junhwi bak - 東京大学 · 32ndinternationalsymposiumonspacetechnologyandscience(ists)...

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Junhwi Bak PH.D. · IN AERONAUTICS AND ASTRONAUTICS 710 Ross St Texas A&M Univ. HRBB 620D, College Station, TX 77843 +1-(979)-422-4265 | [email protected] | al.t.u-tokyo.ac.jp/members/junhwib | | junhwib | Junhwi_Bak | Junhwi Bak | Born in South Korea Education The University of Tokyo Tokyo, Japan PH. D IN THE FIELD OF AERONAUTICS AND ASTRONAUTICS Sep. 2016 - Sep. 2019 The University of Tokyo Tokyo, Japan M. ENG. IN THE FIELD OF AERONAUTICS AND ASTRONAUTICS Oct. 2014 - Sep. 2016 Seoul National University Seoul, S.Korea B.S. IN MECHANICS AND AEROSPACE ENGINEERING Mar. 2006 - Feb. 2014 Skills Languages Korean - Mother tongue · English - Fluent · Japanese - Fluent Programming MATLAB · LabVIEW · FORTRAN · LaTeX · Mathematica Work Experiences Optical Probing & Manipulation group, Texas A&M University College Station, TX, USA POSTDOCTORAL RESEARCHER · LAB HEAD: DR. ALEXANDROS GERAKIS Jan. 2020 - Current Komurasaki Laboratory, The University of Tokyo Tokyo, Japan POSTDOCTORAL RESEARCHER · LAB HEAD: PROF. KIMIYA KOMURASAKI Sep. 2019 - Dec. 2019 Laboratory for Plasma Nanosynthesis, Princeton Plasma Physics Laboratory (PPPL) Princeton, NJ, USA VISITING STUDENT RESEARCH COLLABORATOR · LAB HEAD: DR. YEVGENY RAITSES Sep. 2016 - Oct. 2016 Research Experiences Applications of Single Shot Coherent Rayleigh-Brillouin Scattering (CRBS) College Station, TX, USA POSTDOCTRAL RESEARCHER · SUPERVISOR: DR. ALEXANDROS GERAKIS Jan. 2020 - Current • Application of coherent Rayleigh-Brillouin scattering (CRBS) on diagnostics of neutral gas velocity and temperatures. Realizaitonn of CRBS under plasma environment. Electron Transport with Azimuthally Inhomogenous Plasma Properties in a Hall thruster Tokyo, Japan PRINCIPAL RESEARCHER · SUPERVISOR: PROF. KIMIYA KOMURASAKI Nov. 2016 - Dec. 2019 • Study on how azimuthal non-uniform plasma parameters induced by azimuthal neutral inhomogeneity in an anode layer thruster influence on electron transport in Hall thrusters plasma. Conducted plasma diagnostics (electrostatic probes) and numerical simulation. • Selected publication: https://doi.org/10.1063/1.5090931 Laser Induced Incandescence (LII) Signal Modeling to Carbon Arc Discharge Environment Princeton, NJ, USA VISITING STUDENT RESEARCH COLLABORATOR · SUPERVISOR: DR. SHURIK YATOM Sep. 2016 - Oct. 2016 • Application of Laser Induced Incandescence (LII) signal modeling to carbon arc discharge environment. Simulation of nanoparticle tempera- ture/size simulation taking account into the Mie-regime. • Selected publication: https://dx.doi.org/10.1016/j.carbon.2017.02.055 Magnetic Plasma Deorbit System for Nano- and Micro-satellites Tokyo, Japan RESEARCH ASSISTANT · SUPERVISOR: DR. REI KAWASHIMA Dec. 2015 - Sep. 2017 • Research on developing magnetic plasma deorbit system using magnetic torque interference with space plasma. Worked on adjusting a pre- developed electromagnetic particle-in-cell code to simulate the interference between satellite body and space plasma. • Selected publication: https://doi.org/10.2514/1.A34040 Discharge Oscillation Characteristic of an Anode Layer Hall Thruster Tokyo, Japan RESEARCH ASSISTANT · SUPERVISOR: PROF. KIMIYA KOMURASAKI Jul. 2015 - Jul. 2016 • Built characteristic maps of discharge oscillation amplitude and anode efficiency of anode layer thruster. Observed the relation between mag- netic topology and thruster performance. Location Determination of a Deployable Part of Satellites by Using a Magnetic Sensor Tokyo, Japan RESEARCH ASSISTANT · SUPERVISOR: DR. TAKAYA INAMORI Apr. 2015 - Dec. 2015 • Worked on developing a location determination program with MATLAB, which utilizes the magnetic field generated by magnetic coils on the satellites and estimates of the location of a magnetic sensor on a deployable part on the satellites. JULY 14, 2020 J. BAK · CURRICULUM VITAE 1

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Page 1: Junhwi Bak - 東京大学 · 32ndInternationalSymposiumonSpaceTechnologyandScience(ISTS) Fukui,Japan Y.HAMADA,J.BAK,R.KAWASHIMA,K.KOMURASAKIANDH.KOIZUMI 15th–21stJun.2019

Junhwi BakPHD middot IN AERONAUTICS AND ASTRONAUTICS

710 Ross St Texas AampM Univ HRBB 620D College Station TX 77843 +1-(979)-422-4265 | junhwibtamuedu | altu-tokyoacjpmembersjunhwib

| | junhwib | Junhwi_Bak | Junhwi Bak | Born in South Korea

EducationThe University of Tokyo Tokyo JapanPH D IN THE FIELD OF AERONAUTICS AND ASTRONAUTICS Sep 2016 - Sep 2019

The University of Tokyo Tokyo JapanM ENG IN THE FIELD OF AERONAUTICS AND ASTRONAUTICS Oct 2014 - Sep 2016

Seoul National University Seoul SKoreaBS IN MECHANICS AND AEROSPACE ENGINEERING Mar 2006 - Feb 2014

SkillsLanguages Korean - Mother tongue middot English - Fluent middot Japanese - FluentProgramming MATLAB middot LabVIEW middot FORTRAN middot LaTeX middot Mathematica

Work ExperiencesOptical Probing ampManipulation group Texas AampMUniversity College Station TX USAPOSTDOCTORAL RESEARCHER middot LAB HEAD DR ALEXANDROS GERAKIS Jan 2020 - Current

Komurasaki Laboratory The University of Tokyo Tokyo JapanPOSTDOCTORAL RESEARCHER middot LAB HEAD PROF KIMIYA KOMURASAKI Sep 2019 - Dec 2019

Laboratory for Plasma Nanosynthesis Princeton Plasma Physics Laboratory (PPPL) Princeton NJ USAVISITING STUDENT RESEARCH COLLABORATOR middot LAB HEAD DR YEVGENY RAITSES Sep 2016 - Oct 2016

Research ExperiencesApplications of Single Shot Coherent Rayleigh-Brillouin Scattering (CRBS) College Station TX USAPOSTDOCTRAL RESEARCHER middot SUPERVISOR DR ALEXANDROS GERAKIS Jan 2020 - Currentbull Application of coherent Rayleigh-Brillouin scattering (CRBS) on diagnostics of neutral gas velocity and temperatures Realizaitonn of CRBSunder plasma environment

Electron Transport with Azimuthally Inhomogenous Plasma Properties in a Hall thruster Tokyo JapanPRINCIPAL RESEARCHER middot SUPERVISOR PROF KIMIYA KOMURASAKI Nov 2016 - Dec 2019bull Study on how azimuthal non-uniform plasma parameters induced by azimuthal neutral inhomogeneity in an anode layer thruster influence onelectron transport in Hall thrusters plasma Conducted plasma diagnostics (electrostatic probes) and numerical simulation

bull Selected publication httpsdoiorg10106315090931

Laser Induced Incandescence (LII) Signal Modeling to Carbon Arc Discharge Environment Princeton NJ USAVISITING STUDENT RESEARCH COLLABORATOR middot SUPERVISOR DR SHURIK YATOM Sep 2016 - Oct 2016bull Application of Laser Induced Incandescence (LII) signal modeling to carbon arc discharge environment Simulation of nanoparticle tempera-turesize simulation taking account into the Mie-regime

bull Selected publication httpsdxdoiorg101016jcarbon201702055

Magnetic Plasma Deorbit System for Nano- and Micro-satellites Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR DR REI KAWASHIMA Dec 2015 - Sep 2017bull Research on developing magnetic plasma deorbit system using magnetic torque interference with space plasma Worked on adjusting a pre-developed electromagnetic particle-in-cell code to simulate the interference between satellite body and space plasma

bull Selected publication httpsdoiorg1025141A34040

Discharge Oscillation Characteristic of an Anode Layer Hall Thruster Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR PROF KIMIYA KOMURASAKI Jul 2015 - Jul 2016bull Built characteristic maps of discharge oscillation amplitude and anode efficiency of anode layer thruster Observed the relation betweenmag-netic topology and thruster performance

Location Determination of a Deployable Part of Satellites by Using a Magnetic Sensor Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR DR TAKAYA INAMORI Apr 2015 - Dec 2015bull Worked on developing a location determination program with MATLAB which utilizes the magnetic field generated by magnetic coils on thesatellites and estimates of the location of a magnetic sensor on a deployable part on the satellites

JULY 14 2020 J BAK middot CURRICULUM VITAE 1

Interplanetary Attitude Control SystemUsing IMF in Small Sized Spacecraft Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR DR TAKAYA INAMORI Mar 2015 - Apr 2015bull Research on an attitude control system for nano-spacecraft using amagnetic torque generated by an electromagnetic coil under an interplan-etary magnetic field

bull Worked on analysing solar wind magnetic field from OMNI data by using MATLAB

Experiment of an Iodine-fed Hall Thruster with Anode Layer Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR PROF KIMIYA KOMURASAKI Oct 2014 - Aug 2015bull Built an iodine feed systembeing automatically controlledby LabVIEW tested its validity and carriedout the thruster operationwith the system

Journal PublicationsDischarge characteristics and increased electron current during azimuthally nonuniformpropellant supply in an anode layer Hall thruster Selected as rdquoEditorrsquos Pickrdquo

Journal of Applied PhysicsVol128 No2 023302 (2020)

J BAK B VAN LOO R KAWASHIMA AND K KOMURASAKIbull 10106315144851

Characterization of acceleration zone shifting in an anode-layer-type Hall thruster RAIJIN66 VacuumY HAMADA R KAWASHIMA J BAK K KOMURASAKI AND H KOIZUMI Under review

Plasma formation and cross-field electron transport induced by azimuthal neutral inhomogeneityin an anode layer Hall thruster

Physics of PlasmasVol26 No7 073505 (2019)

J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull 10106315090931

Particle simulation of plasma drag force generation in themagnetic plasma deorbit Journal of Spacecraft and RocketsR KAWASHIMA J BAK S MATSUZAWA AND T INAMORI Vol 55 No 5 pp 1074-1082 (2018)bull 1025141A34040 bull 180506123

Two-dimensional modeling of the Hall thruster discharge with nonuniform propellant supply inazimuth

Front Appl Plasma TechnolVol 11 No 1 pp 7-12 (2018)

R KAWASHIMA J BAK K KOMURASAKI AND H KOIZUMIbull 180506120v1

Hall thruster development for Japanese space propulsion programs Trans Japan Soc Aero Space SciY HAMADA J BAK R KAWASHIMA H KOIZUMI K KOMURASAKI N YAMAMOTO Y EGAWA I FUNAKI S IIHARA S CHO KKUBOTA H WATANABE K FUCHIGAMI Y TASHIRO Y TAKAHATA T KAKUMA Y FURUKUBO AND H TAHARA

Vol 60 No 5 p 320-326 (2017)

bull 102322tjsass60320

Detection of nanoparticles in carbon arc discharge with laser-induced incandescence CarbonS YATOM J BAK A KHRABRYI AND Y RAITSES Vol 117 pp 154-162 (2017)bull 101016jcarbon201702055

Plasma properties in a Hall thruster with azimuthal non-uniform propellant supply Applied plasma scienceJ BAK R KAWASHIMA M MIZUKAWA K KOMURASAKI AND H KOIZUMI Vol 25 No 1 pp 9-14 (2017)bull 1034377aps251_9

Operation characteristics of 5-kW class RAIJIN Hall thruster J of Japan Soc Aero Space SciY HAMADA J BAK K KOMURASAKI Y EGAWA N YAMAMOTO Y TAKAHATA T KAKUMA Y FURUKUBO AND H TAHARA Vol 65 No2 pp 82-86 (2017)bull 102322jjsass6582

Suppression of plume divergence in anode layer type Hall thruster withmagnetic shielding byimprovement of magnetic field topology in channel

Applied plasma scienceVol 24-1 pp 3-8 (2016)

M MIZUKAWA J BAK Y HAMADA K KOMURASAKI R KAWASHIMA AND H KOIZUMI

ConferencesThe 12th International Symposium on Applied Plasma Science (ISAPS) Yamanashi JapanR KAWASHIMA Y HAMADA J BAK AND K KOMURASAKI 24th - 28th Sep 2019bull Hybrid PIC simulation of a thruster with anode layer with self-consistent electron transport modelY HAMADA J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull Ionization zone shifting downstream at high propellant flow density in RAIJIN66

36th International Electric Propulsion Conference (IEPC) Vienna AustriaJ BAK B VAN LOO R KAWASHIMA K KOMURASAKI AND H KOIZUMI 15th - 20th Sep 2019bull Electron cross-field transport mechanisms observed under the azimuthally inhomogeneous neutral supply in a Hall thrusterJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull Low frequency ionization oscillation model with azimuthal dimension in a Hall thrusterR KAWASHIMA J BAK Y HAMADA B VAN LOO H KOIZUMI AND K KOMURASAKIbull Coupled simulation of two-dimensional hybrid Hall thruster models

34th International Conference on Phenomena in Ionized Gases (ICPIG) Sapporo JapanJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 14th - 19th Jul 2019bull Study on electron cross-field drift by an azimuthal electric-field in Hall thrusters from plasma density and potential structures

JULY 14 2020 J BAK middot CURRICULUM VITAE 2

32nd International Symposium on Space Technology and Science (ISTS) Fukui JapanY HAMADA J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 15th ndash 21st Jun 2019bull Probe diagnosis of RAIJIN66 thrusterR KAWASHIMA Y HAMADA J BAK B VAN LOO K KOMURASAKI AND H KOIZUMIbull Two-dimensional hybrid models of the plasma discharge in an anode-layer Hall thruster

2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP) Kanazawa JapanJ BAK R KAWASHIMA B VAN LOO K KOMURASAKI AND H KOIZUMI 12th ndash 17th Nov 2018bull Investigation of electron cross-field transport in Hall thrusters with inhomogeneity of plasma density and potential in azimuth

71st Annual Gaseous Electronics Conference Portland OR USAS YATOM A GERAKIS A KHRABRY J BAK H BELANGER M SHNEIDER J MITRANI I KAGANOVICH A KHODAK BSTRATTON V VEKSELMAN AND Y RAITSES

5th - 9th Nov 2018

bull In situ approaches for diagnostics of nanoparticles in plasmas

54th AIAASAEASEE Joint Propulsion Conference (JPC) Cincinnati OH USAJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 9th ndash 11th Jul 2018bull Effect of density inhomogeneity in azimuth on discharge oscillation suppression and electron diffusion in Hall thrusters

35th International Electric Propulsion Conference (IEPC) Atlanta GA USAR KAWASHIMA J BAK K KOMURASAKI H KOIZUMI AND K HARA 8th ndash 12th Oct 2017bull Effect of azimuthal non-uniformity on the Hall thruster discharge

69th Annual Gaseous Electronics Conference Bochum GermanyS YATOM J BAK JM MITRANI MN SHNEIDER BC STRATTON AND Y RAITSES 10th ndash 14th Oct 2016bull Investigation of nanoparticles formation in carbon arc with Laser Induced Incandescence (LII)

52nd AIAASAEASEE Joint Propulsion Conference (JPC) Salt Lake City UT USAJ BAK Y HAMADA Y HIRANO K KOMURASAKI T SCHOumlNHERR AND H KOIZUMI 25th ndash 27th Jul 2016bull Operational properties of UT-58 anode layer Hall thruster with modified magnetic field and guard-ring material

Space Propulsion 2016 Rome ItalyT SCHOumlNHERR Y HIRANO J SUZUKI S AKAGI J BAK R KAWASHIMA AND K KOMURASAKI 2nd ndash 6th May 2016bull Erosion reduction measures in anode layer type Hall thruster

8th Asian Joint Conference on Propulsion and Power (AJCPP) Kagawa JapanY HAMADA Y HIRANO J BAK R KAWASHIMA T SCHOumlNHERR K KOMURASAKI AND H KOIZUMI 16th -19th Mar 2016bull Thrust performance measurement of high-power RAIJIN Hall thruster using improved dual pendulum thrust stand

37th IEEE Aerospace Conference Big Sky MT USAT INAMORI K IWANAGA J BAK AND P SAISUTJARIT 5th -12th Mar 2016bull Interplanetary attitude control system using IMF in a small sized spacecraft

Workshops amp SeminarsJul 29-Aug 2 2019 9th East-Asia School andWorkshop on Laboratory Space and Astrophysical Plasmas Nagoya JapanMar 9 2017 Small Satellite Intrsquol Cooperation Seminar (Invited) held by Nagoya Univ Nagoya JapanApr2015 - Mar2016 Participant of monthly workshop held by EACAT (East Asian Circle of Applied Technology) Kanagawa Japan

Grants amp AwardsApr2018 - Dec2019 Grant-in-Aid for JSPS Fellows (18J14592) by Japan Society for the Promotion of Science (JSPS) RecipientNov 2018 AAPPS-DPP Poster Prize (AAPPS-DPP 2018) by Association of Asia Pacific Physical Societies (AAPPS) Recipient

Scholarships amp FellowshipsOct 2019 - Dec 2019 Research Fellowship for Young Scientists PD by Japan Society for the Promotion of Science (JSPS) RecipientApr 2018 - Sep 2020 Research Fellowship for Young Scientists DC2 by Japan Society for the Promotion of Science (JSPS) RecipientApr 2014 - Mar 2018 Postgraduate Scholarship by Japanese Government (MonbukagakushoMEXT) Recipient2013 Fall Undergraduate Scholarship by Dongbu Cultural Foundation Recipient2008 Alumni Overseas Activity Scholarship by College of Engineering Seoul National University Recipient2006-2009 National Science and Engineering Scholarship by Korea Student Aid Foundation Recipient

Other ActivitiesSep 2013 Winner in themenrsquos 50m butterfly at Seoul National University swimming competition Seoul SKoreaSep 2013 - Feb 2014 Teaching volunteer for low-income group students Bundo Gongbubang Seoul SKoreaMay 2012 - Jan 2013 Language training abroad Got Cambridge ESOL Certificate in Advanced English Level C1 London UKDec 2009 - Oct 2011 Military service in 2nd Armored Brigade ROK Army Paju SKoreaApr 2008 - Mar 2009Exchange student at Arakawa amp Komurasaki Laboratory The University of Tokyo Tokyo Japan

JULY 14 2020 J BAK middot CURRICULUM VITAE 3

Page 2: Junhwi Bak - 東京大学 · 32ndInternationalSymposiumonSpaceTechnologyandScience(ISTS) Fukui,Japan Y.HAMADA,J.BAK,R.KAWASHIMA,K.KOMURASAKIANDH.KOIZUMI 15th–21stJun.2019

Interplanetary Attitude Control SystemUsing IMF in Small Sized Spacecraft Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR DR TAKAYA INAMORI Mar 2015 - Apr 2015bull Research on an attitude control system for nano-spacecraft using amagnetic torque generated by an electromagnetic coil under an interplan-etary magnetic field

bull Worked on analysing solar wind magnetic field from OMNI data by using MATLAB

Experiment of an Iodine-fed Hall Thruster with Anode Layer Tokyo JapanRESEARCH ASSISTANT middot SUPERVISOR PROF KIMIYA KOMURASAKI Oct 2014 - Aug 2015bull Built an iodine feed systembeing automatically controlledby LabVIEW tested its validity and carriedout the thruster operationwith the system

Journal PublicationsDischarge characteristics and increased electron current during azimuthally nonuniformpropellant supply in an anode layer Hall thruster Selected as rdquoEditorrsquos Pickrdquo

Journal of Applied PhysicsVol128 No2 023302 (2020)

J BAK B VAN LOO R KAWASHIMA AND K KOMURASAKIbull 10106315144851

Characterization of acceleration zone shifting in an anode-layer-type Hall thruster RAIJIN66 VacuumY HAMADA R KAWASHIMA J BAK K KOMURASAKI AND H KOIZUMI Under review

Plasma formation and cross-field electron transport induced by azimuthal neutral inhomogeneityin an anode layer Hall thruster

Physics of PlasmasVol26 No7 073505 (2019)

J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull 10106315090931

Particle simulation of plasma drag force generation in themagnetic plasma deorbit Journal of Spacecraft and RocketsR KAWASHIMA J BAK S MATSUZAWA AND T INAMORI Vol 55 No 5 pp 1074-1082 (2018)bull 1025141A34040 bull 180506123

Two-dimensional modeling of the Hall thruster discharge with nonuniform propellant supply inazimuth

Front Appl Plasma TechnolVol 11 No 1 pp 7-12 (2018)

R KAWASHIMA J BAK K KOMURASAKI AND H KOIZUMIbull 180506120v1

Hall thruster development for Japanese space propulsion programs Trans Japan Soc Aero Space SciY HAMADA J BAK R KAWASHIMA H KOIZUMI K KOMURASAKI N YAMAMOTO Y EGAWA I FUNAKI S IIHARA S CHO KKUBOTA H WATANABE K FUCHIGAMI Y TASHIRO Y TAKAHATA T KAKUMA Y FURUKUBO AND H TAHARA

Vol 60 No 5 p 320-326 (2017)

bull 102322tjsass60320

Detection of nanoparticles in carbon arc discharge with laser-induced incandescence CarbonS YATOM J BAK A KHRABRYI AND Y RAITSES Vol 117 pp 154-162 (2017)bull 101016jcarbon201702055

Plasma properties in a Hall thruster with azimuthal non-uniform propellant supply Applied plasma scienceJ BAK R KAWASHIMA M MIZUKAWA K KOMURASAKI AND H KOIZUMI Vol 25 No 1 pp 9-14 (2017)bull 1034377aps251_9

Operation characteristics of 5-kW class RAIJIN Hall thruster J of Japan Soc Aero Space SciY HAMADA J BAK K KOMURASAKI Y EGAWA N YAMAMOTO Y TAKAHATA T KAKUMA Y FURUKUBO AND H TAHARA Vol 65 No2 pp 82-86 (2017)bull 102322jjsass6582

Suppression of plume divergence in anode layer type Hall thruster withmagnetic shielding byimprovement of magnetic field topology in channel

Applied plasma scienceVol 24-1 pp 3-8 (2016)

M MIZUKAWA J BAK Y HAMADA K KOMURASAKI R KAWASHIMA AND H KOIZUMI

ConferencesThe 12th International Symposium on Applied Plasma Science (ISAPS) Yamanashi JapanR KAWASHIMA Y HAMADA J BAK AND K KOMURASAKI 24th - 28th Sep 2019bull Hybrid PIC simulation of a thruster with anode layer with self-consistent electron transport modelY HAMADA J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull Ionization zone shifting downstream at high propellant flow density in RAIJIN66

36th International Electric Propulsion Conference (IEPC) Vienna AustriaJ BAK B VAN LOO R KAWASHIMA K KOMURASAKI AND H KOIZUMI 15th - 20th Sep 2019bull Electron cross-field transport mechanisms observed under the azimuthally inhomogeneous neutral supply in a Hall thrusterJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMIbull Low frequency ionization oscillation model with azimuthal dimension in a Hall thrusterR KAWASHIMA J BAK Y HAMADA B VAN LOO H KOIZUMI AND K KOMURASAKIbull Coupled simulation of two-dimensional hybrid Hall thruster models

34th International Conference on Phenomena in Ionized Gases (ICPIG) Sapporo JapanJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 14th - 19th Jul 2019bull Study on electron cross-field drift by an azimuthal electric-field in Hall thrusters from plasma density and potential structures

JULY 14 2020 J BAK middot CURRICULUM VITAE 2

32nd International Symposium on Space Technology and Science (ISTS) Fukui JapanY HAMADA J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 15th ndash 21st Jun 2019bull Probe diagnosis of RAIJIN66 thrusterR KAWASHIMA Y HAMADA J BAK B VAN LOO K KOMURASAKI AND H KOIZUMIbull Two-dimensional hybrid models of the plasma discharge in an anode-layer Hall thruster

2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP) Kanazawa JapanJ BAK R KAWASHIMA B VAN LOO K KOMURASAKI AND H KOIZUMI 12th ndash 17th Nov 2018bull Investigation of electron cross-field transport in Hall thrusters with inhomogeneity of plasma density and potential in azimuth

71st Annual Gaseous Electronics Conference Portland OR USAS YATOM A GERAKIS A KHRABRY J BAK H BELANGER M SHNEIDER J MITRANI I KAGANOVICH A KHODAK BSTRATTON V VEKSELMAN AND Y RAITSES

5th - 9th Nov 2018

bull In situ approaches for diagnostics of nanoparticles in plasmas

54th AIAASAEASEE Joint Propulsion Conference (JPC) Cincinnati OH USAJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 9th ndash 11th Jul 2018bull Effect of density inhomogeneity in azimuth on discharge oscillation suppression and electron diffusion in Hall thrusters

35th International Electric Propulsion Conference (IEPC) Atlanta GA USAR KAWASHIMA J BAK K KOMURASAKI H KOIZUMI AND K HARA 8th ndash 12th Oct 2017bull Effect of azimuthal non-uniformity on the Hall thruster discharge

69th Annual Gaseous Electronics Conference Bochum GermanyS YATOM J BAK JM MITRANI MN SHNEIDER BC STRATTON AND Y RAITSES 10th ndash 14th Oct 2016bull Investigation of nanoparticles formation in carbon arc with Laser Induced Incandescence (LII)

52nd AIAASAEASEE Joint Propulsion Conference (JPC) Salt Lake City UT USAJ BAK Y HAMADA Y HIRANO K KOMURASAKI T SCHOumlNHERR AND H KOIZUMI 25th ndash 27th Jul 2016bull Operational properties of UT-58 anode layer Hall thruster with modified magnetic field and guard-ring material

Space Propulsion 2016 Rome ItalyT SCHOumlNHERR Y HIRANO J SUZUKI S AKAGI J BAK R KAWASHIMA AND K KOMURASAKI 2nd ndash 6th May 2016bull Erosion reduction measures in anode layer type Hall thruster

8th Asian Joint Conference on Propulsion and Power (AJCPP) Kagawa JapanY HAMADA Y HIRANO J BAK R KAWASHIMA T SCHOumlNHERR K KOMURASAKI AND H KOIZUMI 16th -19th Mar 2016bull Thrust performance measurement of high-power RAIJIN Hall thruster using improved dual pendulum thrust stand

37th IEEE Aerospace Conference Big Sky MT USAT INAMORI K IWANAGA J BAK AND P SAISUTJARIT 5th -12th Mar 2016bull Interplanetary attitude control system using IMF in a small sized spacecraft

Workshops amp SeminarsJul 29-Aug 2 2019 9th East-Asia School andWorkshop on Laboratory Space and Astrophysical Plasmas Nagoya JapanMar 9 2017 Small Satellite Intrsquol Cooperation Seminar (Invited) held by Nagoya Univ Nagoya JapanApr2015 - Mar2016 Participant of monthly workshop held by EACAT (East Asian Circle of Applied Technology) Kanagawa Japan

Grants amp AwardsApr2018 - Dec2019 Grant-in-Aid for JSPS Fellows (18J14592) by Japan Society for the Promotion of Science (JSPS) RecipientNov 2018 AAPPS-DPP Poster Prize (AAPPS-DPP 2018) by Association of Asia Pacific Physical Societies (AAPPS) Recipient

Scholarships amp FellowshipsOct 2019 - Dec 2019 Research Fellowship for Young Scientists PD by Japan Society for the Promotion of Science (JSPS) RecipientApr 2018 - Sep 2020 Research Fellowship for Young Scientists DC2 by Japan Society for the Promotion of Science (JSPS) RecipientApr 2014 - Mar 2018 Postgraduate Scholarship by Japanese Government (MonbukagakushoMEXT) Recipient2013 Fall Undergraduate Scholarship by Dongbu Cultural Foundation Recipient2008 Alumni Overseas Activity Scholarship by College of Engineering Seoul National University Recipient2006-2009 National Science and Engineering Scholarship by Korea Student Aid Foundation Recipient

Other ActivitiesSep 2013 Winner in themenrsquos 50m butterfly at Seoul National University swimming competition Seoul SKoreaSep 2013 - Feb 2014 Teaching volunteer for low-income group students Bundo Gongbubang Seoul SKoreaMay 2012 - Jan 2013 Language training abroad Got Cambridge ESOL Certificate in Advanced English Level C1 London UKDec 2009 - Oct 2011 Military service in 2nd Armored Brigade ROK Army Paju SKoreaApr 2008 - Mar 2009Exchange student at Arakawa amp Komurasaki Laboratory The University of Tokyo Tokyo Japan

JULY 14 2020 J BAK middot CURRICULUM VITAE 3

Page 3: Junhwi Bak - 東京大学 · 32ndInternationalSymposiumonSpaceTechnologyandScience(ISTS) Fukui,Japan Y.HAMADA,J.BAK,R.KAWASHIMA,K.KOMURASAKIANDH.KOIZUMI 15th–21stJun.2019

32nd International Symposium on Space Technology and Science (ISTS) Fukui JapanY HAMADA J BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 15th ndash 21st Jun 2019bull Probe diagnosis of RAIJIN66 thrusterR KAWASHIMA Y HAMADA J BAK B VAN LOO K KOMURASAKI AND H KOIZUMIbull Two-dimensional hybrid models of the plasma discharge in an anode-layer Hall thruster

2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP) Kanazawa JapanJ BAK R KAWASHIMA B VAN LOO K KOMURASAKI AND H KOIZUMI 12th ndash 17th Nov 2018bull Investigation of electron cross-field transport in Hall thrusters with inhomogeneity of plasma density and potential in azimuth

71st Annual Gaseous Electronics Conference Portland OR USAS YATOM A GERAKIS A KHRABRY J BAK H BELANGER M SHNEIDER J MITRANI I KAGANOVICH A KHODAK BSTRATTON V VEKSELMAN AND Y RAITSES

5th - 9th Nov 2018

bull In situ approaches for diagnostics of nanoparticles in plasmas

54th AIAASAEASEE Joint Propulsion Conference (JPC) Cincinnati OH USAJ BAK R KAWASHIMA K KOMURASAKI AND H KOIZUMI 9th ndash 11th Jul 2018bull Effect of density inhomogeneity in azimuth on discharge oscillation suppression and electron diffusion in Hall thrusters

35th International Electric Propulsion Conference (IEPC) Atlanta GA USAR KAWASHIMA J BAK K KOMURASAKI H KOIZUMI AND K HARA 8th ndash 12th Oct 2017bull Effect of azimuthal non-uniformity on the Hall thruster discharge

69th Annual Gaseous Electronics Conference Bochum GermanyS YATOM J BAK JM MITRANI MN SHNEIDER BC STRATTON AND Y RAITSES 10th ndash 14th Oct 2016bull Investigation of nanoparticles formation in carbon arc with Laser Induced Incandescence (LII)

52nd AIAASAEASEE Joint Propulsion Conference (JPC) Salt Lake City UT USAJ BAK Y HAMADA Y HIRANO K KOMURASAKI T SCHOumlNHERR AND H KOIZUMI 25th ndash 27th Jul 2016bull Operational properties of UT-58 anode layer Hall thruster with modified magnetic field and guard-ring material

Space Propulsion 2016 Rome ItalyT SCHOumlNHERR Y HIRANO J SUZUKI S AKAGI J BAK R KAWASHIMA AND K KOMURASAKI 2nd ndash 6th May 2016bull Erosion reduction measures in anode layer type Hall thruster

8th Asian Joint Conference on Propulsion and Power (AJCPP) Kagawa JapanY HAMADA Y HIRANO J BAK R KAWASHIMA T SCHOumlNHERR K KOMURASAKI AND H KOIZUMI 16th -19th Mar 2016bull Thrust performance measurement of high-power RAIJIN Hall thruster using improved dual pendulum thrust stand

37th IEEE Aerospace Conference Big Sky MT USAT INAMORI K IWANAGA J BAK AND P SAISUTJARIT 5th -12th Mar 2016bull Interplanetary attitude control system using IMF in a small sized spacecraft

Workshops amp SeminarsJul 29-Aug 2 2019 9th East-Asia School andWorkshop on Laboratory Space and Astrophysical Plasmas Nagoya JapanMar 9 2017 Small Satellite Intrsquol Cooperation Seminar (Invited) held by Nagoya Univ Nagoya JapanApr2015 - Mar2016 Participant of monthly workshop held by EACAT (East Asian Circle of Applied Technology) Kanagawa Japan

Grants amp AwardsApr2018 - Dec2019 Grant-in-Aid for JSPS Fellows (18J14592) by Japan Society for the Promotion of Science (JSPS) RecipientNov 2018 AAPPS-DPP Poster Prize (AAPPS-DPP 2018) by Association of Asia Pacific Physical Societies (AAPPS) Recipient

Scholarships amp FellowshipsOct 2019 - Dec 2019 Research Fellowship for Young Scientists PD by Japan Society for the Promotion of Science (JSPS) RecipientApr 2018 - Sep 2020 Research Fellowship for Young Scientists DC2 by Japan Society for the Promotion of Science (JSPS) RecipientApr 2014 - Mar 2018 Postgraduate Scholarship by Japanese Government (MonbukagakushoMEXT) Recipient2013 Fall Undergraduate Scholarship by Dongbu Cultural Foundation Recipient2008 Alumni Overseas Activity Scholarship by College of Engineering Seoul National University Recipient2006-2009 National Science and Engineering Scholarship by Korea Student Aid Foundation Recipient

Other ActivitiesSep 2013 Winner in themenrsquos 50m butterfly at Seoul National University swimming competition Seoul SKoreaSep 2013 - Feb 2014 Teaching volunteer for low-income group students Bundo Gongbubang Seoul SKoreaMay 2012 - Jan 2013 Language training abroad Got Cambridge ESOL Certificate in Advanced English Level C1 London UKDec 2009 - Oct 2011 Military service in 2nd Armored Brigade ROK Army Paju SKoreaApr 2008 - Mar 2009Exchange student at Arakawa amp Komurasaki Laboratory The University of Tokyo Tokyo Japan

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