Neutron spectrum determination of p plus Be reaction for 30 MeV protons using the multi-foil activation technique

0542158 - ÚJF 2022 RIV FR eng C - Conference Paper (international conference)
Štefánik, Milan - Šimečková, Eva - Bém, Pavel - Majerle, Mitja - Novák, Jan - Ansorge, Martin - Mrázek, Jaromír - Štursa, Jan
Neutron spectrum determination of p plus Be reaction for 30 MeV protons using the multi-foil activation technique.
EPJ Web of Conferences. Vol. 239. Les Ulis: E D P Sciences, 2020, č. článku 17015. ISBN 978-2-7598-9106-1. ISSN 2100-014X.
[International Conference on Nuclear Data for Science and Technology (ND2019). Beijing (CN), 19.05.2019-24.05.2019]
R&D Projects: GA MŠMT LTAUSA18198; GA MŠMT EF16_013/0001812; GA MŠMT(CZ) EF16_013/0001679
Research Infrastructure: SPIRAL2-CZ - 90076; CANAM II - 90056
Institutional support: RVO:61389005
Keywords : p+Be source reaction * neutron field * radiation damage
OECD category: Nuclear related engineering

At the NPI in Rez, the p + Be source reaction was investigated for 30 MeV proton beam and thick beryllium target. For neutron field determination of the p(30)+Be source reaction in close source-to-sample distance, the multi-foil activation technique with a set of 10 activation materials (Au, Co, L u, Ti, In, Al, Y, Fe, Ni, NI)) was utilized. From resulting reaction rates, the neutron spectrum was reconstructed using the SAND-II unfolding code. New neutron field of white spectrum up to 28 MeV has an intensity of 8.6 x 10(10) cm(-2)s(-1) close to target. The obtained neutron field extends the utilization of cyclotron-based fast neutron sources at the NPI and provides new experimental opportunities for future irradiation experiments such as fast neutron activation analysis, nuclear data validation, and radiation damage study of electronics and materials for nuclear energetics.
Permanent Link: http://hdl.handle.net/11104/0319634