pics in lviv 21-07-2014(kholodov) · 2014. 7. 21. · ams facility (model 4110bo-ams) is a 1 mv...

1

IAP NAN of Ukraine activity in field of High Energy Physicsfield of High Energy Physics.

P bl fPossible areas of cooperation in frame of PICS and beyondframe of PICS and beyond.

Roman Kholodov, PICS Meeting, Basivka, Ukraine, 21-07-2014

2Institute of Applied Physics National Academy of Sciences of Ukraine

The Institute of Applied Physics (IAP) NationalThe Institute of Applied Physics (IAP), NationalAcademy of Sciences of Ukraine (NAS ofUkraine), was established in 1991 to enlarge thefundamental and applied researches in nuclearfundamental and applied researches in nuclearphysics. IAP NAS of Ukraine is a part of theDepartment of Nuclear Physics and PowerEngineering, NAS of Ukraine.g g,

IAP NAN of Ukraine activity in field of High Energy Physics.



The main areas of research:• Quantum electrodynamics in strong fields;• Modeling of radiation effects and microstructural transformations in

constructional materials;• Studies of low-energy ion and electron interactions with matter;Studies of low energy ion and electron interactions with matter;• Development of electrostatic accelerator-based instrumentation for analysis

of material structure and composition with submicron lateral resolution;• Molecular radiation biophysics;• Development of equipment for research and education.



The main experimental facilities at the IAP includes: • Microanalytical facility: Ion luminescence channel, resonant nuclear reactions

channel; scanning microprobe channel with 2 µm spatial resolution; RBS, PIXE, PIGE channels; ERDA channel with electrostatic spectrometer; X-ray quasi-monochromatic source.

• User facility Based on Tandetron 1.0 MV, 4110Bo-AMS, HVEE.There are seven departments at the Institute:p• Department of Charged Particle Beam Physics.• Department of Radiation Biophysics.• Department of Nuclear Research.• Department of Quantum Electrodynamics of Strong Fields.• Department of Physical Methods of Ore Analysis.Department of Physical Methods of Ore Analysis.• Department of Modeling of Radiation Effects and Microstructural Transformations

in Constructional Materials.R h C t f E i t f Ed ti d R h


• Research Center of Equipment for Education and Research.

5QED test in strong fieldsQ es s o g e ds

- Resonant and non-resonant QED processes in the strong pulsed laser field (PHELIX, XFEL)

- Resonant and non-resonant QED processes in strong magnetic field between colliding nuclei, in particular, electron-positron pair production

∗

∗


6QED test in strong fields

2∂Ψ

Schrödinger equation 1210H Gs=

Q es s o g e ds

( )2

i Vt m

∂Ψ= − ∇+ Ψ

∂

Equations for

ie βαΨ =

ρ∂e+

e −1Z

Equations for, :α β

0divtρ ρυ∂+ =

∂

1( ) ( )V Vυ υ υ∂+ ∇ = − ∇ +

2Z

1010L cm−=( ) ( )BV Vt m

υ υ+ ∇ = − ∇ +∂

22 2| | , , BVρ α υ β α= = Ψ = ∇ = − ∆

e-e+ pair between colliding nuclei

10L cm=

| | , ,2BV

m mρ α υ β α

αΨ ∇ ∆

Bohm potential

E.Madelung, Quantentheorie in hydrodynamischer form // Zeitschr. für Phys. 40, 322 (1926)

Roman Kholodov, PICS Meeting, Basivka, Ukraine, 21-07-2014E. Madelung

7Electron cooling f h d ti l th

- Electron cooling of antiproton theory

of charged particles theory

In the second Born approximation

( ) ( )1 2k k kW W W= +

Analytical formulas 2~dE qdt

− Feynman diagram of the second Born approximation


pp

8Multiscale simulation

Radiation damage is inherently multiscale with interacting phenomena ranging


Radiation damage is inherently multiscale with interacting phenomena ranging from ps to decades and from nm to m.

9Collaboration betweenCERN & IAP NAS f Uk iCERN & IAP NAS of Ukraine

C t LI C llid (CLIC) i f t l t itCompact LInear Collider (CLIC) is future electron-positron linear collider with center of mass energy 3 TeV.

3 TeV of center mass energy & accelerating gradient 100 MV/m


g g

10Impurity determination at copper samples using thermal desorption ERDA & RBSusing thermal desorption, ERDA & RBS

S Layer No.1

L N 2No. of l

The width of layer, ×1015

Cu, at. %

H, at.

C, at. %

aLayer No.2Layer No.3Layer No 4

layer at/cm2 %

1. 150 58 27 15

mLayer No.4Layer No.5

2. 100 80 20 -

3. 300 95 5 -

4 500 98 2pl

Depth4. 500 98 2 -

5. 4000 99 <1 -

eThe energy spectra analysis shown the availability of film with thicknessfrom 200×1015 at/cm2 to 1000×1015 at/cm2 with high hydrogen content


from 200×1015 at/cm2 to 1000×1015 at/cm2 with high hydrogen content(27 at.%).

11Optical spectroscopy of breakdown

E i t l tExperimental setupThe scheme of setup for optical spectroscopy of breakdowns,optical spectroscopy of breakdowns, based on DC-spark system at CERN

ResultsA comparison of the optical spectra for 20 consecutive breakdowns at the same spot.


12DC spark system construction for further study of breakdowns parametersstudy of breakdowns parameters

at CERNat CERN at IAP NASUat IAP NASU

Vacuum chamberschambers

with electrodes

The main aim: testing the breakdown field strength of different kindsof materials in order to speed up the

The main aim: testing the breakdown field strength of samples after plasma and ion treatment, measuring work function of

validation of different materials for rfstructures. Vacuum level: 10-10 mbarM lt 12 kV

material after such treatment.Vacuum level: 10-5 mbar (will be improve)Max voltage: 70 kVG di t hi h b t “ l”


Max voltage: 12 kVUsual gap distance: 20 µm

Gap distance which can be set as “usual”: 150 µm

132 MeV microanalytical facility

Ion luminescence channel, resonant nuclear reactions channel; scanningmicroprobe channel with 2 µm spatial resolution; RBS, PIXE, PIGE channels;ERDA channel with electrostatic spectrometer; X-ray quasimonochromatic source,defectoscopy channel (channeling, e-e+ annihilation)


14Scanning Nuclear Microprobe

Beams: H+, He+ with energy 0.2…2 MeVResolution:Resolution: 2 µm with current ≈100 pAAnalytical techniques: µPIXE, µRBS, IBIC

A new type of active ion‐opticalelement, an integrated doublet

Mapping of chemical elements distribution in zone of joint of solid‐phase bounding of heterogeneous materials (stainless


or quadrupole lenses solid‐phase bounding of heterogeneous materials (stainless steel -copper). Zone dimensions 100 × 100 μm2

15Novel ERDA and RBS facility:beamline scattering chamber and electrostaticbeamline, scattering chamber and electrostatic

spectrometer

High resolution elastic scattering channel is intended for non-destructive quantitativedetermination of hydrogen and its depth distribution in the sample material by recoil nucleimethodmethod.The main advantagesThe vacuum in the scattering chamber is 10-7 Pa, that makes contamination of samplesimpossible during the experiment. The limit of detection of hydrogen is about 10 ppm. Itimpossible during the experiment. The limit of detection of hydrogen is about 10 ppm. Itallows the exploration of the hydrogen content in metals, where it is present in trace amounts.The relative energy spread is 1.5 × 10-3, which is an order of magnitude higher than whenusing standard silicon surface-barrier detector.


g

16Monochromatic x-ray source on the basis of electrostatic proton accelerator

The main advantagesTh bi ti f hi h t l t b ith th di ti tiThe combination of high-current low-energy proton beam with the radiation generationchamber allowed obtaining very intense source of monochromatic X-rays with lowbackground and high monochromaticity.Areas of ApplicationAreas of ApplicationDetermination of elements in the surface layers of structural materials and biomaterials byXRF and µXRF methods, study of the radiation influence on individual cells.


17High-sensitivity isotope mass-spectrometer

AMS facility (model 4110Bo-AMS) is a 1 MV Tandetron, multielement machinedesigned to be able to detect not only low-mass isotopes such as 10Be, 14C and 26Al,but also heavy elements such as 129I. This type spectrometer was used to analyze the


y yp p yShroud of Turin.

18Development of equipment for researchMagnetic field diagnostics system High Intense non-cesium

H- Ion Source

- IAP NASU is a participant of TESHEP since 2008- Ukrainian-French technology park is planned to create at the IAP NASU

Possible cooperation

gy p pand SELMY Company

- Manufacturing equipment components for accelerators- Ion beam irradiation of prototypes of electronics for LHC upgradeIon beam irradiation of prototypes of electronics for LHC upgrade- Visit of our young researchers to LAL workshop and to Yanus experiment

(Saclay), October 2014International mobility of researchers


- International mobility of researchers, Marie Skłodowska Curie Actions (Horizon2020)

Thank you for attention!Thank you for attention!

Adress: Institute of Applied Physics NAS of Ukraine58 Petropavlivska St., 40000 S Uk i40000, Sumy, Ukraine

Phone: +38 (0542) 22-27-94Fax: +38 (0542) 22-37-60e-mail: [email protected] mail: [email protected]: iap.sumy.org

pics in lviv 21-07-2014(kholodov) · 2014. 7. 21. · ams facility (model 4110bo-ams) is a 1 mv...

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