Neutron field study of p(24) + Be source reaction using the multi-foil activation technique

0509940 - ÚJF 2020 RIV CH eng J - Článek v odborném periodiku
Štefánik, Milan - Bém, Pavel - Šimečková, Eva - Štursa, Jan - Zach, Václav - Majerle, Mitja
Neutron field study of p(24) + Be source reaction using the multi-foil activation technique.
Fusion Engineering and Design. Roč. 146, č. 9 (2019), s. 2053-2056. ISSN 0920-3796. E-ISSN 1873-7196
Grant CEP: GA MŠMT EF16_013/0001812; GA MŠMT LM2015056
Institucionální podpora: RVO:61389005
Klíčová slova: accelerator-driven fast neutron source * Beryllium target * proton induced reaction * multi-foil activation technique * Gamma-ray spectrometry * reaction rate
Obor OECD: Nuclear physics
Impakt faktor: 1.692, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.fusengdes.2019.03.100

The p(24) + Be neutron producing reaction was investigated at the Nuclear Physics Institute of the Czech Academy of Sciences using the 24 MeV proton beam on thick beryllium target. Neutron field in close target-tosample distance was determined employing the activation foils method, set of ten activation foils (Al, Au, Fe, Ni, Y, Ti, In, Co, Nb, Lu) was utilized. Neutron spectrum reconstruction from reaction rates obtained by means of gamma-ray spectroscopy was performed using 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 Monte Carlo MCNPX predictions. Developed p(24) + Be neutron field up to 22 MeV represents a useful tool for validation of cross-sections in energy range relevant to fusion neutrons (>= 12 MeV), intensive irradiation experiments, and radiation hardness study of materials.
Trvalý link: http://hdl.handle.net/11104/0300528