB, 10 %wt BaFe12O19 and 5 %wt epoxy resin.

Hardness value of hybrid bonded magnet NdFeB of this compositions is = 265,13 HV. The

best result for magnetic properties is hybrid magnet NdFeB with compositions of 95 %wt

NdFeB, 5 %wt BaFe12O19 and 5 %wt epoxy resin. Those magnetic properties are Flux

Density = 1340 Gauss, Br (remanance) = 3,827 kG, Hcj (coercivity) = 8,924 kOe dan

BHmax (Energy Product) = 2,847 MGOe. According the corrosion result test is found that

sample with higher content BaFe12O19 has better corrosion resistance compare to sample

with small content of BaFe12O19 .

Keywords: hybride magnet, magnet NdFeB, Magnet BaFe12O19 , corrosion resistance,

energy product, remanence, coecivity

Topic: Interdisciplinary Physics

Book of Abstracts

87 29-31 August 2017

[ABS-22]

Influence of Variation of Electrical Current Welding of ASTM Steel A 36 on Micro

Structure and Mechanical Properties

Djuhana1),a) , Mulyadi1),a)

1)Departement of Mechanical Engineering, Faculty of Technik, Pamulang University,

South Tangerang , Banten province, Indonesia.

a) email : muljadi2002@yahoo.com; dosen01545@unpam.ac.id

Abstract

The welding process of ASTM A 36 metal was carried out using SMAW welding machine

with variated electric current welding ie: 95 A, 105 A and 120 A. To analyze the welding

results, several tests have been conducted, such as observing micro structure changes using

optical micriscope and changing the hardness value at the welding point and the area around

the welding (heat afected zone -HAZ), and measuring the impact strength value.

Microstructure for in HAZ, welding zone and in metal base is different for each variable of

welding power. Where in the base metal region there are always ferrite and pearlite phases,

it indicates as a low carbon steel materials. If the electric current welding increases then the

welding temperature will rise and consequently at the HAZ and at welding zone areas will

form new phases like austenite and martensite. Based on the results of vickers hardness

measurements, indicating that the las power increases, the value of its hardness increases,

as well as the hardness at welding zone has the highest hardness of about 450 -515

kgf.mm2. The impact test results show that the impact strength of the original metal without

welding is 3.23 J / mm2, but the impact strength value after welding depends on the electric

current of the welding, if the electric current of welding increases, the impact strength tends

to decrease, becouse material become brittle. The optimum welding result is obtained at

welding by using electric current 95 A, because in this condition is obtained impact strength

close to the value of the original metal.

Keywords: A 36 ASTM steel, welding, impact strength, microstructure, hardness

vickers, HAZ zone, welding zone, ferrite, austenite

Topic: Interdisciplinary Physics

Book of Abstracts

88 29-31 August 2017

[ABS-25]

Synthesis and Characterization of Ba-Ferrite with Variation of Nd2O3 additive by

Powder Metallurgy Method

Suprapedi1), Muljadi1),a), Priyo Sardjono1

1)Pusat Penelitian Fisika, Lembaga Ilmu Pengetahuan Indonesia

KawasanPuspitek,TanggerangSelatan,15314

a)Email: muljadi2002@yahoo.com

Abstract

Ba-ferrite is material permanent magnet (PM) with formua stochiometri BaO.6Fe2O3 and

it has relaively low magnetic properties compared to other materials such as PM from rare

earth materials. There are many methods to increase of magnetic properties, firstly by

modification of grain size and microstructure and secondly by using additive. In this

experiment, that Ba-ferrite with additive 0%, 0,5% and 1,0 %wt. Nd2O3 have been made

by using raw materials: BaCO3 (p.a) and Fe2O3 (p.a). The raw materials and additive were

mixed and milled by using a ball mill for 24 hours and milling media is aquadest. After that

the samples were dried at 100oC for 6 hours and then the samples were calcined at

temperature 1000oC for 2 hours by using electrical furnace. The calcined samples were

milled by using a ball mill for 6 hours and sieved until passing 400 mesh. After that the all

powders were formed by using hydraulic pressure machine at pressure 40 MPa to obtain a

pellet with diameter 18 mm and thickness 5 mm. The pellet was sintered with heating rate

10 oC / minute and at temperature 1150oC and holding time was 1 hour. According the

characterization results show that the optimum of additive composition is 0.5%wt.Nd2O3,

at this condition , the magnetic properties can increase about 40 %, where remanence value

(mr) is 33.72 emu/g, the coercivity value (Hc) is 2.907 kOe and flux magnetic value is 650

Gauss. According the xrd results shows that the peak of Nd2O3 phase does not appear at

sample with 0.5 % Nd2O3, but it appears at sample with 1.0 % Nd2O3.

Keywords: Ba-Ferrite, magnet permanent, additive Nd2O3, calcination, sintering,

remanence, coercivity, flux magnetic.

Topic: Interdisciplinary Physics

Book of Abstracts

89 29-31 August 2017

[ABS-56]

Effect of Potential on Corrosion Behavior of Tartaric-sulphuric Acid Anodized 7075

T6 Aluminium Alloys

M I Tawakkal1,a), Akhmad A. Korda1,b)

1Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering

Bandung Institute of Technology, Jl. Ganesha 10 Bandung 40132 Indonesia

a)Corresponding author: m.i.t@students.itb.ac.id; b) akhmad@mining.itb.ac.id

Abstract

Anodizing of aluminum alloy in tartaric-sulfuric acid (TSA) is studied as an alternative to

replace chromic acid anodization (CAA) to obtain more environmentally-friendly process.

Bare 7075 T6 aluminum alloy specimens were anodized in TSA and subsequently protected

by boiled water sealing treatment. The TSA solution used contains 86,76 gpl tartaric acid

and 44 gpl sulfuric acid at 37&#61616;C. Some specimens are anodized in CAA as

comparison. In this research, the effect of anodization potential of 7075 T6 aluminum alloy

in TSA on the thickness, weight, and corrosion resistance of anodize layer are studied.

Corrosion resistance test was carried out by conducting salt spray test for 96 hours and

corrosion potential and current density measurement using potentiostat. The morphology

and chemical composition of the sealed anodize layer were evaluated by scanning electron

microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). The results showed that

the thickness and weight of the anodize layer increases as the anodization potential

increases. The best corrosion resistance is achieved by 7075 T6 aluminum alloy specimen

with potential anodization of 15 V.

Keywords: Anodizing, Al 7075 T6 alloy, Tartaric-sulphuric

Topic: Interdisciplinary Physics

Book of Abstracts

90 29-31 August 2017

[ABS-57]

Characterization of Tartaric-Sulphuric Acid Anodized 2024-T3 Aluminium Alloys

with Anodizing Potential Variation

M H Setianto1,a), Akhmad A. Korda1,b)

1Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering

Bandung Institute of Technology, Jl. Ganesha 10 Bandung 40132 Indonesia

a)Corresponding author: muhamadhananuput@students.itb.ac.id; b)

akhmad@mining.itb.ac.id

Abstract

The influence of anodizing potential on corrosion resistance, coating weight, and coating

thickness of AA 2024-T3 aluminium alloy anodized in tartaric-sulphuric acid (TSA) has

been investigated. Specimens were anodized in TSA bath then sealed in boiling water bath.

Anodizing was performed with potential variations of 11, 13, 15, 17, 19, and 21 volt (V).

Corrosion resistance test was carried out by 96 hours salt spray test and potentiodynamic

polarization. Coating weight was determined by gravimetric method and coating thickness

was determined by metallographic method. Salt spray test results showed that anodizing

potential did not affect corrosion resistance. Corrosion potential has the same value with

pitting potential for all specimens. Corrosion potential increases with increasing anodizing

potential from 11 V until 19 V and then decreases at 21 V anodizing potential. Corrosion

current was not affected by anodizing potential. Coating weight and coating thickness

increases with increasing anodizing potential.

Keywords: Anodizing, Al 2024-T3 alloy, Tartaric-sulphuric

Topic: Interdisciplinary Physics

Book of Abstracts

91 29-31 August 2017

[ABS-59]

A New Physics Models for Wind Resistance of Coconut Tree

Rahmawati Munir, Handika Dany Rahmayanti, Nadya Amalia, Sparisoma Viridi, and

Mikrajuddin Abdullah

Department of Physics, Institut Teknologi Bandung

Abstract

An investigation of how coconut palm tree withstands gale force winds has been performed.

When observed carefully, the motion of the stalks and leaves affected the wind resistance.

The stalks and leaves moved at random when intentioned wind blowed. However, there is

still no report on the physical modelling. This paper proposes a simple mathematical model

to analyze the phenomenon. A simple tool was also designed to retrieve data using Video

Tracker. The experiments were conducted on several type of springs. The model showed

that the theoretical prediction accurately explained the phenomenon.

Keywords: Coconut tree, wind resistance and Video Tracker

Topic: Interdisciplinary Physics

Book of Abstracts

92 29-31 August 2017

[ABS-65]

The effect of lithium nitrate towards electrochemical properties of Carboxymethyl

Chitosan

N. N. Mobarak, A. Ahmad, M. P. Abdullah

School of Chemical Sciences and Food Technology, Faculty of Science and Technology,

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia

Abstract

Carboxymethyl chitosan has showed its potential to be used as host polymer for solid

polymer electrolyte application. The effect of lithium nitrate towards electrochemical

properties of solid polymer electrolyte based carboxymethyl chitosan has been investigated.

Solid polymer electrolyte based carboxymethyl chitosan was prepared by solution-casting

technique. The films were characterized by Attenuated Total Reflected Fourier Transform

Infrared (ATR-FTIR) Spectroscopy and Electrochemical Impedance spectroscopy to

determine the chemical interaction and electrochemical properties of the polymer

electrolytes. Based on ATR-FTIR spectra, the lithium ions tends to interact with carbonyl

group and ether group in carboxymethyl chitosan structure. The highest conductivity

achieved was 8.44

Keywords: Carboxymethyl Chitosan, lithium nitrate, electrochemical

Topic: Interdisciplinary Physics

Book of Abstracts

93 29-31 August 2017

[ABS-75]

Antibacterial investigation activity of technical grade Titania anatase

Desyana Olenka Margaretta(1),Kingkin W.Permadi (1), Sparisoma Viridi(1) Mikrajuddin

Abdullah(1,a)

(1)Department of Physics Bandung Institute of Technology

Jalan Ganeca 10, Bandung 40132 Indonesia

(a)E-mail: din.fi@itb.ac.id

Abstract

TiO2 (titania) has good potential as anti-bacterial agent with photocatalytic process. TiO2

attacks the membrane with radical * OH, inhibit the synthesis of proteins and nucleic acids

in bacteria, radicals *OH can be a strong oxidizing agent anti-bacterial activated by

irradiating UV-C. We do coating with Technical grade titania anatase from Bratachem to

observe their photoinactivation activity . Titania deposited on organic subtrat and

polyprophilen substrat by spray method and heated. Investigation of Antibacterial testing

using plate count method. The Plate Count Method principally calculates the number of

colonies formed on each plate. Plate Count Method is performed by dissolving samples

containing bacteria with physiological salt water. After dissolving, take one chip from each

sample then irradiated with UV lamp for 24 hours and counted. This experiment shows

good result in bacterial photoinactivation effectiveness. Technical grade Titania from

Bratachem has good performance almost as nano pure titania. Technical grade Titania

anatase from bratachem, Indonesia is observed 99% can reduce bacterial colonies.The

Technical grade titania has potential for large scale application.

Keywords: Titania,Photocatalytic,Technical grade,antibacterial

Topic: Interdisciplinary Physics

Book of Abstracts

94 29-31 August 2017

[ABS-81]

The Effect of Hydrophylic Coating on Concrete Pile Surface in Pile Driving: Real

Field Test

Nadya Amalia, Elfi Yuliza, Mamat Rokhmat, Edy Wibowo, Sparisoma Viridi, and

Mikrajuddin Abdullah

Institut Teknologi Bandung

Abstract

At laboratory scale, hydrophilic coating on the surface of precast concrete piles is capable

of affecting the piles to be installed into a certain depth level with less number of hammer

strokes than piles without coating. In this work, a preliminary study of pile driving tests in

the real field with the same type of soil at the laboratory scale was carried out. Based on

our analysis results of the measurement data it was found that the hydrophilic coating has

different effects on the pile driving at laboratory and real field scales.

Keywords: precast concrete pile, hydrophilic coating, hammer strokes, pile driving

Topic: Interdisciplinary Physics

Book of Abstracts

95 29-31 August 2017

[ABS-116]

The Influence of Oil Price Fluctuations on Indonesian Stock Prices Through

Wavelet Coherence

Qoniti Amalia, Acep Purqon

Institut Teknologi Bandung

Abstract

Oil is the most important source of energy in the world. In 2014 price of world oil (WTI /

West Texas Intermediate) showed a decline. The decline in oil prices was followed by stock

prices including the price of Indonesian stocks. A phenomenon where asset price move

together, known as comovement be an important indicator for investors to make investment

decisions.This study aimed to know the influence of oil price fluctuations on Indonesian

stock prices during the oil prices downturn period from 2014 (March 2014-March 2017).

Shares study consist of five Indonesian stocks ; Adaro Energy Tbk (ADRO), Aneka

Tambang Tbk (ANTM), Vale Indonesia Tbk (INCO), Perusahaan Gas Negara (Persero)

Tbk and Tambang Batubara Bukit Asam (Persero) Tbk. The method used is the method of

wavelet coherence. Based on this method, the time series can be investigated in time

domain and frequency domain. Plot contours of wavelet coherence gave information

comovement of two time series. The results of this study indicate Adaro Energy Tbk has

the most significant comovement while the Perusahaan Gas Negara (Persero) Tbk show the

least. Perusahaan Gas Negara (Persero) Tbk showed a lower risk and more stable stocks

and are not affected by oil price fluctuations. Based on types of investors to look at the risk

profile, the type of defensive investor will invest in stocks with low comovement namely

Perusahaan Gas Negara (Persero) Tbk. While an aggressive type of investor will tend to

pick stocks with high comovement to oil prices as Adaro Energy Tbk because they bring

in more returns

Keywords: investor, oil prices, stock prices, wavelet coherence

Topic: Interdisciplinary Physics

Book of Abstracts

96 29-31 August 2017

[ABS-127]

Effect of solution molarity and post-annealing on optical band gap of Al doped ZnO

thin films

A.R.A. Rashid, T.N.H.T. Mazlam, N.S. Othman, K.A. Dasuki

Faculty of Science and Technology, Universiti Sains Islam Malaysia, 71800, Nilai,

Negeri Sembilan, Malaysia

Abstract

Undoped and Al-doped ZnO thin films have been prepared by the sol?gel method. Zinc

acetate dihydrate, ethanol and monoethanolamine were used as precursor, solvent and

stabilizer, respectively. In the case of molarity study for Al-doped ZnO, aluminum nitrate

nonahydrate was added to the precursor solution from 0 at.% to 6 at.% at molarity of 0.1

M and 0.2 M. For post-annealing study, the quantity of Al in the sol was varied from 0 at.%

to 3 at.% with annealing temperature of 450?C, 500?C and 550?C. The optical properties

were characterized using UV-Vis where the band gap of undoped ZnO increases as the

annealing temperature increase and the band gap decrease as the molarity increment.

Meanwhile the band gap increase upon increment of Al dopant. The effect of annealing,

molarity and dopant percentage on the thin film gives a different value of energy band gap.

Keywords: Al doped ZnO, post-annealing, molarity

Topic: Interdisciplinary Physics

Book of Abstracts

97 29-31 August 2017

[ABS-156]

Highly Easy and low cost Fabrication of Gaphite-based Flexible Transparent

Conducting Film

Dui Yanto Rahmana, Sutisna, Fisca Dian Utami, Euis Sustini and Mikrajuddin Abdullah

Department of physics

Faculty of Mathematics and Natural Science

Bandung Institut of Technology

Jl. Ganesha 10 Bandung 40132, Indonesia

duiyantorahmanssi@gmail.com, mikrajuddin@gmail.com

Abstract

We demonstrated extraordinary easy and low cost fabrication of flexible transparent

conducting film (TCF) using graphite powder as conducting material. The method is

ignoring heating and transfer process which is commonly used in fabrication of transparent

conducting film. Graphite powder is directly and manually deposited onto the transparent

plastic by using tube-shaped metal which its round surface covered with tissue of 2 mm

thick. The deposition of graphite powder was performed by circle motion of 20 movements

for one coating or one layer. Numerous layers of graphite film were coated on the previous

stacked layer to increase TCFs conductivity. Resistivity and transmittance measurement of

TCF were performed by four point probe method and UV-Vis equipment respectively. It is

confirmed that graphite TCF achieved the resistivity of 0.98 ohm.cm and transmittance of

60% for one coating, while 40 times coating resulted the resistivity of 0.17 Ohm.cm and

transmittance of 4.6%. Although its transmittance still has a room to be improved higher,

our method is very promising for future up scalable production of transparent conducting

film owing to its highly easy process and effective cost.

Keywords: Graphite, Transparent Conducting Film, Thickness, Conductivity and

Transmittance

Topic: Interdisciplinary Physics

Book of Abstracts

98 29-31 August 2017

[ABS-158]

Photocatalys Based TiO2 and Its Application in Organic Wastewater Treatment

Using Spray Method

Fisca Dian Utami, Sutisna, Dui Yanto Rahman, Mikrajuddin Abdullah

Physics Department of Institut Teknologi Bandung

Abstract

In present research, we reported a succesfull coating of TiO2 particle on the transparent

plastic which applied in principle photocatalyst by spray method. This method was

employed to degrade organic wastewater (Methylene Blue) under solar exposure. A total

of 300 ml of blue methylene was used in the photocatalyst test. From the absorbance

spectrum and the degradation rate of methylene blue it was show that the blue methylene

successfully degraded about 95% in 2 days of irradiation. The result suggests a faster rate

of degradation than previously reported studies. This method is selected because it is

simple, environmentally friendly, reasonably priced, and has the potential to continue to be

developed.

Keywords: wastewater treatment, photocatalys, TiO2.

Topic: Interdisciplinary Physics

Book of Abstracts

99 29-31 August 2017

[ABS-165]

A Facile Microwave-Assisted Synthesis of Carbon Dots and Their Application as

Sensitizers in Nanocrystalline TiO2 Solar Cells

Ilham Alkian, Adi Prasetio, Ledi Anggara, Karnaji , Rizka Zakiyatul Miskiyah, Fonisyah

Marspianko Habibah, Hendri Widiyandari

Diponegoro University

Abstract

Sensitizers play an important role in dye-sensitized solar cell (DSSCs) to harvest photons

and convert them to electrons assisted by semiconducting photoanode. Nowaday,

ruthenium complex is the most common used as sensitizer due to its broad light absorption.

However, the ruthenium material is very expensive due to its rare materials and complex

synthesis process. Herein, we demonstrate the facile microwave-assisted method to

synthesize of the carbon-dots (C-dots) and utilize them as sensitizers in the DSSCs. The C-

dots are synthesized by mixing 48 g of urea, 24 g of citric acid and 180 mL of aquades acid.

The C-dots are synthesized using a microwave at 450 W for 15, 30, and 45 min.

The C-dots emit green light induced by exposure to ultraviolet (UV) light. The absorbance

peaks are increasing from 408, 414 and 420 nm repectively corresponding to 15, 30, and

45 min of C-dots heated by microwave radiation. On the other hand, the C-dots have broad

absorbance range, especially at visible light range. The second lower peak should be caused

by phi to phi* transition at aromatic sp. C-dots show low transmittance at 3460, 1661 and

1455 cm-1 repectively corresponding to group functions of amine N-H vibration, alkene

C=C vibration, C-O and N-O. The peaks from 1230 to 1161 cm-1 show different vibration

modes of carboxyl, ester, ether and alcohol moeties. The research shows that the

wavelength of the C-dots decreases and the band gaps of c-dots increase as the heating time

in microwave get longer. The increases of band gap informs that the C-dots size get smaller.

The DSSCs devices are characterized under solar simulator AM 1.5G illumination at 100

mW/cm2 light intensity. The results 0.067% of the power conversion efficiency (PCE) and

0.34 of the fill factor (FF) are reached as the highest performance reached in this study.

Additionally UV-vis spectra shows broad light absorption throughout the visible light with

the band gap of about 2.68 eV. The results show that the c-dots synthesized using facile

method have emerged as alternative photosensitizer due to its broad light absorption

comparable to ruthenium-based dye.

Keywords: Carbon Dots, DSSCs, Microwave, Sensitizer

Topic: Interdisciplinary Physics

Book of Abstracts

100 29-31 August 2017

[ABS-172]

The Effect of Ozone Dielectric Barrier Discharge (DBD) Towards Reduction of

Microorganism in Eggs

Siti Mudrikah, Nita Melinda, Norma Faizatun Nikmah, Ilham Alkian, Siti Magfiroh,

Zaenul Muhlisin

Diponegoro University

Abstract

Food materials for example eggs have a fairly high nutritional content, especially protein.

However, eggs can be easily damaged. They will experience quality decrease within 14

days stored at room temperature. Moreover, they will rot fast because it is easily

contaminated with microorganisms. There are many ways to prevent rottenness in eggs,

such as conventional techniques of salting, fumigation, or by immersion in an extract, but

all of those ways do not produce satisfactory results. The purpose of this study is to know

the effect of ozone gas exposure using Dielectric Burrier Discharge (DBD) method towards

the reduction of microorganisms in eggs. Ozone, as a powerful oxidizer, is expected to be

used as a desinfectant for algae, fungi, and bacteria. This study uses four samples, without

ozonation (A), 10 minutes of ozonation (B), 20 minutes of ozonation (C) and 30 minutes

of ozonation (D). Each of samples was observed during 7 day. The result of Total Plate

Count (TPC) of Salmonella Sp. on the shell of the samples A, B, C, and D respectively

TBUD, TBUD, 2.2 x 105cfu/ml, 1.6 x 105cfu/ml, whereas in successive contents TBUD,

TBUD, 2.1 x 105cfu/ml, 1.5 x 105cfu/ml. The result of TPC test of whole bacterial colonies

on sample shells A, B, C, D were 2.9 x 105cfu / ml, 1.6 x 105cfu/ml, 0.9 x 105cfu/ml, 0.73

x 105cfu/ml, whereas in successive contents TBUD, 2.4 x 105cfu/ml, 1.7 x 105cfu/ml, 0.7

x 105cfu/ml. From the result above, it can be concluded that the most effective time on

adding the ozonation is on sample D, which is exposed for 30 minutes. This also

corresponds to other test results such as pore density test, hock test, and texture test. This

research is expected to introduce ozone technology as a solution in extending the storage

time and reducing the possibility of microbial contamination in eggs.

Keywords: Egg, Microorganisms, Ozone

Topic: Interdisciplinary Physics

Book of Abstracts

101 29-31 August 2017

[ABS-175]

SOCIALIZATION OF LANDSLIDE HAZARDS AT KAIRO HILL -

INFRASTRUCTURE TOURISM IN TANA TORAJA

L. Pasasa1, a), L. Hendrajaya1, I. Permanasari1, and D.Pandara2)

1Earth Physics and Complex Systems, Faculty of Mathematics and Natural Sciences,

Institut Teknologi Bandung

2 Faculty of Mathematics and Natural Sciences, Universitas Sam Ratulangi, Manado

a)Corresponding author: lpasasa@fi.itb.ac.id

Abstract

Concept of disaster management and knowledge on hazard phenomena in Indonesia is to

develop the understanding and awareness, so they can be further motivated and empowered

to develop effective geological hazard disaster management as well as public education

programs. The landslide hazard mitigation strategy aim to reduce number of live, socio and

economics losses caused by Landslide. Therefore, socialization of landslide hazards is a

crucial step towards empowerment of human resources to guarantee the sustainable life and

environment in the hazard vulnerable area, especially at Kairo Hill, Tana Toraja. The step

of the strategy are: Landslide susceptibility, mapping, early warning system, monitoring

landslide, and socialization.

Keywords: Landslide, disaster management, socialization, Kairo Hill

Topic: Interdisciplinary Physics

Book of Abstracts

102 29-31 August 2017

[ABS-188]

Investigation of Conceptual Understanding of Pre-Service Science Teachers in

Integrated Science Subject

Nanang Winarno, Ari Widodo, Dadi Rusdiana, Diana Rochintaniawati, Ratih Mega Ayu

Afifah

Universitas Pendidikan Indonesia

Abstract

The aim of this study is to investigate the conceptual understanding of pre-service science

teachers in integrated science subject. This research is a descriptive research. Sample used

in this research is 42 pre-service science teacher one of university in Bandung, Indonesia.

The results of this study is the conceptual understanding of pre-service science teachers in

integrated science subject on several topics is still low. Most of the pre-service science

teachers explain the answers of some questions only in the Physics, Biology, or Chemistry

point of view and still have not been able to explain a problem by integrating from some

subjects (Physics, Biology, and Chemistry). The recommendation of this research is to

develop integrated science textbooks at the university level.

Keywords: Integrated science, Pre-service science teacher, Conceptual understanding

Topic: Interdisciplinary Physics

Book of Abstracts

103 29-31 August 2017

[ABS-9]

Measurement and analysis of U-233 from Local Thorium Irradiated at Kartini

Reactor by Using Gamma Spectrometry and DNC Methods

Syarip, Susilo Widodo, Muzakky, Sukirno

Centre for Accelerator Science & Technology, National Nuclear Energy Agency

Abstract

The measurement and analysis of U-233 from irradiated local thorium sample by gamma

spectrometry and fission-induced delayed neutron counting (DNC) method have been done.

The main goal of this experiment was to explore possibilities of U-233 determination in the

irradiated thorium for its future use in SAMOP reactor. Some ThO2 samples of 0.1 gram

were irradiated at the Kartini reactor at average neutron flux of 10^12 n cm^-2s^-1 and

cooled down for 55 days before counted by gamma spectrometry where U-233 determined

indirectly by gamma peak counting of Pa-233. The samples then re-irradiated to determine

U-233 by using DNC method. The analysis result both by using gamma spectrometry and

DNC methods were 10.10 +/- 0.96 micro gram and 17.22 +/- 1.85 micro gram of U-233 in

average. Of the two gamma spectrometry and DNC methods both provided results in

somewhat relatively good agreement with the calculated amounts of U-233 using

ORIGEN2 computer code i.e. 14.3 micro gram. The detection limit of DNC and the

efficiency of detection system measured are 0.006 micro gram and 6.39 +/- 0.07%

respectively, and the efficiency of gamma spectrometry system is 18%.

Keywords: Thorium, U-233, gamma spectrometry, DNC, Measurement

Topic: Nuclear Science and Engineering

Book of Abstracts

104 29-31 August 2017

[ABS-30]

Influence of GA Siwabessy Reactor Iradiation Period on The Production of

Molybdenum-99 (99Mo) by Neutron Activation to Produce Technetium-99m

(99mTc)

M Munir, Herlina, Sriyono, E Sarmini, Abidin and Marlina

Center for Radioisotope and Radiopharmaceutical Technology, National Nuclear Energy

Agency

Abstract

The production of 99Mo by neutron activation method in multipurpose reactor GA

Siwabessy is an alternative solution to overcome 99Mo shortage, particulary in Indonesia.

The aim of this study is evaluating the influence of an irradiation period of the reactor on

the quality parameters of 99Mo and 99mTc. A natural molybdenum was packed in quartz

ampule and aluminium capsule, irradiated in the research reactor for around 100 hours.

Whereas the 99Mo - 99mTc separation was conducted in Center for Radioisotope and

Radiopharmaceutical Technology using zirconium-based material (ZBM). Both the

obtained 99Mo activity and 99mTc yield percentage were influenced by the irradiation

period. On the other hand, both the adsorption capacity of ZBM and quality parameters of

99mTc were not influenced by the irradiation period.

Keywords: Tc-99m, Mo-99, Irradiation Period

Topic: Nuclear Science and Engineering

Book of Abstracts

105 29-31 August 2017

[ABS-76]

Calculating the Binding Energy of the Lithium Nucleus with the Yukawa Potential

and the Hellmann Potential using WKB Approximation

Ahmad Suaif (a*), Dina Rahmawati (b)

a) Theoritical High Energy Physics and Instrumentation Research Division, Physics

Department, Bandung Institute of Technology 40132, Indonesia

*ahmadsuaif@s.itb.ac.id

b) Electronic Material Research Division, Physics Department, Bandung Institute of

Technology 40132, Indonesia

Abstract

It had been conducted the solving of the Schodinger equation for 6-body particle system to

determine the binding energy of the Lithium nucleus using two different potentials, The

Yukawa Potential, and The Hellmann Potential. To ease the calculation process was used

the WKB Approximation. It was shown that the binding energy of Lithium equals to 32.00

MeV with the error was 0.02% compared to the experimental reference values for each

parameter where a = 0.8 and Vo = 40 MeV

Keywords: Lithium nucleus, binding energy, Yukawa Potential, Hellmann Potential,

WKB Approximation

Topic: Nuclear Science and Engineering

Book of Abstracts

106 29-31 August 2017

[ABS-111]

RADIATION SHIELDING DESIGN OF NEUTRON SOURCE OF "SAMOP"

RADIOISOTOPE PRODUCTION TEST FACILITY

Tegas Sutondo, Syarip

Center for Accelerator Science and Technology (CAST), National Nuclear Energy

Agency

Abstract

The most common radioisotope used in diagnosis for medical imaging in nuclear medicine

is Tc-99m which is daughter isotope of Mo-99. A subcritical assembly for Mo-99

production (SAMOP), fueled with uranyl nitrate solution has been designed to be operated

by using external neutron source. The SAMOP experimental or test facility is a facility to

be used for performance testing of the SAMOP system by using neutron source from radial

beam port of Kartini nuclear reactor. This paper presents the results of the radiation

shielding design and calculation for external neutron source of SAMOP experimental

facility. The method used is a modeling and calculation by using MCNPX computer code.

Based on the assumed source terms, the materials being used, and the geometrical

arrangements, it is concluded that by using paraffin of 60 cm thickness for the beam catcher

and 50 cm for the concrete of the outer shield would be sufficient to reduce the radiation

dose below the maximum recommended limit. The presence of beam catcher can

significantly reduce the contribution of neutrons and secondary particles to the radiation

dose.

Keywords: Radioisotope, Mo-99, nuclear medicine, radiation, shielding, SAMOP.

Topic: Nuclear Science and Engineering

Book of Abstracts

107 29-31 August 2017

[ABS-184]

Performance of Thorium Uranium Nitride (Th,U233)N Fuel for 500 MWth GFR

Long-Life Without Refueling use FI-ITB-CHI code

Ratna Dewi Syarifah, Zaki Su?ud, Khairul Basar and Dwi Irwanto

Nuclear Physics and Biophysics Research Division, Physics Department, Faculty of

Mathematics and Natural Science, Bandung Institute of Technology Indonesia,

Jalan Ganesha 10 Bandung 40132, INDONESIA

Abstract

Performance of Thorium Uranium Nitride Fuel for 500 MWth GFR Long-Life Without

Refueling use FI-ITB-CHI code has been done. Gas Cooled Fast Reactor use fast neutron

spectrum, and belong to one of fast breeder reactor type. Thorium is three up to four times

more abundant than uranium and is widely distributed in nature can be obtained in many

countries. Natural thorium does not contain any fissile material and is made up of the fertile

Th-232 isotope only. Thorium fuel and fuel cycles are particularly relevant to countries

having large thorium like Indonesia. The calculation use FI-ITB-CHI Code which has been

verified by SLAROM code. The core calculation use R-Z geometry dimensional. The multi

group diffusion calculation is carried out every year to get neutron flux distribution and

power distribution. Then burn up calculation is carried out for each spatial mesh. libraries.

The reflector radial-axial width is 50 cm. The variation of fuel volume fraction is 40% until

65%, cladding 10%, and moderator 25% up to 50%. There is three variation fuel in the core

reactor, i.e. Fuel 1 (F1) is 7.8% percentage of U233, Fuel 2 (F2) 8% percentage of U233,

and Fuel 3 (F3) 8.8% percentage of Plutonium. All case can reach burn up time plus than

20 years. The power density distribution of heterogeneous core configuration is flatter than

homogeneous core configuration.

Keywords: thorium nitride, GFR, FI-ITB-CHI

Topic: Nuclear Science and Engineering

Book of Abstracts

108 29-31 August 2017

[ABS-200]

Experiments on natural convection as a coolant system mechanism on nuclear

reactors

Habibi Abdillah, Novitrian

Institut Teknologi Bandung

Abstract

The nuclear reactor accident at Fukushima occurred because the pump on the cooling

system did not work. Next-generation nuclear reactors are expected to have a cooling

system that remains functional even when the pump is not working. Natural convection

becomes an option that can be used to flow the coolant without using a pump. Natural

convection is a fluid flow phenomenon that occurs due to differences in density. The

research was conducted to study the effect of the temperature difference on the flow rate of

coolant. Previous experiments have been carried out to determine the flow rate of

refrigerant to the height of the cooling system, but have deficiencies in the measurement of

the flow rate of the coolant.

Keywords: Natural convection, Cooling system, Flow rate coolant

Topic: Nuclear Science and Engineering

Book of Abstracts

109 29-31 August 2017

[ABS-205]

High Temperature Oxidation of Fe-Cr-Al Coating Prepared by a Flame Spray

Technique

Atthur El Fath1, Irmaniar2, Didik Aryanto2, Sitti Ahmiatri Saptari1, Toto Sudiro2*

1Physics Department, Science and Technology Faculty, Universitas Islam Negeri Syarif

Hidayatullah Jakarta

2Research Center for Physics, Indonesian Institute of Sciences

Corresponding Author: toto011@lipi.go.id

Abstract

In the present study, the Fe-Cr-Al coatings containing 0 and 30 at.% Al content were

prepared by a flame spray technique. The coatings were then annealed in vacuum at 800oC

for 2h. To evaluate the coating oxidation resistance, the high temperature cyclic oxidation

test was performed at 800oC for up to 8 cycles. XRD and SEM-EDS were used to

characterize the oxidized samples. The results show that the carbon steel is susceptible to

high temperature oxidation. A thick Fe-oxides layer was formed on the steel surface. On

the contrary, the Fe-Cr-Al coatings play a role in improving the oxidation resistance of low

carbon steel. The FeCr coating with 30 at. % Al content exhibits the lowest mass gain after

exposure for 8 cycles at 800oC.

Keywords: Fe-Cr-Al, coating, flame spray, oxidation.

Topic: Nuclear Science and Engineering

Book of Abstracts

110 29-31 August 2017

[ABS-207]

Preliminary Development of Coupled Neutronic - Thermalhydraulic Computer

Code for Multipass Fuel Loading Scheme of Pebble Bed Reactor

Dwi Irwanto, Sidik Permana, Syeilendra Pramuditya, Asril Pramutadi

Nuclear and Biophysics Research Division, Faculty of Mathematics and Natural Sciences,

Institut Teknologi Bandung, Indonesia

Abstract

Pebble Bed Reactor (PBR) is one of the most promising nuclear reactor design due to its

advantages on neutronic, thermalhydraulic and safety aspects. Indonesia, currently having

interest to develop this type of reactor, therefore in-house analysis tools for PBR need to

be developed. This computer code have to treat both neutronic and thermalhydraulic

aspects in coupled due to its strong connection. As a first step, a code for thermalhydraulic

calculation are under development and using methods proposed by Stroh. Meanwhile,

neutronic calculation are using Monte Carlo MVP code. Development progress for this

coupled neutronic and thermalhydraulic code for PBR are reported in the present study.

Keywords: Pebble Bed Reactor, Neutronic, Thermalhydraulic, Computer Code

Topic: Nuclear Science and Engineering

Book of Abstracts

111 29-31 August 2017

[ABS-208]

Development of Accident analysis of Gas Cooled Fast Reactors and its application in

Cluster Computer

Zaki Su?ud1, Fitria Miftasani1, Menik Ariani2, Dwi Irwanto1

1Nuclear and Bophysics Research Divisions, Faculty of Mathematics and Natural

Sciences, Bandung Institute of Technology

2Department of Physics, Sriwijaya University, Palembang, Indonesia

Abstract

Accident analysis if important to verify inherent safety capability of Generation IV Nuclear

Power Plant. Gas cooled fast reactors is one of the Gneration IV Nuclear Power Reactors.

Here full scale accident analysis code for gas cooled fast reactos has been developed. The

code include couple between space-time kinetic and transient thermohydraulic over the

reactor core and supporting system. The nuclear reactor system considered here include

reactor core, steam generator, pump, and passive decay heat removal system. The space

time ?kinetic of adiabatc approach is adopted here for gas cooled fast reactors for optimal

computational time and simulation accuracy. Transient thermal hydraulic calculations

include transent heat conduction in fuel, transient heat transfer in fuel channel, heat

exchanger calculations using quasistatic approach, and decay heat removal calculations.

Overal calculations are implemented in fortran program and optimized for cluster computer

Keywords: Gas Cooled Fast Reactor, Accident Analysis, Cluster Computer

Topic: Nuclear Science and Engineering

Book of Abstracts

112 29-31 August 2017

[ABS-213]

Neutronics Analysis of AP1000 Nuclear Reactor with ThO2-UO2 Fuel

Raka F. Baskara1,a, Abdul Waris2*, Rizal Kurniadi2, Khairul Basar2, Widayani2

1Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia 2Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung

40132, Indonesia

*E-mail: awaris@fi.itb.ac.id, araka.firman@students.itb.ac.id

Abstract

Thorium nuclide can be used for next generation nuclear reactor fuel since its has 3-4 times

more abundance and will produce less nuclear high level waste compared to uranium. In

this analysis, ThO2-UO2 fuel is used with variation of enriched U-235 to determine the

criticality condition of Westinghouse advanced nuclear reactor AP1000. Neutronic

calculations have been performed using SRAC 2006 code system with JENDL 4.0 nuclear

data library. AP1000 can achieve it criticality when a minimum enrichment of UO2 is

4.45% with the maximum amount of the ThO2 fuel rods in the fuel assembly are 1.5%. The

conversion ratio for ThO2-UO2 fuel tends to increase and the neutron spectra became

harder with the escalating of the amount of ThO2.

Keywords: AP1000, ThO2, UO2, SRAC 2006, JENDL 4.0

Topic: Nuclear Science and Engineering

Book of Abstracts

113 29-31 August 2017

[ABS-214]

Plutonium Recycling in Advanced Nuclear Reactor AP1000 with Thorium Fuel

Abdul Waris1*, Raka F. Baskara2,a , Dwi Irwanto1, Nur Asiah A1, Novitrian1

1Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung

40132, Indonesia 2Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia

*E-mail: awaris@fi.itb.ac.id, araka.firman@students.itb.ac.id

Abstract

Westinghouse has designed an advanced pressurized water reactor AP1000, which

classified as Generation III+ reactor. AP1000 uses uranium as main fuel. However, thorium

nuclide can be used as an alternative for next nuclear reactor fuel because it will produce

less nuclear high level waste and has 3-4 times more abundance compared to uranium. In

this analysis, various concentration of PuO2 together with natural ThO2-UO2 fuel is used

to determine the criticality condition of AP1000. Neutronic calculations have been

performed using SRAC 2006 code system with JENDL 4.0 nuclear data library. The reactor

can achieve the critical condition when the minimum concentration of PuO2 fuel rods of

fuel assembly are 22.5%

Keywords: AP1000, ThO2, Plutonium, SRAC 2006, JENDL 4.0

Topic: Nuclear Science and Engineering

Book of Abstracts

114 29-31 August 2017

[ABS-215]

Plutonium and Minor Actinides Utilization in FUJI-U1 Molten Salt Reactor

Cici Wulandari1, Abdul Waris2*, Sidik Permana2, and Syeilendra Pramuditya2

1Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung, Jl. Ganesa 10 Bandung 40132, Indonesia 2Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa 10 Bandung

40132, Indonesia

*E-mail: awaris@fi.itb.ac.id

Abstract

One type of standard Molten Salt Reactor (MSR) uses graphite as moderator and LiF-BeF2-

ThF4-233UF4 as fuel. Recycling of waste nuclear such as plutonium and minor actinides

are considered as one the effective ways to handle the spent nuclear fuel. Plutonium and

minor actinides utilization in FUJI-U1 type of MSR has been evaluated. MSR FUJI-U1 is

one of small MSR which was designed by Japan. Neutronics calculation was performed

by using PIJ modules of SRAC 2006 code with JENDL 4.0 as nuclear data library. Several

neutronics parameters, such as multiplication factor, conversion ratio and neutron spectrum

are evaluated. Even though there are several types of plutonium, in this study, only reactor

grade plutonium was taken into account.

Keywords: FUJI-U1, Minor Actinide, MSR, Plutonium, SRAC 2006, JENDL 4.0

Topic: Nuclear Science and Engineering

Book of Abstracts

115 29-31 August 2017

[ABS-216]

Simulation of lower plenum material interaction between molten uranium and

control rod guide tube (CRGT) of a BWR during severe accident by using MPS

method

(a) Asril Pramutadi Andi Mustari, (a) Dwi Irwanto

(a) Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl.

Ganesha 10, Bandung, Indonesia

Abstract

Melting process of the Fukushima accident has not been well analyzed due to difficulties

of obtaining information from the BWR reactor. At the lower plenum, BWR reactor is full

of control rod guide tube (CRGT), thus interaction of molten uranium with the CRGT is

most likely to occur during the severe accident. MPS method was proposed to be used to

simulate the process since the method is powerful enough of handling interface with

dynamic transformation. The diffusion coefficients used in this study were 8.0E-9 m2/s and

2.240E-9m2/s for U to Fe and Fe to U, respectively. The temperature of the molten uranium

and SS304 was 1450 C with average distance between particles of about 0.0001 m. The

study found that it takes 3.7 seconds for molten uranium to penetrate 1.1 mm thick CRGT

walls with the penetration rate of 329 um/s.

Keywords: BWR Control Rod Guide Tube (CRGT), severe accident, molten uranium,

MPS (Moving Particle Semi-Implicit)

Topic: Nuclear Science and Engineering

Book of Abstracts

116 29-31 August 2017

[ABS-217]

Comparative Analysis on Fuel Breeding for Less Moderation Ratio of Water-Cooled

Reactor

Sidik Permana *, Asril Pramutadi, Syeilendra Pramuditya, Dwi Irwanto

1Nuclear Physics and Bio Physics Research Group, Bandung Institute of Technology

Gedung Fisika, Jl. Ganesha 10, Bandung 40132, Indonesia.

* Email: psidik@fi.itb.ac.id

Abstract

Nuclear fuel breeding aspect of water-cooled reactor become one of the important issues to

extend the sustainability aspect of nuclear fuel in line with fast breeder reactor program

with closed fuel cycle concept. Utilization of transuranium fuel in water-cooled reactor is

one of the option to optimize nuclear fuel utilization as additional resource fuel in

conjunction with uranium fuel utilization. Fuel sustainability aspect of nuclear fuel will be

analyzed in the present study based on a water cooled reactor with uranium and

transuranium fuels as supply fuels with ligh and heavy water as coolants. Ratio of

moderator to fuel ratio is set to be low arrangement to have more harder spectrum to

enhance fuel breeding capability of water cooled. Some actinides such as plutonium are

investigated to show the composition effect to fuel breeding capability which is based on

plutonium vector composition. Possible fuel breeding capability can be achieved by the

present water cooled reactor for both light and heavy water coolant systems. Higher

possible fuel breeding capability can be achieved for less moderation ratios and some

contributions from recycled fuel of spent fuel. In addition, some plutonium isotopes

contribute to increase fuel breeding capability for both water coolants. Heavy water coolant

has better plutonium production which achieves more fuel breeding because of harder

neutron spectrum. Some transuranium recycling schemes show better fuel breeding

capability as well as more plutonium isotopes production.

Keywords: sustainability, transuranium, water-cooled, fuel breeding, plutonium isotopes

Topic: Nuclear Science and Engineering

Book of Abstracts

117 29-31 August 2017

[ABS-218]

Actinide and Plutonium Composition Analysis on Water-Cooled Reactor

Sidik Permana *, Asril Pramutadi, Syeilendra Pramuditya, Dwi Irwanto

1Nuclear Physics and Bio Physics Research Group, Bandung Institute of Technology,

Gedung Fisika, Jl. Ganesha 10, Bandung 40132, Indonesia.

* Email: psidik@fi.itb.ac.id

Abstract

Reduction volume of spent nuclear fuel (SFN) as well as a program to optimize a re-use

schemes of some SFN can be maintained which has some advantages to be used as

additional fresh nuclear fuel for sustainability of nuclear fuel and for nuclear proliferation

resistance purposes. Some transuranium compositions which consist of plutonium and

minor actinide (MA) give some potentials to be used as recycled fuel which can be

combined with uranium and thorium fuel cycle systems. Fuel sustainability aspect of

nuclear fuel will be analyzed in the present study based on a water cooled reactor with

uranium and transuranium fuels as supply fuels with ligh and heavy water as coolants. Ratio

of moderator to fuel ratio is set to be low arrangement to have more harder spectrum to

enhance fuel breeding capability of water cooled. Some actinides such as plutonium are

investigated to show the composition effect to fuel breeding capability which is based on

plutonium vector composition. Possible fuel breeding capability can be achieved by the

present water cooled reactor for both light and heavy water coolant systems. Higher

possible fuel breeding capability can be achieved for less moderation ratios and some

contributions from recycled fuel of spent fuel. In addition, some plutonium isotopes

contribute to increase fuel breeding capability for both water coolants. Heavy water coolant

has better plutonium production which achieves more fuel breeding because of harder

neutron spectrum. Some transuranium recycling schemes show better fuel breeding

capability as well as more plutonium isotopes production.

Keywords: sustainability, transuranium, water-cooled, fuel breeding, actinides,

plutonium isotopes

Topic: Nuclear Science and Engineering

Book of Abstracts

118 29-31 August 2017

[ABS-2]

OSW-CTST: A Developing Study of Oscillation and Sound Wave-Critical Thinking

Skills Test

Syarif Rokhmat Hidayat (a*), Ida Kaniawati (a), Endi Suhendi (a), Parsaoran Siahaan

(a), Didi Teguh Chandra (a), Achmad Samsudin (a)

a) Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia

Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

*syarif.rokhmat.h@student.upi.edu

Abstract

Now days, the main goal of education in the world is required to promote critical thinking

skills for junior high school students in term of being better future-live. To analyze students

critical thinking skills, we have developed critical thinking test items on Oscillation and

Sound Wave namely Oscillation and Sound Wave-Critical Thinking Skills Test (OSW-

CTST). The aim of this study is to develop the test of critical thinking skills trough

development model. The development model which is utilized is ADDIE (Analyze, Design,

Development, Implementation, and Evaluation). The OSW-CTST items have already been

developed though Enniss indicators of critical thinking skills. The critical thinking

indicators which were utilized in this study are: (1) identifying/formulating the criteria of

possible answers, (2) identifying reasons or premises, (3) explaining the hypotheses, (4)

defining the scientific terms and considering the definitions and (5) choosing the possible

criteria as a solution to the problems. On validity test to experts, the OSW-CTST get score

greater than 4.3 of 5 and 80% of test item are valid based on trials test to some students

Keywords: Developing; Critical-thinking skills; Oscillation and sound wave

Topic: Physics Education

Book of Abstracts

119 29-31 August 2017

[ABS-10]

MITIGATION OF MOUNT MERAPI BASED BY ETHNOSCIENCE

Cherly Salawane (a*), Putut Marwoto (b), Supriyadi (b), Sudarmin (b), Ani Rusilowati

(b)

a. Student of Doctoral Program of Science Education, Graduate Program of Semarang

State University, Semarang 5000, Indonesia.

*salawanecherly@yahoo.co.id

b. Department of Physics, Faculty of Mathematics and Natural Sciences, Semarang State

University, Campus Sekaran Gunungpati, Semarang 50229, Indonesia.

Abstract

Ethnoscience is a system of knowledge and cognition typical of a given culture.

Ethnoscience examines human behavior towards the environment in terms of objects

viewed through cultural aspects and perceptions of local communities. For people living

around the slopes of Mount Merapi, the danger of Merapi eruption is not a serious threat

that should be feared even Merapi eruption is considered as a boon. Until now people still

believe in the myth of Mount Merapi. Ethnosciences approach is used for disaster

mitigation as a step to minimize the risk, as a result of the volcanic activity of Mount

Merapi. The purpose of this study is to analyze local science and scientific science

community to the dangers of Mount Merapi. This type of research is a qualitative research

where data collection is done by observation and depth interviews with people who are on

the slopes of Mount Merapi. Belief in the Guardian of Merapi (ethnoscience) is still very

high, where people still perform ritual ceremonies every year as a form of worship of the

ruler of Mount Merapi. The results show that the ethnoscience or original science

community has a greater impact on disaster mitigation than scientific science. The

community performs the "Upacara Sedekah Gunung Merapi" to offer offerings to Kyai

Petruk or known as "Mbah Petruk" who live in Merapi. Where Mbah Petruk is believed to

be one of the Merapi rulers who give a sign when there will be an eruption or disaster.

When the Merapi eruption occurred in 2010, there was a hot cloud "Wedhus Gembel"

which resembles the head of Mbah Petruk face to the city of Yogjakarta.

Keywords: Ethnoscience, Myth, Mitigation, Mount Merapi

Topic: Physics Education

Book of Abstracts

120 29-31 August 2017

[ABS-34]

Overcoming Senior High School Students Misconceptions on Newtons Laws: A

Dual-Situated Learning Model (DSLM) with Inquiry Learning

Nuzulira Janeusse Fratiwi, Ida Kaniawati, Endi Suhendi, Iyon Suyana, Achmad Samsudin

Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia

Abstract

Now a day, several problems regarding to the misconceptions still occurred in the physics

learning, especially in mechanical concept, such as Newtons Laws. The aim of this research

is to overcoming students misconceptions on Newtons Laws through combining Dual-

Situated Learning Model (DSLM) and inquiry learning. The research has been utilized the

ADDIE model, stands for: Analyzing, Designing, Developing, Implementing and

Evaluating. The subjects who involved in the research are 20 senior high school students

(10 boys and 10 girls, their ages were an average of 16 years-old). The instrument used in

this research is eight question of Four-Tier Newtonian Laws (FTNT). At the developing

phase, we have been developing the Dual-Situated Learning Model (DSLM) which is

combined by inquiry learning. At the evaluating phase, we obtained the data about students

misconceptions of forces concepts are decreased sharply. To sum up, the combining DSLM

and inquiry learning are effective to overcome the misconceptions of senior high school

students on Newtons Laws.

Keywords: Students Misconceptions; Newtons Laws; Dual-Situated Learning Model

(DSLM); Inquiry Learning

Topic: Physics Education

Book of Abstracts

121 29-31 August 2017

[ABS-36]

The Relationship between Students Interest in Bilingual Science Learning and

Students English Competence

Regina Lichteria Panjaitan and Riana Irawati

Universitas Pendidikan Indonesia

Abstract

The correlation of students interest in bilingual science learning and their English

competence was investigated. Forty-four students of elementary-school teacher candidate

program participated in this study. The students received five topics of science (Heat,

Changes in Matters, Plant Life and Environment, Simple Machine, Animal Life and

Environment) with English usage embedded. The students interest in science learning

involving English was examined. Meanwhile, the students mastery of general English was

measured. The result shows that the students interest in bilingual science learning and their

English mastery is not significantly correlated. The finding suggests that the students might

still enjoy and get benefit from bilingual science learning despite their English abilities.

This leads to the opportunity to have more bilingual science classes to enhance not only

students science mastery but also their English competence.

Keywords: bilingual science learning; English competence; interest in bilingual learning

Topic: Physics Education

Book of Abstracts

122 29-31 August 2017

[ABS-38]

The Effect of Higher Order Thinking Virtual Laboratory (HOTVL) in Electric

Circuit on Students Creative Thinking Skills

Sapriadil, Agus Setiawan, Andi Suhandi

Universitas Pendidikan Indonesia

Abstract

Creative thinking skill is one skill that is very needed in the 21st century. Therefore,

development of creative thinking skills through physics teaching and learning is important.

This research applies higher order thinking virtual laboratory (HOTVL) on the topic of

electric circuit to facilitate students

Keywords: higher order thinking laboratory, virtual lab, creative thinking skills, electric

circuit

Topic: Physics Education

Book of Abstracts

123 29-31 August 2017

[ABS-40]

Reducing Eleventh-Grade Students Misconception on Gravity Conceptions using

PDEODE*E-Based Conceptual Change Model

Aldi Zulfikar1, Duden Saepuzaman1, Neni Hermita2, Achmad Samsudin1

1Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia

2Program Studi PGSD, Universitas Riau, Pekanbaru, Indonesia

Abstract

Students misconception is one of learning problems that able to inhibit their learning

achievement. One of the fundamental subjects in the physics learning is a force concept,

such as gravity. This study was conducted to reduce students misconceptions on gravity

concept through PDEODE*E-based Conceptual Change Model (CCM). The gravity

concept in this study is on the falling ball in several different cases.The participants of this

study consisted of 38 eleventh-grade students of Senior High School in Bandung City. The

students misconception was detected using 4-tier formed Force Concept Inventory (FCI)

as the diagnostic instrument test. The result of this study shows that students misconception

on gravity had been reduced from 89% to 50% after using PDEODE*E-based CCM in

learning process. It can be concluded that the utilizing of PDEODE*E-based CCM is able

to reduce students misconception on gravity conceptions.

Keywords: Misconception; Gravity Conceptions; PDEODE*E; Conceptual Change

Model; Force Concept Inventory;

Topic: Physics Education

Book of Abstracts

124 29-31 August 2017

[ABS-41]

OPTIMIZING STUDENTS CONCEPTUAL UNDERSTANDING ON

ELECTRICITY AND MAGNETISM THROUGH COGNITIVE CONFLICT-

BASED MULTIMODE TEACHING (CC-BMT)

Achmad Samsudin1, Andi Suhandi1, Ida Kaniawati1, Dadi Rusdiana1, Aldi Zulfikar1,

Muhamad Himni Muhaemin1, Neni Hermita2, Firmanul Catur Wibowo3

1Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Bandung, Indonesia

2Program Studi PGSD, Universitas Riau, Pekan Baru, Indonesia

3Jurusan Pendidikan Fisika, Universitas Sultan Ageng Tirtayasa, Serang, Banten

Abstract

Conceptual change is one of the international issues that had been studied by many

researchers since three decades ago. Students conceptual understanding could be optimized

through the learning process in classroom. Nevertheless, students still have misconceptions

that noticed the students conceptual change is still not successfully yet. In order to solve

the problem, this study was conducted through mix methods research for 40 educational-

university students that aimed to optimize students conceptual understanding using

cognitive conflict-based multi-mode teaching (CC-BMT) in learning process oriented

conceptual change that concluded with: PDEODE*E worksheet design, simulation and

natural phenomenon-based media, and Conceptual Change Text (CCT). The analyzing of

quantitative data which is analyzed by using normalized gain (N-gain) based on the score

as the result of FCCI diagnostic test is 0.77. The analyzing of qualitative data which is

utilized a codding analysis reports that the students misconceptions (M) 5%; sound

understanding (SU) 57%; partial understanding (PU) 35%; no understanding (NU) 3% after

implementing the CC-BMT learning strategy. It can be concluded that the implementing of

CC-BMT is able to optimize students understanding on electricity and magnetism.

Keywords: students conceptual understanding; electricity and magnetism; CC-BMT

Topic: Physics Education

Book of Abstracts

125 29-31 August 2017

[ABS-42]

A Development of Science Writing Heuristic-based Worksheets to Improve Students

Cognitive on Temperature and Heat

Muhamad Himni Muhaemin1, Aldi Zulfikar1, Neni Hermita2, Parlindungan Sinaga1,

Muslim1, Achmad Samsudin1

1Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia

2 Program Studi PGSD, Universitas Riau, Pekanbaru, Indonesia

Abstract

Approachment is one of the important things to support physics learning process in the

classroom, mainly on temperature and heat subject. Therefore, the researcher implemented

Science Writing Heuristic (SWH) approach simulation in the learning process that had been

shown in Lesson Plan within students worksheets. Science Writing Heuristic approach has

been used to improve students cognitive in the learning process that measured through

observation sheets. This research conducted on tenth-grade students on the senior high

school whose had not get yet the temperature and heat subject. The instrument test utilized

26 cognitive questions (multiple choice) that had been judged by the experts. The result of

this research shows the significant students cognitive improvement amount 65% passed on

pretest and posttest score after they had SWH approach treatment. It could be concluded

that SWH approach simulation have a high potency to improve students cognitive.

Keywords: Science Writing Heuristic Approach; Students Worksheets; Cognitive

Students; Temprature and Heat; Observation Sheets

Topic: Physics Education

Book of Abstracts

126 29-31 August 2017

[ABS-47]

Unpacking Pre-service Physics TeachersUnderstanding of the P-V-T Diagram and

The Associated Mathematics

Duden Saepuzaman1*) , Syakti P. Sriyansyah 2), Saeful Karim 1)

1Physics Education Department , Universitas Pendidikan Indonesia ,

Jl. Dr. Setiabudhi No. 229, Bandung 40154

2Physics Education Department , Postgraduate Schools , Universitas Pendidikan

Indonesia , Jl. Dr. Setiabudhi No. 229, Bandung 40154

Abstract

The P-V-T diagram as macroscopics variable is a mean to understand well the interpretation

of the state of a gas in closed system. In this paper, we focuses on pre-service physics

teachers understanding of the P-V-T diagram and the associated mathematics linked to its

state-function concepts. Data were collected from instrument tes . The instrument tests used

to assess understanding was the ability to apply appropriate concepts about state function

and its graphical and mathematical representation, including to draw, translete and

interprete the P-V-T for thermodynamic processes (isobaric, isothermic, isochoric ,

adiabatic ) and termodynamic cycle (Carnot, Otto, and Diessel cycles) . The number of

participant is 44 students taking Thermodynamics courses. The results showed that 79.6%

of the students were able to make PV diagram for isobaric, isothermic, isochoric and

adiabatic processes. In the other hand, achievment for PT and VT diangram for isobaric,

isothermic, isokermic and adiabatic process respectively 44,1%; 47.9%; 48.2%; And

20.0%. As for the cycles tested include the making of carnot cycle, otto, and diessel. Results

showed 56.3% of the students were able to create PV, PT, and PT charts for the Carnot

cycle, while for the Otto and Diessel cycles the achievement was less than 50%. This data

suggests that there should be an effort to improve the ability of prospective teachers in

understanding PVP diagrams for both process and thermodynamic cycles.

Keywords: Pre-service Physics Teachers, Understanding, P-V-T Diagram, Associated

Mathematics

Topic: Physics Education

Book of Abstracts

127 29-31 August 2017

[ABS-48]

Implementation of HOT Lab to Improve Students

S.A Lisdiani (a*) , A Setiawan (b) , A Suhandi (c)

a) Physics Education Study Program, School of Postgraduate,

*sashrilisdiani@gmail.com

b) Mechanical Engineering Education Department, Faculty of Engineering and

Vocational Education,

c) Physics Education Department, Faculty of Science and Mathematics Education

Universitas Pendidikan Indonesia, Jl. Dr Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract

Students? mastery in critical thinking as part of 21st century skills is important to be

achieved in preparing students to compete in real life challenge. However, based on

previous studies, it is indicated that physics learning activities as part of educational process

has not been successfully achieved the goal. Under those need, a quasi experiment study

with pretest post test control group design was conducted to investigate how is

implementation of Higher Order Thinking (HOT) Lab design in improving students?

critical thinking skills. The result shown that there was significant improvement of

students? critical and creative thinking skills in experimental group compared to those in

control group.

Keywords: HOT lab design, 21st Century Skills, Critical Thinking Skill.

Topic: Physics Education

Book of Abstracts

128 29-31 August 2017

[ABS-50]

Enhancing Students Critical Thinking Skills through Multimedia Based Integrated

Instruction (MBI2) on Solar System Concept

Satria Seto Bhakti (a*), Parsaoran Siahaan (a), Didi Teguh Chandra (a), Endi Suhendi

(a), Ida Kaniawati (a), Achmad Samsudin (a)

a) Universitas Pendidikan Indonesia

Abstract

The solar system is one of the intangible learning materials of science because the

phenomena that occur could not be presented directly in the classroom such as members of

the solar system, the repetition of day and night, the phases of moon, and the eclipse. This

resulted is student difficulties to understanding the solar system concept. To overcome

these problems, the researcher aims to develop learning media that can also enhance the

Critical Thinking Skills (CTS) of students through Multimedia Based Integrated Instruction

(MBI2). MBI2 is an integrated multimedia computer which contains learning materials

including video, animation and simulation, learning tools, e-books and assessment. To

collect and to analyze the data genuinely and comprehensively, researchers utilized a

developing method of 4D which has comprehensive steps the use of define, design,

development, and disseminate. The results of research showed that (1) 78% of students

were able to identifying/formulating the criteria of possible answers, (2) 78% of students

could identifying premises, (3) 84% of students could explaining the hypothesis, (4) 78%

students could identifying assumptions or conclusions, (5) 84% of students could choose

the possible criteria as a solution to the problems. Based on data analysis, it can be

concluded that MBI2 could significantly enhance the critical thinking skills of junior high

school students on solar system.

Keywords: Critical Thinking Skills; MBI2; Solar System Concept

Topic: Physics Education

Book of Abstracts

129 29-31 August 2017

[ABS-51]

Diagnosing High School Students Conceptions on Dynamics-Fluid

Fitri Nurul Sholihat, Muhamad Gina Nugraha, Achmad Samsudin

Universitas Pendidikan Indonesia, Departemen Pendidikan Fisika, Bandung, Indonesia

Abstract

Student conceptions on dynamic-fluid topic have been diagnosed using diagnostic test item.

The main cause of student misconceptions on the concept of physics derived from student

itself. This cause of misconception can be grouped into 8 factors, i.e. preconception,

associative thinking, humanistic thinking, incomplete reasoning, wrong intuition, stage of

cognitive development, ability and interest in learning. The purpose of this study is to

diagnose the student?s conception on dynamic fluid topic. This study used 4-D model

method consisting of 4 stages, namely defining, designing, developing and disseminating.

A total of 29 high school students in Bandung became a sample. The data were analyzed

from 10 multiple choice questions accompanied by open-ended reason (two tier tests) on

the dynamic fluid topic. The results show that students have a tendency to have

misconceptions of dynamics-fluid topic. Therefore, it can be concluded that diagnostic test

items is able to analyze student misconceptions.

Keywords: Diagnostic test, misconceptions, dynamics-fluid

Topic: Physics Education

Book of Abstracts

130 29-31 August 2017

[ABS-53]

The Effects of Higher Order Thinking (HOT) Laboratory Design in Elasticity on

Students Creative Thinking Skills

D Safitri (1*), A Setiawan (2) , and A Suhandi (3)

1 Physics Education Program, Shool of Postgraduate,

2 Departement of Machine Education, Faculty of Engineering and Vocational Education,

3 Departement of Physics Education, Faculty of Science and Mathematics Education

Universitas Pendidikan Indonesia Jl. Dr. Setiabudi No 229, Bandung 40154, Indonesia

Abstract

This research is based on a lack of creative thinking skills of students. Creative thinking as

one of higher order thinking skills is urgently required by everyone to face real world

problems in the 21st century. Therefore, an innovative learning method is needed to train

this skill. This study aims to investigate the effect of implementation of HOT laboratory

design in the topic of elasticity on the creative thinking skills of senior high school students

in Sukabumi city West Java. It was a quasi-experimental study with non-randomized

sampling technique and pretest-posttest control group design. The control group consisted

of 28 students was given verification laboratory while the experimental group consisted of

25 students was given HOT laboratory. Data were collected by using creative thinking

skills test and observation sheet which has been validated by expert. The findings showed

that students who get HOT laboratory significantly have better creative thinking skills than

students who get verification laboratory. It can be concluded that HOT laboratory design

effectively has improved student creative thinking skills

Keywords: HOT Laboratory Design, Creative Thinking Skills

Topic: Physics Education

Book of Abstracts

131 29-31 August 2017

[ABS-61]

Excavating the Quality of Vocational Students` Mental Models and Prediction on

Heat Conduction

Ika Mustika Sari, Dessy Fauzi, Duden Saepuzaman, Dadi Rusdiana

Department of Physics Education, Universitas Pendidikan Indonesia

Abstract

This study aimed to depict of vocational students mental models and the relationship of

mental models with predictive on heat conduction. Participants in this study are 20

vocational students in eleventh grade. The descriptive method was used in this study. The

data were taken using a semi-structured interview with the interview protocol was adopted

and adapted from Chiou and Anderson (2010). The data gathered was analysed by using

constant comparison method. The results showed that there were 11 mental models

emerged in heat conduction (Interaction, Friction, Gear-like interaction, Substance, Heat as

Substance, Energy, Medium, Position, Absorption based Conduction, Numbers of particles

and Sample Based Conduction). More than 90% of students have unscientific mental

models. Moreover there is a complex relationship between mental model with prediction

as it showed by Chiou. Investigating the students mental models on heat conduction of

vocational students have a wide implication in improving the Physics learning in

Vocational School.

Keywords: Mental Model, Heat Conduction, Vocational Students

Topic: Physics Education

Book of Abstracts

132 29-31 August 2017

[ABS-64]

Promoting Conceptual Change in Pre-service Elementary School Teachers

Understanding on Interactions of Neutral and Charged Objects Concept by Using

MMVSCCText

Neni Hermita1,2, Andi Suhandi2,4, Ernawulan Syaodih2,3, Achmad Samsudin4, Aldi

Zulfikar4,Muhamad Himni Muhaemin4,Isjoni5 and Fitria Rosa6

1Universitas Riau, Program Studi PGSD FKIP, Pekanbaru 28293, Indonesia

2Program Studi Pendidikan Dasar, Universitas Pendidikan Indonesia, Bandung 40154,

Indonesia

3Program Studi PGPAUD, Universitas Pendidikan Indonesia, Bandung 40154, Indonesia

4Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Bandung 40154,

Indonesia

5Program Studi Pendidikan Sejarah, Universitas Riau, Pekanbaru 28293, Indonesia

6SMAN 1 Peranap, Indragiri Hulu 29354, Indonesia

Abstract

The aim of this research was to construct and test Multi Media Visual Supported Conceptual Change

Text (MMVSCCText) for promoting pre-service elementary school teachers conceptual change about

the interactions of neutral and charged object concept. The mixed-method was using as a research

method. The study is based on 27 PGSD Program students at FKIP Universitas Riau Indonesia.

Students conception and confidence levels of conception are identified in the first steps of and after

MMVSCCText activity. MMVSCCText was designed based on students misconceptionsby

following six-phase Conceptual Change Model (CCM) synthesized by Stephans. Conceptual change

in students understanding of neutral-charged object interactionwas evaluated by comparing the initial

conceptions of students identified in first steps with the final conception of students identified in

fourth steps, while delayed posttest used to see the consistency of a new conception that students

accommodate. Students conception data were collected by using students worksheet and conception

test in the four tier test format. The results of analyses suggest that MMVSCCText activities promoted

students conceptual change from misconception to scientific conception condition. Students who

initially hold misconception changed to the scientific conception after following MMVSCCText

activity about 84.2%. Most of students (about 73.7%) still hold a scientific conception on delayed

post-test, suggesting that MMVSCCText activity enabled students to retain their new conceptions in

the long-term memory.

Keywords: MMVSCCText, Conceptual Change, interactions of Neutral and charged

object

Topic: Physics Education

Book of Abstracts

133 29-31 August 2017

[ABS-66]

Enhancing Junior High School Students Conceptual Understanding using The POE-

based Demonstration Technique on Static Electricity

Muhammad Guntur Purwanto1*, Asep Sutiadi1, Neni Hermita2, Achmad Samsudin1

1Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Bandung, Indonesia

2 Program Studi PGSD, Universitas Riau, Pekanbaru, Indonesia

Abstract

Predict-Observe-Explain (POE) based Demonstration has been developed to illustrate the

static electricity concepts turn into more factual and purposeful learning. The design of

POE-based demonstration is a technique of learning that allows students to discover the

entire concepts of static electricity in terms of the existing conceptual and practical. To

analyze the data genuinely and comprehensively, we have already utilized a developing

method of ADDIE which has five-extensive phases: 1) analyzing, 2) designing, 3)

developing, 4) implementing and 5) evaluating. The ADDIE developing steps has been

used to define comprehensively from the phase of analysis to the evaluation. The data

shows that junior high school students have three understanding condition, that are,

students who have high understanding is 70%, moderate understanding is 25% and low

understanding is 5%. In conclusion, POE-based demonstration could effectively raise the

concept mastery of static electricity for junior high school.

Keywords: Conceptual Understanding; POE-based Demonstration Technique; Static

Electricity

Topic: Physics Education

Book of Abstracts

134 29-31 August 2017

[ABS-68]

Promoting Oral-Communication Skill of Seventh Grade Student on Earth Science

Content Using Multimedia Based Integrated Instruction (MBI2)

Anggi Hanif Setyadin (a*), Parsaoran Siahaan (b), Achmad Samsudin (c), Endi Suhendi

(d), Ida Kaniwati (e)

Universitas Pendidikan Indonesia

Abstract

Student have to improve their communication skills whereas they are in school and college

to enhance their adaption for the 21-century skills requirement. The aim of this study is

promoting students oral-communication skills through Multimedia Based Integrated

Instruction (MBI2) on earth-science content. The research method that utilized in this

research is embedded mix methods toward 29 seventh grade students that consist of 14

males and 15 females. Oral communication skill rubric based on College of Business

Administration (CBA) San Diego University and International Reading Association is used

to assess students? oral-communication skill. The aspect that assessed in four meeting are

eye contact, intonation of speech, content, enthusiasm, also mannerisms & body language.

The result shows that the average score of five aspect oral-communication skills on every

meeting are 8.40 (earth structure sub-content) that categorized Fair, 13.75 (earthquake sub-

content) that categorized Good, 14.83 (tsunami sub-content) that categorized Good and

15.67 (volcano sub-content) that categorized Good. In conclusion, MBI2 model can

promote oral communication skill of seventh grade student on earth science content.

Keywords: Oral Communication skills, MBI2, Earth Science Content

Topic: Physics Education

Book of Abstracts

135 29-31 August 2017

[ABS-71]

CONSTRUCTING ESSAY QUESTIONS TO ASSESS SCIENTIFIC CREATIVE

AND CRITICAL THINKING SIMULTANEOUSLY RELATED TO COLLISION

PROBLEM BASED ON STUDENTS RESPONSES

Iyon Suyana1), Sarah Nadaipah1), Parlindungan Sinaga1), Selly Feranie1)

1)Universitas Pendidikan Indonesia

Abstract

There are a range of instrument diagnostic tests to investigate students scientific creative

thinking and critically thinking simultaneously, especially on the subject of collision.

However, the majority of the instruments in the form of multiple choice questions which

the mathematical construction. Therefore, this study was conducted to develop an

instrument diagnostic test to diagnose students scientific creative and critical thinking in

the essay questions form. This instrument consists of two items to measure students

scientifict creative thinksing ability and three questions to measure students scientific

critical thinking skills. This instrument development methods execute refers to the

Scientific Structure Creativity Model (SSCM) and the Assessment of Critical Thinking

Ability (ACTA) based on homogeneous 36 tenth grade high school students responses by

open-ended question form. The instruments scientific creative thinking and critically

thinking test have been weathered into 12 tenth grade high school students as the

participants were the results analyzed by comparing with the construction of the model

answers. The results of this study showed that there are a significant development in

scientific creativity and critical on student responses It can be concluded that this

constructed instrument can be used to measure creative thinking and critically thinking

students simultaneously.

Keywords: Essay Questions, Scientifict Creative Thinking, Scientifict Critical Thinking,

Collision Problem

Topic: Physics Education

Book of Abstracts

136 29-31 August 2017

[ABS-72]

ANALYZING STUDENT RESPONSES TO CONSTRUCT OPEN ENDED

QUESTION TO ASSESS SCIENTIFIC CREATIVE AND CRITICAL THINKING

(SCCT-TEST) RELATED TO HYDROSTATIC PRESSURE

Heni Rusnayati1),Nur Oktavianti1),Hera Novia1),Duden Saepuzaman1),Selly Feranie1)

1)Universitas Pendidikan Indonesia

Abstract

Information about students scientific creative thinking and scientific critical thinking skills

is one of the important factorin order to ancillary students learning achievement in the

subjects of physics, including hydrostatic pressure. Therefore, this study was conducted to

identify students scientific creative thinking and scientific critical thinking skills profile

through developing a diagnostic instrument test named Scientific Creative and Critical

Thinking (SCCT) test in the open-ended questions form. The instrument test SCCT consist

of 2 question items about scientific creative thinking and 3 question items about scientific

critical thinking that had been developed based on Scientific Structure Creativity Model

(SSCM) and Assessment of Critical Thinking Ability (ACTA) simultaneously. The

instrument test SCCT had been reconstructed based on every 10 eleventh grade students

responses and model answers with three stages to obtain the students profile scientific

creative thinking and scientific critical thinking skills, so that participants were 30 students.

The findings of this study showed the students scientific creative thinking and scientific

critical thinking skills profile related to the hydrostatic pressure subject. It can be concluded

that the SCCT test as the diagnostic test instruments has the possibly utilized to get students

scientific creative thinking and scientific critical thinking skills profile.

Keywords: Open Ended Questions; Scientific Creative Thinking; Scientific Critical

Thinking; SCCT Test; Hydrostatic Pressure

Topic: Physics Education

Book of Abstracts

137 29-31 August 2017

[ABS-82]

Engaging Students in STEM Based Learning Through Media and Technology

Irma Rahma Suwarma, Ida Kaniawati, Dewi K

Universitas Pendidikan Indonesia

Abstract

Engaging students in physics learning are a challenge for teachers, since few students who

are interested in it. Therefore, STEM based learning that embedded scientific and

engineering practice, was chosen to solve the problem. It has been developing in Indonesia

since 2013 at secondary school level. The implementation evaluation showed that most of

STEM based learning was created through media and technology. These studies were

analyzed students response toward STEM based learning through a media and technology.

The media and technology was invited into electricity learning. 92 students were involved

as samples of this study that cane from two different classes. The analysis result showed

that most of student enjoyed the lesson and eager to engage in other STEM based learning.

Moreover, they agree that media and technology can help them in understanding the

concept. It convinced by the students understanding improvement after the learning

processes

Keywords: STEM based learning, media, technology, and students response

Topic: Physics Education

Book of Abstracts

138 29-31 August 2017

[ABS-89]

Identifying Pre-Service Physics Teacher Mental Model on Electric Conceptions

Supriyatman(a*), Andi Suhandi (b), dan Dadi Rusdiana (b), Achmad Samsudin (b),

Firmanul C. Wibowo (c)

a) Program Studi Pendidikan Fisika, Universitas Tadulako, Palu, Indonesia.

* spymfis.untad@gmail.com

b) Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Bandung, Indonesia.

c) Departemen Pendidikan Fisika,

Universitas Sultan Ageng Tirtayasa, Serang, Indonesia

Abstract

A study was conducted on mental model on electricity (MMoE) of pre-service physics

teachers. This study aims to identify the MMoE of pre-service physics teachers who have

followed the basic physics 2 subject, electricity concept. Researchers employs the

phenomenological method to describe the MMoE profile of pre-service physics teachers.

The data are collected using a problem solving-based test instrument. Instruments used are

a problem solving test modified with five electrical questions given to 49 pre-service

physics teachers. The results showed that the respondents MMoE at level 1 is 50.2%, at

level 2 is 16.7%, at level 3 is as much as 3.3% and 29.8% is not accessible. This profile

suggests that in analyzing the problems, pre-service physics teachers answer the questions

based on intuition and daily experience without using the appropriate concept. Pre-service

physics teacher are not capable of analyzing, accessing, constructing element of the

knowledge gained during the lectures and coherently represents the answer to solve the

problems. Based on the analysis of data and research results, it can be concluded that the

learning that has been applied do not help pre-service physics teachers organizing their

knowledges in solving problems.

Keywords: electricity concept; mental model; pre-service physics teacher; Problem

solving test

Topic: Physics Education

Book of Abstracts

139 29-31 August 2017

[ABS-91]

Developing Science Teaching Materials on The Topic of Stars

Nadia Nur Imania, Dadi Rusdiana, Momo Rosbiono

Student of Postgraduate School Programe

Indonesia University of Education

Abstract

Space science is one of the teaching subject that included in Junior High School curriculum.

Equipped with facilities that support, space science will be more interesting to learn.

Textbooks are one of the teaching materials used to facilitate students in studying the

science of space. Therefore, textbooks or material texts that are prepared in a complete,

systematic, and in accordance with the cognitive and mental development of students is

needed. One of the teaching materials development techniques that can be used is 4 Steps

Teaching Material Development (4S TMD). This technique has four stages, namely

selection, structuring, characterization, and didactic reduction. This study has objectives to

develop the star-themed subject matter and to check its readability by students. The result

for selection stage is learning objectives, and value related content, after validated by

expert, can be used for the next stage. At the second stage, concept map was made to

complete the developed teaching material. Developed teaching material can be used easily

by student, after checked by quisioner.

Keywords: science education, teaching material, 4 SMTD

Topic: Physics Education

Book of Abstracts

140 29-31 August 2017

[ABS-104]

Development of Integrated Science Teaching Material with Webbed Model on

Global Warming Theme for Junior High School Student of Class VII

Yuliana Sari (a*), Harry Firman (b)

a) Faculty of Mathematics and Science Education, Indonesia University of Education,

Jalan Setiabudhi 229, Bandung 40154, Indonesia

* yulianasari.mpd@gmail.com

b) Faculty of Mathematics and Science Education, Indonesia University of Education,

Jalan Setiabudhi 229, Bandung 40154, Indonesia

Abstract

This study was a qualitative study that aims to create the development of Integrated Science

teaching material with an appropriate webbed model for junior high school students of class

VII in SMP 29 Bandung. Teacher creativity is highly expected in developing some

innovative, varied, interesting, contextual, and appropriate teaching materials with the

needs level of learners. This is consistent with the demands of competencies that must be

have by teachers (pedagogic, personality, social and professional competence). The theme

of the teaching materials used is Global Warming, developed with Four Steps Teaching

Material Development (4S TMD) are including: selection, structuring, characterization and

didactic reduction, as the main guidance in the development of this resource. Research

subjects were students (13 years old) in two class VII SMP 29 Bandung, which selected by

purposive sampling technique. The results show this feasibility of teaching materials in

very feasible category for all aspects, namely the content and integrity feasibility aspect,

presentation aspect, linguistic aspect, and graphic aspect. There are improvement

conceptual mastery of Global Warming issues as reflected in the results of concept mapping

by students are getting better at each class meeting. The students also provide positive

perceptions of teaching materials, either through questionnaires or interviews.

Keywords: Development of Teaching Material, Integrated Science, Webbed Model,

Global Warming, Four Steps Teaching Material Development, Concept Mapping

Topic: Physics Education

Book of Abstracts

141 29-31 August 2017

[ABS-107]

The Development of HOT Lab Construction About Heat Transfer

Adam Malik1,2a), Agus Setiawan3, Andi Suhandi4, Anna Permanasari5, Achmad

Samsudin4, Yudi Dirgantara2, Herni Yuniarti2

1 Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229,

Bandung 40154, Indonesia

2 Program Studi Pendidikan Fisika, Universitas Islam Negeri Sunan Gunung Djati

Bandung, Jl. A.H. Nasution No. 105 Cibiru, Bandung 40614, Indonesia

3 Departemen Pendidikan Teknik Mesin, Universitas Pendidikan Indonesia, Jl. Dr.

Setiabudi No. 229, Bandung 40154, Indonesia

4 Departemen Pendidikan Fisika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.

229, Bandung 40154, Indonesia

5 Departemen Pendidikan Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.

229, Bandung 40154, Indonesia

Abstract

The HOT Lab has been developed to enhance pre-service physics teachers? transferable

skills, namely; critical thinking skills. This research aims to develop HOT Lab regarding

the transferable skills in the context of determining pre-service physics teachers? critical

thinking skills about heat transfer. For collecting and analyzing the data comprehensively,

we have ever implemented a development of ADDIE model that have comprehensive steps:

analyzing, designing, developing, implementing, and evaluating. The ADDIE model has

been already utilized to develop comprehensively from the phase of analysis program up

until the evaluation program. Furthermore, the HOT Lab characteristics contain context-

rich issues and should be overcome through 1) doing a practicum, 2) applying the physics

concepts, 3) containing the limitations through problem-solving and 4) demanding creative

and critical thinking in solving problems. Moreover, it has alternative choices of non-trivial

answers and troubleshooting results which are should be presented. The HOT Lab is able

to develop the pre-service physics teaches critical thinking skills of with N-gain 0.69. It can

be concluded that HOT Lab design has been tested and it could effectively improve the pre-

service physics teachers? critical thinking about heat transfer at Prodi Pendidikan Fisika,

UIN Sunan Gunung Djati Bandung.

Keywords: Preliminary Development, HOT Lab, Heat Transfer

Topic: Physics Education

Book of Abstracts

142 29-31 August 2017

[ABS-123]

PREDICT, PLAN, OBSERVE, EXPLAIN AND WRITE (PPOEW): A STRATEGY

TO PREVENT STUDENTS? MISCONCEPTIONS ON WORK AND ENERGY

TOPICS

Dedah Siti Jubaedah, Nuzulira Janeusse Fratiwi, Ida Kaniawati, Iyon Suyana, Achmad

Samsudin and Endi Suhendi

Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung

40154, Indonesia

Abstract

This research based on students? misconceptions on work and energy topics. Students?

misconceptions could be prevented through Predict, Plan, Observe, Explain and Write

(PPOEW) strategy on their learning. This research methodology was conducted in a quasi-

experimental design with one group of pre-test and post-test for 18 students consist of 13

girls and 5 boys as research subjects. The four-tier test used as an instrument to identified

student?s misconception on Work and Energy topics that has been developed in previous

research. The data analysis focused on how effective was the PPOEW with computer

simulation to reduce students? misconception in the concept of positive energy, negative

energy, conservative and nonconservative energy, work-kinetic energy theorem, and

energy conservation law. According to the result of the research, PPOEW reduces students?

misconception from 52,22% to 14,44%. In addition, PPOEW also increased student?s

concept shown by an N-gain value that about 0,5 (medium).

Keywords: four-tier test, misconception, PPOEW

Topic: Physics Education

Book of Abstracts

143 29-31 August 2017

[ABS-124]

Simulated Analysis of Image Formation for Concave Mirror with Scilab by Using

The Concept of Calculus

Erwin Randjawali (a*) and Robi D. Riupassa (b)

a) Universitas Kristen Wira Wacana Sumba

Jalan R. Suprapto No. 35, Waingapu 87113, Indonesia

erwinrandjawali@gmail.com

b) Sekolah Tinggi Teknologi Bandung

Jalan Soekarno Hatta No. 378, Bandung 40235, Indonesia

Abstract

The location and height of an image produced by the reflection of an object on a concave

mirror can be obtained by analytic, and also by geometry. However, if the formation of the

image is drawn on a regular blackboard, it will give inaccurate results. Therefore we need

a media which can provide an accurate results. One of the media that can be used is

computer. The utilization of computer as a medium of learning has been proven can attract

interest and motivation of student to study physics. One way to use it as medium is by

creating a simulation which is related to the topic being taught. The simulation is made by

using the physics concepts about optical geometry in concave mirror, computation of

science, and the equations of lines on calculus. The application which are used in this

simulation is Scilab 6.0.0 and simplescreenrecorder 0.3.8. In this simulation, two models

are designed to create the image of concave mirror reflection. In the first model, the tip of

the special rays is described precisely about the curvature of the concave mirror, while in

the second model, the end of the rays are drawn up to the line s=0 In addition to produce

a learning media, this simulation also aims to compare which model gives the same result

as the result obtained analytically. Result of the simulation shows that the first model has a

considerable difference when compared with analytic result. By using R=20cm, s=25cm,

dan h=5cm. We get error calculation of s′ about 3,533% and h′ about 2,650%. The error of

s′ and h′ in the first model quite vary according to the value of s and h which are used.

However, the second model gives the same result as the analytic calculation. So, the second

model is better to illustrate the image formation of the concave mirror. This simulation also

proves that it is easier to describe the formation of an image on the concave mirror when

the mirror is considered as a straight line.

Keywords: simulation, concave mirror, scilab

Topic: Physics Education

Book of Abstracts

144 29-31 August 2017

[ABS-141]

Diagnosis of Student?s Misconception in Momentum and Impulse after Inquiry with

Computer Simulation (ICS) Learning

Shita Ayu Amalia, Nuzulira Janeusse Fratiwi, Achmad Samsudin, Ida Kaniawati, Endi

Suhendi*

Departemen Pendidikan Fisika FPMIPA UPI, Jalan Setiabudi No 299, Bandung 40154

*endis@upi.edu

Abstract

Misconceptions often happen to the concept of momentum and impulse. A learning model

that is considered appropriate to overcome misconceptions is the inquiry learning model.

Computer simulation is using in this research for help inquiry learning model. The purpose

of this research is to know the profile of student misconception after applying inquiry

learning. This research uses descriptive analytics. The study was conducted on 20 high

school students (7 boys and 13 girls) of class X in Bandung. Misconceptions are detected

using the Momentum and Impulse Four-Tier Test (MIFT) instrument. Based on the results

of the study, it is found that there are still 6.43% of students experiencing misconceptions

on the material momentum and impulse.

Keywords: Misconception, Momentum and Impulse Four-Tier Test (MIFT), Descriptive

Analytics.

Topic: Physics Education

Book of Abstracts

145 29-31 August 2017

[ABS-151]

Realization of Null-type Bridge instrument to determine water level to anticipate

flood using Enquiry-Based Learning

Mohamad Reza Nurrahman (1), Andi Gumarilang Cakti (1), Kevin Misrano (1), Elfi

Yuliza (1), Khairurrijal Khairurrijal (1,2*)

1) Departmen of Physics,

2) Master Program in Physics Teaching,

Faculty of Mathematics and Natural Science, Institut Teknologi Bandung

Jalan Ganesa 10, Bandung 40312.

*Email: krijal@fi.itb.ac.id

Abstract

Teaching method and quality of teacher is some factors that determine quality of education.

One of learning method to increase students understanding is EBL (Enquiry-Based

Learning). EBL is one term of active learning method with students as centre of learning

and teacher as facilitator to give advice and direction. EBL place students questions, ideas,

and observations as the centre of learning. In this method, students worked in a group to

learn through a process of enquiry by a stimulus question from teacher. EBL combines

cooperative learning, problem solving, and enquiry to discovery a problem. The purpose of

this method is to develop a student that can think critically, improve skill in research,

analyse, evaluate, and make a conclusion to answer the problem. In this paper, EBL method

was used to improve understanding in null-type measurement by Bridge circuit as variable

conversion to determine the level of water and its application. In this method, a group is

formed that consist three students to enquire that topic. There are six steps that have done:

1. stimulation, a stimulus question from a teacher, 2. problem statement, driving questions

to be solved and making hypothesis, 3. data collection, searching information and doing

experiments, 4. data processing, analysing the data, 5. verification, making sure student has

solve their equations, 5. conclusion, answering the questions and presenting the result of

enquiry. Based on this series of steps, it can be shown that d.c. Bridge circuit with LDR

(light dependent resistor) as a sensor can be used to measure water level with type-null for

anticipating flood.

Keywords: EBL, Null-type Bridge, LDR, Water Level

Topic: Physics Education

Book of Abstracts

146 29-31 August 2017

[ABS-178]

Making Humidity Meter Based on Null-type D.C. Bridge: A Project-Based Learning

Azka Zakiyyatuddin(1*), Nona Avena Purba(1), Hadyan Luthfan(1), Elfi Yuliza(1),

Khairurrijal(1,2)

1) Department of Physics

2) Master Program in Physics Teaching

Faculty Mathematics and Natural Science, Institut Teknologi Bandung

Jalan Ganesa 10, Bandung 40312, Indonesia

E-mail: krijal@fi.itb.ac.id

Abstract

Abstract. Project-based learning (PBL) is a comprehensive perspective focused on

investigation. The basis of PBL lies in the authenticity or real-life application of the

research. Basically, PBL promotes the idea of ?learning by doing.? Within this method, the

solutions of problems are acquired by asking and refining questions, debating idea to

answer the question, making predictions, designing plans and experiments, collecting and

analyzing data, and finally draw the conclusions. Using these steps, we can easily

understand how to solve the problems through a project. In this paper, we report a project

about humidity meter based on null-type D.C. bridge circuit that has been made by a group

of three students. The students? group was assisted by a lecturer and a tutor. Due to this

project, we learned more materials than we thought we would. We learned about teamwork,

critical thinking, problem-solving, and soldering.

Keywords: PBL, Null-type, Humidity Meter

Topic: Physics Education

Book of Abstracts

147 29-31 August 2017

[ABS-179]

Digital Intensity Meter Based on Deflection-type D.C. Bridge Realized Using Project

Based Learning Approach

Muhammad Iqbal Rahmadhan Putra (a), Muhammad Reza Ramadhani Raharja (a),

Enggar Lokshewara Renanda (a), Elfi Yuliza (a), and Khairurrijal Khairurrijal (a,b*)

(a) Department of Physics,

(b) Master Program in Physics Teaching,

*E-mail: krijal@fi.itb.ac.id

Faculty of Mathematics and Natural Science, Institut Teknologi Bandung

Jalan Ganesa 10, Bandung 40312, Indonesia

Abstract

Project based learning (PjBL) is a learning method that focuses on problem-solving through

specific projects to create an understanding of what relationships are learned in the

classroom and real-life. In other words, PjBL is learning by doing. There are five steps in

PjBL method; 1) Find the driving questions, 2) Explore the driving questions to learn and

apply important ideas, 3) Collaborate actively with the lecturer, the tutor, and other students

to investigate questions and ideas, 4) Use technology to help the understanding process, 5)

Create a real product that leads to driving questions and publish it. In this paper, PjBL

method was used for making a simple intensity meter based on deflection-type D.C. bridge

circuit. This project was completed by a collaboration of a group of three students with a

lecturer and a tutor as a facilitator. With the series of steps in this method, students got a

better way to learn and to understand the course and also to be able to make a simple

instrument for measure the light intensity. In this project, a light dependent resistor (LDR)

was utilized to convert light intensity to the resistance of the bridge circuit. In order to make

the values of intensity is straightforward to be read, Arduino Uno was employed to convert

the analog data to digital and to display the result on LCD.

Keywords: PjBL, deflection-type D.C. Bridge, intensity meter, LDR

Topic: Physics Education

Book of Abstracts

148 29-31 August 2017

[ABS-185]

Challenge-based Learning Model with Reading Infusion Strategy in Physics

instruction : Study of Literature

Ririn Utami, Ida Kaniawati, Irma Rahma Suwarma

Universitas Pendidikan Indonesia

Abstract

This study aims to develop the cognitive skill and problem-solving skill in Junior High

School based on curriculum 2013. This paper discusses how the Challenge-based learning

model with reading infusion strategy applied in the physics instruction. A model and

strategy in learning that improve the cognitive skill, and problem-solving skill. The result

of this research is very possible for teachers to insert challenge-based learning model with

reading infusion in class instruction to improve cognitive skill and problem-solving skill.

A study of literature is used in this study as a preliminary study. On other occasion, a

research can be done to prove the effectiveness of using challenge-based learning model

with reading infusion strategy in physics learning.

Keywords: Challenge-based learning model, reading infusion strategy

Topic: Physics Education

Book of Abstracts

149 29-31 August 2017

[ABS-189]

Shifting from Physics Teacher to Basic-Science Teacher: Adequate or Not? (a self-

study)

Regina Lichteria Panjaitan

Universitas Pendidikan Indonesia

Abstract

For years, basic concepts of physics were taught in Universitas Pendidikan Indonesia as a

subject in primary-school teacher candidate program. Nonetheless, since 2015/2016 school

year that course was removed from the program curriculum and basic-science enrichment

is a new subject instead. Basic-science enrichment subject contains basic physics, basic

chemistry and basic biology and all of them are simply in one course. Meanwhile, the

author who has physics educational background and usually taught basic concept of physics

should teach basic science including basic chemistry and biology. This paper is a result of

a self-study research as self-reflection on teaching that elaborates the advantages and

drawbacks of being a teacher with physics educational background, but eventually should

immerse herself in a basic science (not-only physics) teaching and learning environment.

Some questionnaire results from the students about the impressions they got from the

teacher related to this case were also discussed.

Keywords: physics teaching, science teaching, science self-study, self-reflection on

teaching

Topic: Physics Education

Book of Abstracts

150 29-31 August 2017

[ABS-210]

Making Counter Clockwise Analog Thermometer Under Project-Based Learning

Method

Natasha Flaminggo1, Rafi Candra1, Anisa Natalia1, Elfi Yuliza1, Khairurrijal

Khairurrijal1,2,a)

1Department of Physics,

2Master Program in Physics Teaching,

Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung

Jalan Ganesa 10, Bandung 40132, Indonesia

Abstract

The basis of this project was to explore a different kind of thermometer using a

semiconductor material with an analog counter clockwise reading. The semiconductor

material we used was a negative temperature coefficient (NTC) thermistor, and it was

implemented in a deflection-type D.C bridge circuit. To complete this project, we followed

some series of steps from Project-Based Learning (PBL) method. First, we acquired

knowledge about D.C bridge circuit types from Measurement and Data Processing

Techniques course. Next, we decided about the problem to be solved, that is to create a

thermometer using the semiconductor material with deflection-type D.C bridge circuit.

Then, we started to collect data from an experiment and made the counter clockwise analog

thermometer. Finally, we presented our project to lecturer and tutor to get feedback about

our project. Upon completion of the assignment we found that for displaying data

measurement from NTC thermistor, the counter clockwise display was the most

appropriate.

Keywords: Counter clockwise, Analog thermometer, D.C. Bridge, NTC, PBL

Topic: Physics Education

Book of Abstracts

151 29-31 August 2017

[ABS-13]

Cosmological inflation with minimal and non-minimal coupling of scalar field from

Horndeski theory

Getbogi Hikmawan (1), Agus Suroso (1,2), Freddy P. Zen (1,2)

1. Theoretical Physics Laboratory, THEPI Division, Faculty of Mathematics and Natural

Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia.

2. Indonesia Center for Theoretical and Mathematical Physics(ICTMP), Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung

40132, Indonesia.

Abstract

We consider a cosmological model with combination of minimal and non-minimal

coupling of scalar field by considering a set of particular coefficient function from

Horndeski theory. We study cosmological inflation from the background solution and get

the responsible coupling constant regarding the slow-roll inflation parameters. Then we

compare the result with the stability conditions to get the exact value of coupling constant

for this cosmological model.

Keywords: Inflation, Horndeski Theory, Cosmology

Topic: Theoretical High Energy Physics

Book of Abstracts

152 29-31 August 2017

[ABS-15]

Low Amplitude Kink Soliton Excitation in Peyrard-Bishop-Dauxois Double Strand

DNA Model

Donny Dwiputra(a*), Wahyu Hidayat(a,b), Freddy Permana Zen(a,b)

a) Theoretical Physics Laboratory, Faculty of Mathematics and Natural Sciences, Institut

Teknologi Bandung Jl. Ganesha no. 10 Bandung, 40132, Indonesia

b) Indonesian Center of Theoretical and Mathematical Physics (ICTMP), Indonesia

*donny.dwiputra@s.itb.ac.id

Abstract

We investigate the feasibility and appearance of a kink-like soliton solution in Peyrard-

Bishop-Dauxois double-strand DNA model by applying the method Zdravkovi&#263; et

al [Chaos Soliton Frac. 45, 1378 (2012)]. We extend the method to a perturbative case,

resulting in a low amplitude solution. The importance of the kink excitation is to describe

the propagating open state of DNA chain which has a significant role in DNA transcription

and replication processes. In this paper, we study the feasibility conditions of a kink-like

excitation to appear in DNA chain.

Keywords: Nonlinear dynamics; DNA; Kink soliton; Peyrard-Bishop model

Topic: Theoretical High Energy Physics

Book of Abstracts

153 29-31 August 2017

[ABS-16]

Killing Vectors of Extremal Kerr Black Holes

M. F. A. R. Sakti*, A. Suroso, and F. P. Zen

*Theoretical Physics Division, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung

40132, Indonesia

Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Jl. Ganesha 10

Bandung 40132, Indonesia

Abstract

Kerr black holes are strong candidates for the astrophysical black holes. The understanding

of the microscopic structure of this black hole is quite interesting to be investigated. The

holography principle is one way to study the microscopic part of Kerr black holes. There

have been a conjecture that there is a duality between near-horizon geometry of extremal

Kerr black hole and the conformal field theory (CFT) on its boundary of the horizon, called

by Kerr/CFT correspondence. Here, we review this correspondence where in the

background geometry, boundary conditions are found for which the algebra of surface

charges enhances the U(1) to one copy of the Virasoro algebra with central charge c=12J.

After finding the temperature from the chemical potential, which is T=1/2π the entropy is

obtained from the Cardy formula. Finally, the entropy from the Cardy formula agrees with

the Bekenstein-Hawking entropy of the extremal Kerr black hole.

Keywords: kerr black hole, CFT, extremal, entropy

Topic: Theoretical High Energy Physics

Book of Abstracts

154 29-31 August 2017

[ABS-17]

Dynamical System of Kaluza-Klein Brane Cosmology with Gauss-Bonnet Term in a

Bulk

Irsan rahman (a*), Bansawang B.J (b), Agus Suroso (a,c), Tasrief Surungan (b), Freddy

P. Zen (a,c)

a) Theoretical Physics Laboratory, THEPI Division, Faculty of Mathematics and Natural

Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia

*irsan275@yahoo.co.id

b) Department of Physics, Universitas Hasanuddin, Makassar 90245, Indonesia

c)Indonesia Center for Theoretical and Mathematical Physics (ICTMP), Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung

40132, Indonesia

Abstract

brane-world cosmological model in higher-dimensional spacetime is studied with

additional Gauss-Bonnet term in the bulk. By using Gauss-Codazzi equations, we derive

the (4+n)-dimensional gravitational field equations. The (4+n)-dimensional gravitational

field equations can be formulated to general Einstein field equation with Gauss-Bonnet

term and extra component. In the following, we take FRW metric and choose a relation

between the external and internal scale factors of the form b(t)=aγ(t) in which the brane

world evolves with two scale factors. Finally, a dynamical analysis is performed to

determine the stability of this model.

Keywords: Kaluza-Klein; Gauss-Bonnet; brane-world; dynamical system; cosmology

Topic: Theoretical High Energy Physics

Book of Abstracts

155 29-31 August 2017

[ABS-18]

The Damping Effect on Energy Transfer in Alpha-helical Proteins with the

Interspine Interaction

Imam A Ramadhan (a*), Susan F Rohmah (a), Siti Latifah (a), Donny Dwiputra (a),

Wahyu Hidayat (a),(b), and Freddy P Zen (a),(b)

a) Theoretical Physics Laboratory, Faculty of Mathematics and Natural Sciences, Institut

Teknologi Bandung, Jl. Ganesha no. 10, Bandung, 40132, Indonesia

*imamramadhan@students.itb.ac.id

b) Indonesian Center of Theoretical and Mathematical Physics (ICTMP), Indonesia

Abstract

The mechanism of energy transfer in alpha-helical protein was modeled by Davydov and

Scott. The interspine interaction between the three channels of alpha-helical protein and

damping effect on the probability amplitude of amide-I energy is investigated in this paper.

The study resulted a set of three coupled non-linear Schrodinger equation. The resulting

coupled NLS is analyzed by Hirota Bilinear Method. The nature of the energy transfer

along the protein is studied.

Keywords: Alpha-helical protein, Coupled Nonlinear Schrodinger equation, Soliton

Topic: Theoretical High Energy Physics

Book of Abstracts

156 29-31 August 2017

[ABS-19]

Time-Dependent Damping Effect for the Dynamics of DNA Transcription

Susan F. Rohmah (1), Imam A. Ramadhan (1), Siti Latifah (1), Donny Dwiputra (1),

Wahyu Hidayat (1,2), Freddy P. Zen (1,2)

(1) Theoretical Physics Laboratory, Faculty of Mathematics and Natural Sciences,

Instritut Teknologi Bandung Jl. Ganesha

(2) Indonesian Center of Theoretical and Mathematical Physics (ICTMP), Indonesia

E-mail: susanferdianti@gmail.com

Abstract

DNA is an interesting macromolecule to study because it plays a role in the body of living

beings. A computerized system is performed to analyze the viscosity of fluid around the

DNA. The viscosity around the DNA changes over time. This paper modified the Peyrard-

bishop (PB) DNA model by involving time-dependent damping. Damping on this model is

considered a time-dependent perturbation. DNA Breathing is expressed in the damping

nonlinear schrodinger (DNLS) equation and then the variation of the parameters in the

analysis using the variational method. This paper show time-dependent damping causes

changes in the amplitude and width of the DNA soliton wave.

Keywords: Dynamics of DNA, soliton wave, DNLS, the variational method

Topic: Theoretical High Energy Physics

Book of Abstracts

157 29-31 August 2017

[ABS-23]

The Effect of Solvent Viscosity Change on the Nonlinear Dynamics of U-Model

Microtubules

Siti Latifah1, Susan F Rohmah, Imam A Ramadhan, Donny Dwiputra1, Wahyu

Hidayat1,2, and Freddy P Zen1,2

1Theoretical Physics Laboratory, Faculty of Mathematics and Natural Sciences, Bandung

of Technology Institute, Jalan Ganesha no. 10, Bandung, 40132, Indonesia

2Indonesian Center of Theoretical and Mathematical Physics (ICTMP), Indonesia

Abstract

Microtubules are hollow cylindrical protein polymers made up of tubulin dimers and

executives in cellular dynamics. To establish the function of living cells, microtubules

assemble and disassemble. The experimental results show that the microtubules assemble

by growing elongated and closure into a cylindrical polymer when its length is 400nm,

glycerol inhibits the closure of the sheet into a tubule and the longer the closing rate

decreases, and disassemble when its length is 6,5&#956;m. This model describes the

nonlinear dynamics of U-model microtubules that are influenced by the change of solvent

viscosity. The system dynamics model is described by the kink-soliton solution obtained

by using modified extended tanh-function methode (METH). Modeling results show that

as time passes,the solvent viscosity changes, the velocity change.

Keywords: U-model of microtubules, solvent, kink-soliton, modified extended tanh-

function methode (METH)

Topic: Theoretical High Energy Physics

Book of Abstracts

158 29-31 August 2017

[ABS-29]

Fast-forward of entanglement dynamics

Iwan Setiawan, Bobby Eka Gunara, Katsuhiro Nakamura

Institut Teknologi Bandung

Abstract

We propose a scheme of the exact fast-forwarding of quantum spin dynamics. The present

idea is started from Masuda-Nakamura (e.g., Proc. R. Soc. A 466, 1135 (2010)). We shall

consider fast-forward of adiabatic spin dynamics by using a combination of opposite idea

of infinitely-large time multiplication and infinitesimally-slow adiabatic dynamics. It

allows the acceleration of the wave function from non-entanglement state to entanglement

state throughout the fast-forward by generating fast- forward Hamiltonian which include

counterdiabatic term. We investigated several examples : Anisotropic XY model, Ising

transverse model, and Ising transverse model with general magnetic field, by which we

obtain the counterdiabatic Hamiltonian to guarantee the fast-forward scheme.

Keywords: Fast-forward, spin dynamics, entanglement

Topic: Theoretical High Energy Physics

Book of Abstracts

159 29-31 August 2017

[ABS-44]

Phenomenology of Minimal Composite Double Higgs Model

Bayu Adi Nugraha Putra*, Jusak Sali Kosasih

Institut Teknologi Bandung

Jalan Ganesha 10, Bandung 40132, Indonesia

*bayu.adi.n.p@students.itb.ac.id

Abstract

Higgs mechanism was a method to give mass into all particle in Standard Model. In 2012

research center CERN had detect Higgs particle with mass around 125 GeV. This data was

not suitable with calculation, where in high energy there are radiative correction to Higgs

mass, so that Higgs have extremely heavy mass (hierarchy problem). Because of that reason

there must be new theory that can describe this phenomena, one of the theory is composite

Higgs model where Higgs was a composite from Goldstone boson from symmetry

breaking. Using composite Higgs model for minimal case and some modification to double

Higgs model.

Keywords: Composite Higgs, Hierarchy Problem, Peskin-Takeuchi parameter

Topic: Theoretical High Energy Physics

Book of Abstracts

160 29-31 August 2017

[ABS-63]

The Field Localization of Yukawa Interaction in a Modified Randall-Sundrum

Model

Dewi Wulandari 1,2), Triyanta 2), Jusak S. Kosasih 2), Douglas Singleton 3)

1) Physics Department, Universitas Negeri Medan, Jalan Willem Iskandar, Pasar V,

Medan Estate 20221, Indonesia.

2) Theoretical High Energy Physics and Instrumentation Research Division, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10

Bandung 40132, Indonesia.

3) Physics Department, California State University Fresno, 2345 East San Ramon Avenue

M/S 37, Fresno, California 93740-8031, USA

Abstract

We study the localization properties of spinor field coupled to scalar field through Yukawa

coupling in a Modified Randall-Sundrum (MRS) model. We derive general localization

conditions in order to localize this system and solve the solution of field equation

corresponding to extra dimension. We obtain that the spinor and scalar fields are localizable

on the MRS brane for specific conditions with a decreasing warp factor.

Keywords: field localization, 5D braneworld model, Yukawa interaction

Topic: Theoretical High Energy Physics

Book of Abstracts

161 29-31 August 2017

[ABS-119]

Modified Geroch Mass of Two-Surfaces Embedded in Three-Manifolds

F.C. Radjabaycolle(a,b*), F.T. Akbar(a), and B.E. Gunara(a)

a) Theoretical Physics Laboratory, Theoretical High Energy Physics and Instrumentation

Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi

Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia

b) Department of Physics, Faculty of Mathematics and Natural Sciences,

Universitas Cenderawasih, Jl. Kampwolker Kampus Uncen Baru Waena,

Jayapura 99351, Indonesia

*flinnradj@gmail.com

Abstract

In this paper, we study several aspects of the modified Geroch functional m_{MG}(\Sigma)

of two-dimensional surface \Sigma embedded in three-dimensional manifold (M,g). We

parameterized the embedding by a parameter t and using the modified Geroch functional

f_{MG}(\Sigma), we prove that m_{MG}(\Sigma) is non-decreasing under the inverse

mean curvature flow. We also study the stability of \Sigma using the second variation of

the modified Geroch functional with respect to t and finally compare our result with the

previous work of Maximo and Nunes.

Keywords: Geroch mass; Geroch functional; Mean Curvature; Inverse Mean Curvature

Flow; Scalar Curvature

Topic: Theoretical High Energy Physics

Book of Abstracts

162 29-31 August 2017

[ABS-131]

Stability Condition on 4-Dimensional Upper-Half Plane Metric

Rio N. Wijaya (a*), Fiki T. Akbar (a), Bobby E. Gunara (a,b)

a) Theoretical High Energy Physics and Instrumentation Research Group, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10,

Bandung 40132, Indonesia

* rionatanael@students.itb.ac.id

b) Indonesian Center for Theoretical and Mathematical Physics (ICTMP)

Abstract

In this paper, we consider four-dimensional upper-half plane metric, which is a

generalization of Joyce metric. We analyze the metric through Riemann-Hilbert action with

general potential V(A,B) and find its stability condition through the Hessian matrix of

Hamiltonian. On a special case, we also consider the upper-half plane metric which depends

only on one variable and the upper-half plane part is a function of the other part. In this

special case, we find that the metric cannot be Einstein in critical point.

Keywords: Hessian, upper-half plane, Riemann-Hilbert action

Topic: Theoretical High Energy Physics

Book of Abstracts

163 29-31 August 2017

[ABS-134]

Maxwell-Klein-Gordon system with nontrivial coupling on four dimensional

Minkowski spacetime

Fiki Taufik Akbar, Bobby Eka Gunara

Theoretical High Energy Physics and Instrumentation Research Group, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung

Abstract

In this paper, we study about Maxwell-Klein-Gordon system with non-trivial coupling in

four dimensional Minkowski spacetime with potential turned on. We start from Lagrangian

of non-trivially coupled Maxwell-Klein-Gordon, then we derive the equations of motion

and energy of the system. The coupling and potential function is chosen such that the

Lagrangian is gauge invariant. Using Coulomb gauge and conservation of energy, we prove

some inequality for energy which will be important to proving the existence of solution.

Keywords: Maxwell-Klein-Gordon, Gauge invariant, Non trivial coupling

Topic: Theoretical High Energy Physics

Book of Abstracts

164 29-31 August 2017

[ABS-137]

Kerr-de Sitter metrics in higher dimensions

Ramadhiansyah, Bobby Eka Gunara

Institut Teknologi Bandung

Abstract

We analyze general Kerr-de Sitter metrics in all dimensions given by the works of Gibbons

et al. General Kerr-de Sitter metric in space-time dimension D≥4 with the maximal number

(D−1)/2 of independent rotation parameters, was given in Kerr-Schild form, in terms of the

sum of a de Sitter metric plus the square of a null-geodesic vector and in generalized Boyer-

Lindquist coordinates. In this metric, we have verified that Einstein equations are satisfied

for dimensions D≤11 and discuss the structure of the metrics. Furthermore, we discuss the

formulas for the surface gravities and areas of the event horizons.

Keywords: Einstein equations, Kerr-de Sitter metrics, Event horizons

Topic: Theoretical High Energy Physics

Book of Abstracts

165 29-31 August 2017

[ABS-171]

Local existence of scalar wave equation on deSitter universe as a background

Muhammad Iqbal, Fiki Taufik Akbar, Bobby Eka Gunara

Institut Teknologi Bandung

Abstract

In this paper, we study about the wellposedness of scalar wave equation on de-Sitter

universe as a background with nonmininal coupling. The nonminimal coupling is motivated

by Higgs inflation scenario. We start from non-minimal Lagrangian for scalar field on

curved background with potential turned on. Then we derive the equations of motion and

tensor energy-momentum. Finally, we prove the local existence and uniqueness for the

equations of motion.

Keywords: Wellposedness, non-minimal coupling, de Sitter

Topic: Theoretical High Energy Physics

Book of Abstracts

166 29-31 August 2017

[ABS-183]

Field Localization for the 5-Dimensional Nonminimal Derivative Coupling of Scalar

Field with Modified Randall-Sundrum Model

Muhammad Rizka Taufani, Agus Suroso, Freddy Permana Zen

Institut Teknologi Bandung

Abstract

Among the extra dimension models, Randall-Sundrum(RS) model is one of the most

famous examples for its well--addressing of the hierarchy problems. However, study [1]

has introduced the modified RS model which more superior due to its better localization

for scalar, vector, and spinor fields. This study uses five dimensional Eintein tensor coupled

scalar field or Non Minimal Derivative Coupling(NMDC) of scalar field, such model has

been studied widely for GR and cosmological purpose, and verifying its localizaion

properties using the modified RS model by taking the warp factor k is equal to zero. The

result is the five dimensional NMDC of scalar field is localized, additionally NMDC term

is turned into minimal coupling term.

Keywords: NMDC, Randall-Sundrum model, scalar field localization

Topic: Theoretical High Energy Physics

Book of Abstracts

167 29-31 August 2017

[ABS-197]

Neutral Pion Photoproduction on the Proton in the Effective Lagrangian Approach

Siti Ani Apriyani(a*), Agus Salam(a*), Imam Fachruddin(b), Zulhaji(b)

Department of Physics, FMIPA Universitas Indonesia, Kampus UI Depok, Depok 16424,

Indonesia

Abstract

We investigate the neutral pion photo-production off the proton by using the effective

Lagrangian approach at the tree level. This model contains the Born terms, vector mesons

term, and nucleon resonances $P_33$, $P_11$, and $S_11$. The hadronic form factors are

also considered to refine the model. We calculate various cross sections at photon energies

up to 1 GeV. The value of the parameters are determined by fitting the observables form

theoretical calculation to the experimental data.

Keywords: photo-production; effective Lagrangian; nucleon resonances

Topic: Theoretical High Energy Physics

Book of Abstracts

168 29-31 August 2017

[ABS-198]

Canonical Quantization of Geometrized Classical Mechanics

David Senjaya, Jusak Sali Kosasih

Laboratorium Fisika Teoretik,

Kelompok Keilmuan Fisika Teoretik Energi Tinggi dan Instrumentasi,

Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Bandung,

Jl. Ganesha no. 10 Bandung, Indonesia, 40132

Abstract

A particle in 3D space with certain given potential will move curved like a comet moves in

ellipse trajectory because of gravitation potential caused by the star. A free particle in

curved space also moves curved following shape of that space. In this paper, it will be

discussed how to link the potential energy of particles Lagrangian with the space metric so

the formulation of classical mechanics in geometric term can be found and also the

canonical quantization of it will be done. At the last part of this paper there will be one

example how to seek space metric related with a particle under isotropic harmonic oscillator

potential in spherical coordinate and then do the canonical quantization and then seek the

allowed energy level and of course the eigen function.

Keywords: Geometry, mechanics, lagrangian, hamiltonian, harmonic oscillator

Topic: Theoretical High Energy Physics

Book of Abstracts

169 29-31 August 2017

[ABS-219]

The effect of external potential to thermodynamical properties of a longitudinal

microtubules

W. Hidayat 1a,d, A. Sulaiman 2b,d, S. Viridi3c,d, F.P. Zen 4a,d

aTheoretical High Energy Physics and Instrumentations Research Division, Faculty of

Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 40132,

Indonesia. bGeostech Laboratory, Badan Pengkajian dan Penerapan Teknologi, Jakarta, Indonesia.

cNuclear Physics and Biophysics Research Division, Faculty of Mathematics and Natural

Sciences,Institut Teknologi Bandung, Indonesia, Bandung 40132, Indonesia. dIndonesia Center for Theoretical and Mathematical Physics (ICTMP), Bandung 40132,

Indonesia

Abstract

This paper reports a dynamical of Microtubules (MTs), a biological polymer essential in

cell, that are hollow cylinders usually formed by 13 parallel protofilaments (PFs) covering

it. We use Hamiltonian model by adding solvent effect in term of external potential. By

numerical analysis, we set the variation of viscousity parameters to observe propagation

energy, hence the obtaining results are many different kinds of solitonic types. We also

study the termodynamical properties by employing the transfer integral methods and

numerical methods (Path Integral Monte Carlo) to calculate partition function. Hence, we

calculate specific heat capacity to analyse MTs assembly. We find that the slowly

increasing value of specific heat capacity correspond to significant viscousity parameters.

Keywords: Microtubules, Hamiltonian Model, External Potential, Transfer Integral,

PIMC.

Topic: Theoretical High Energy Physics

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