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Facilities at the Nuclear Physics Institute Academy of Sciences of the Czech Rep., Řež.

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Presentation on theme: "Facilities at the Nuclear Physics Institute Academy of Sciences of the Czech Rep., Řež."— Presentation transcript:

1 Facilities at the Nuclear Physics Institute Academy of Sciences of the Czech Rep., Řež

2 Nuclear Physics Institute ASCR major Czech institution in nuclear physics field ~ 200 employees ~ 80 scientists mission  basis research in nuclear physics and related disciplines  use of nuclear physics methods in interdisciplinary scientific and research areas

3 cyclotron accelerator U-120M isochronous machine with K=40

4 nuclear astrophysics Asymptotic Normalization Coefficient (ANC) method direct part of (p,  ) ( 3 He,d), etc. 13 C(p,  ) 14 N 14 N(p,  ) 15 O Achromatic magneto-optical system for spectroscopy of nuclear reaction products

5 Radiopharmaceutical R&D and production production  18F fluordeoxyglucose (FDG) for positron emision tomography (PET),  81Rb/81Kr generator for lungs ventilation diagnostic R&D diagnostic products for the use on PET cameras [ 18 F] FLT –fluorthymidin beta radionuclides for radiotherapy no-carrier-added 90 YCl 3, 166 Ho complexes targeted diagnostics and therapy 211 At, 123 I

6 fast neutron generators employing cyclotron beam fast neutron generators employing cyclotron beam Source reaction p+D 2 O - mean energy 14 MeV - energy range up to 32.0 MeV - neutron emission 4.4 x10 10 n/sr/s/μA - adjustable flux density 10 7 - 5x10 11 n/cm 2 /s mono-energetic 20-37 MeV the high-power white-spectrum Source reaction p+7Li - energy range 20 - 37 MeV - flux density 3 10 9 n/cm 2 /s

7 fast neutron studies fast neutron studies Data for IFMIF (International Fusion Material Irradiation Facility) ADS (Accelerator driven system) studies experimental subcritical blanket Blažka (CTU FNSPE) European Activation File EURATOM fusion program

8 fast neutron studies fast neutron studies Detector testing radiation hardness studies with fast neutrons potential background signals induced by fast neutrons in the Silicon Counter Tracker (SCT) of the ATLAS detector Tab. 1. List of used detectors with total fluences . Fig. 2. I-V curves of the A3 GaAs detector measured before (small cross refers to bias going down to up; plus mark refers to bias going up to down) and after (circle refers to bias going down to up; diamond refers to bias going up to down) radiation damage.

9 NPI cyclotron source area

10 Cyclotron, August 15, 2002

11 Tandetron 4130 MC Electrostatic accelerator - terminal voltage 200 kV-3MV H-Au ions - energies ~100 keV - ~10 MeV RBS, PIXE, PIGE, ERDA implantation channeling microprobe

12 Neutron Physics Laboratory of NPI ASCR @ reactor LVR 15, NRI Řež, plc.

13 Six-meter long neutron guide providing thermal neutron beam, intensity about 10 7 neutrons/cm 2 s (at reactor power of 8MW), Cd ratio about 10 5 Beam Cross section: 4 mm (height) x 60 mm (width), the neutron beam divergence < 0.5° hardness studies with slow neutrons Neutron microradiography and microtomography with Medipix2 X-ray and neutron imaging detector Medipix-2 Blank cartridgeroentgenographyneutronography Medipix-2

14 TARGISOL project optimization of the release properties of ISOL targets THERMAL NEUTRON DEPTH PROFILING NPI Rez - Thermal Neutron Depth Profiling (TNDP). study of diffusion of some light elements in selected ISOL targets Diffusion coefficient D can be deduced from the broadening of the TNDP profiles D = D 0 e -e/kT D 0 – pre-exponential constant  – activation energy k – Boltzman constant T – temperature (in 0 K) Example of the TNDP analysis: 350 keV 10 B implanted into BaF 2 annealed 60 min at 417 0 C. The analysis of the broadening of the boron profiles gives the diffusion coefficient D = 2 x 10 -13 cm 2.s

15 Facilities at the Nuclear Physics Institute Academy of Sciences of the Czech Rep., Řež


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