https://doi.org/10.1140/epja/s10050-024-01236-3
Regular Article - Experimental Physics
The measurement of the 6Li(n, t)4He reaction cross-section in the energy range of 4.25–7.50 MeV
Institute for Physics and Power Engineering, Experimental Nuclear Physics Department, Bondarenko Sq. 1, 249033, Obninsk, Russian Federation
Received:
24
October
2023
Accepted:
26
December
2023
Published online:
23
January
2024
The measurement of the total cross-section of the 6Li(n,t)4He reaction was carried out over the energy range of 4.25–7.50 MeV by a time-of-flight method relative to the cross-section of the 235U fission. The Cs2LiYCl6:Ce based scintillation detector was used as a lithium containing target. The scintillation detector was placed in an axially symmetrical geometry relative to a monitor fission chamber containing 235U layers. The pulsed quasi-monoenergetic neutron beam from the 2H(d,n)3He reaction was used as a neutron source. The total systematic uncertainty in the experiment was 4.6–6.7% with the statistical uncertainty of 2.0–3.7%. The obtained data do not support the evaluated cross-section of the 6Li(n,t)4He reaction from the ENDF-B/VIII.0 library. At the same time, the average difference between the evaluated cross-section from the JENDL-5.0 library and the experimental data obtained in this work also exceeds the total systematic uncertainty of the measurements.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
