A study of non-elastic reaction rates for the ADS materials in the environment of spallation neutrons produced by 1.6 GeV d-beam

0384600 - ÚJF 2013 RIV GB eng J - Journal Article
Bhatia, C. - Adam, Jindřich - Kumar, V. - Katovsky, K. - Majerle, Mitja - Solnyshkin, A. A. - Tsoupko-Sitnikov, V. M.
A study of non-elastic reaction rates for the ADS materials in the environment of spallation neutrons produced by 1.6 GeV d-beam.
Applied Radiation and Isotopes. Roč. 70, č. 7 (2012), s. 1254-1260. ISSN 0969-8043
R&D Projects: GA MŠMT LA08002
Institutional support: RVO:61389005
Keywords : accelerator driven sub-critical system (ADS) nuclear data * (n, xnyp) reactions * spectrum average cross-section
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.179, year: 2012

For the design and modeling of Accelerator Driven sub-critical System (ADS) a detailed study of response of ADS materials to the spallation neutrons is required. For this purpose reaction rates of different reactions like (n, xn) and (n, xnyp) in Bi-209, Mo-nat, Fe-56, Ni-nat, Mn-55. Ti-nat and Co-nat materials are determined in an experiment conducted at Nuclotron of JINR, Dubna, using 1.6 GeV d-beam in the 'Energy + Transmutation' set-up. Reaction rates of various (n, xn) and (n, xnyp) reactions are studied in these samples. Results of reaction rates deduced from all the gamma peaks observed in case of Bi-209 (n, xn) reactions with x=3-9, Mo-nat (n, gamma), (n, 3n), (n, 6n), Fe-56 (n, p), (n, p2n), (n, p4n), Ni-nat (n, 2n), (n, 3n), (n, p), (n, d), (n, t), Mn-55 (n, gamma), (n, 2n), (n, 4n), Ti-nat (n, p), (n, d), (n, t) and Co-nat (n, 7), (n, xn) reactions with x=2-5 along with (n, p), (n, 2p2n), (n, 2p4n) and (n, 2p6n) are presented. The measured reaction rates for all the elements show good consistency for all the reaction channels and all observed E's of the product nucleus. For all the above mentioned reactions, both experimental as well as theoretical spectrum average cross-sections (sigma(sp,av,cs)) are deduced and compared. A close agreement is found between the experimental sigma(sp,av,cs) and theoretical sigma(sp,av,cs) values.
Permanent Link: http://hdl.handle.net/11104/0007278