Activation cross-section measurement of fast neutron-induced reactions in Al, Au, Bi, Co, F, Na, and Y

0553629 - ÚJF 2023 RIV NL eng J - Journal Article
Jarošík, J. - Wagner, Vladimír - Majerle, Mitja - Chudoba, Petr - Burianová, N. - Štefánik, Milan
Activation cross-section measurement of fast neutron-induced reactions in Al, Au, Bi, Co, F, Na, and Y.
Nuclear Instruments & Methods in Physics Research Section B. Roč. 511, JAN (2022), s. 64-74. ISSN 0168-583X. E-ISSN 1872-9584
R&D Projects: GA MŠMT EF16_013/0001812
Research Infrastructure: e-INFRA CZ - 90140; CANAM II - 90056
Institutional support: RVO:61389005
Keywords : Quasi-monoenergetic neutron source * Cross section * Pure positron emitter * Cascade decay
OECD category: Nuclear related engineering
Impact factor: 1.3, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.nimb.2021.10.018

This paper describes cross-section measurements by means of the neutron activation method using an accelerator-driven fast neutron source at the Nuclear Physics Institute of the Czech Academy of Sciences in Rel. It extends previous studies published in papers (Vrzalova et al. (2013), Chudoba et al. (2018)). A quasimonoenergetic neutron source based on the p+Li(C) reaction was used to irradiate Al, Au, Bi, Co, NaF, and Y samples with neutrons at the energies of 17.5(10) MeV, 19.8(9) MeV and 27.5(7) MeV. Irradiated foils were analyzed by means of gamma-ray spectrometry and reaction yields were obtained. Cross sections of several fast neutron-induced reactions were determined on the basis of the measurement of neutron spectra and their corresponding reaction yields. The production cross sections of isomeric states were determined as well. This paper also describes the measurements of the positron emitters using annihilation gamma-ray spectrometry. The sources of uncertainties in the various parts of the experiment are discussed. The resulting cross sections might be useful for the further development of advanced nuclear reactors and fast neutron dosimetry.
Permanent Link: http://hdl.handle.net/11104/0328379