Nuclear Physics Applications at the Institute of Nuclear
- Slides: 13
Nuclear Physics Applications at the Institute of Nuclear and Particle Physics A. Lagoyannis Institute of Nuclear and Particle Physics NCSR “Demokritos”, Greece A. Lagoyannis I. N. P. P. NCSR “Demokritos”
Applications @ I. N. P. P. Research: Ø EBS / NRA cross section measurements ØPIGE cross section measurements Ø R & D on techniques A. Lagoyannis I. N. P. P. NCSR “Demokritos” Services: Ø Ion Beam Techniques Ø XRF Laboratory Ø Neutron & Charged Particle Irradiations
EBS - NRA Cross Section Measurements Motor driven goniometer Great angular accuracy (0. 01 deg. ) Up to 4 targets Water cooling available A. Lagoyannis I. N. P. P. NCSR “Demokritos”
PIGE Cross Section Measurements 10 B(p, αγ) 7 Be 32 S(p, p’γ) 32 S A. Lagoyannis I. N. P. P. NCSR “Demokritos” Εγ = 429 ke. V Εγ = 2230 ke. V
Ion Beam Analysis Tools Motor driven goniometer Suitable for channeling studies 4 – axis target movement Place for PIGE detector Surface barrier detector at backward angles Beam Chopper Rutherford Backscattering Spectroscopy Elastic Backscattering Spectroscopy Nuclear Reaction Analysis Proton Induced Gamma – ray Emission Channeling Studies A. Lagoyannis I. N. P. P. NCSR “Demokritos”
Ion Beam Analysis Examples Geological Lead interaction with gypsum Material Science Ni. O Thin film formation Co/Nb/Co trilayers Cultural Heritage Corrosion studies A. Lagoyannis I. N. P. P. NCSR “Demokritos”
External Beam A. Lagoyannis I. N. P. P. NCSR “Demokritos”
Micro Beam Setup Chamber’s features: ØLoad – lock chamber Ø 3 – axis motorized sample holder Ø Rotatable target holder Ø Heating / Cooling Ø Long range microscope for precision Ø CCD camera for sample Monitoring Detectors: Ø PIXE low energy Si(Li) detector at 45 o Ø PIGE HPGe detector at 45 o Ø STIM detector at 0 o Ø RBS SSB detector at 170 o Ø NRA SSB detector at 150 o A. Lagoyannis I. N. P. P. NCSR “Demokritos”
External Micro Beam Setup Upgrading of the microbeam in order to deliver ~ 50 um external beam optics calculations already performed external probe exists (needs modification) large samples motorized holder exists A. Lagoyannis I. N. P. P. NCSR “Demokritos”
XRF Laboratory Milli - XRF Spectrometer Micro - XRF Spectrometer E 5 Integrated XRF Spectrometer A. Lagoyannis I. N. P. P. NCSR “Demokritos” Applications: ØCultural Heritage (artefacts, …) ØEnvironment (air filters, …) ØMaterial Science (thin films, …) ØTechnological (solar cells, …)
XRF Examples Mirror A. Lagoyannis I. N. P. P. NCSR “Demokritos” Coins Armor
In Situ XRF Measurements Portable XRF Spectrometer Applications: ØCultural Heritage ØArcheological Sites Ø Museums (in Greece & abroad) A. Lagoyannis I. N. P. P. NCSR “Demokritos”
Neutron Irradiation Setup Irradiation of electronic devices (Memory modules, ESA related devices, …) Gas cell A. Lagoyannis I. N. P. P. NCSR “Demokritos” Reaction Neutron Energy (Me. V) Flux (n/sec/cm 2) 7 Li(p, n)7 Be 0. 12 – 0. 65 ≈ 105 d(d, n)3 He 3. 9 – 11. 5 ≈ 106 t(d, n)4 He 16. 4 – 25. 7 ≈ 105
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- Irradiated food
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- Nuclear institute membership
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