The p(20)+Be reaction as a source of fusion relevant neutrons

0538373 - ÚJF 2021 RIV CH eng J - Článek v odborném periodiku
Štefánik, Milan - Bém, Pavel - Šimečková, Eva - Štursa, Jan - Majerle, Mitja - Mrázek, Jaromír
The p(20)+Be reaction as a source of fusion relevant neutrons.
Fusion Engineering and Design. Roč. 161, DEC (2020), č. článku 112053. ISSN 0920-3796. E-ISSN 1873-7196
Grant CEP: GA MŠMT LTAUSA18198; GA MŠMT EF16_013/0001812; GA MŠMT(CZ) EF16_013/0001679; GA MŠMT LM2018115
Institucionální podpora: RVO:61389005
Klíčová slova: accelerator-driven neutron source * Berryllium target * proton induced reaction * multi-foil activation technique * SAND-II unfolding * neutron spectrum
Obor OECD: Nuclear related engineering
Impakt faktor: 1.453, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.fusengdes.2020.112053

The p(20)+Be neutron source reaction was investigated at the Nuclear Physics Institute of the Czech Academy of Sciences using the 20 MeV proton beam on thick beryllium target (thickness of 8 mm). Neutron field in close source-to-sample distances was determined by means of the activation foils technique. Set of ten activation foils (Al, Ti, Co, Fe, Ni, Y, In, Nb, Lu, Au) was utilized. Neutron spectrum reconstruction from reaction rates obtained using the gamma-spectroscopy method (semiconductor HPGe detectors) was performed utilizing the modified version of SAND-II unfolding code and relevant activation cross-sections from the EAF-2010 nuclear database. Determined neutron energy spectra were validated against the MCNPX calculations. Developed p(20)+Be neutron field with broad spectrum represents a useful tool for the cross-section data validation within the ITER and IFMIF-DONES research programs (> 12 MeV), neutron-hardness tests of microelectronics, study of material damage, and calibration of new detection systems.
Trvalý link: http://hdl.handle.net/11104/0316185