| Autor: |
Jie Liu, Zengqi Cui, Yiwei Hu, Haofan Bai, Zhenpeng Chen, Cong Xia, Tieshuan Fan, Jinxiang Chen, Guohui Zhang, Xichao Ruan, Hanxiong Huang, Jie Ren, Hongtao Chen |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Physics Letters B, Vol 842, Iss , Pp 137985- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2023.137985 |
| Popis: |
Cross sections of the 12C(n, n+3α) reaction are of great significance in understanding the nuclear reaction mechanism and in the applications of nuclear technology. However, large differences (≈ 200%) exist in the 12C(n, n+3α) cross section data of measurements and evaluations. Using a single crystal chemical vapor deposited (sCVD) diamond detector as an active target, cross sections of the 12C(n, n+3α) and 12C(n, α0)9Be reactions were measured simultaneously in the neutron energy region of 9.50 – 14.67 MeV. The present cross sections of the 12C(n,α0)9Be reaction are consistent with the results of the latest measurement, which confirms the reliability of this work. The measurement results of the 12C(n, n+3α) reaction with uncertainties smaller than 15% contribute to effectively clarify the discrepancies of the measurements and evaluations. To our knowledge, this is the first time to measure the 12C(n, n+3α) cross sections using the diamond detector as an active target. Our method can be used in the future measurements to constrain the 12C(n, n+3α) excitation function in a much wider neutron energy region. R-matrix analysis was carried out for n+12C system using the RAC code in the neutron energy region below 30 MeV. Systematic and reliable calculation results are obtained for various reaction channels. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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