دورية أكاديمية
Measurement of the $$ ^{181} $$ 181 Ta( $$n,\gamma $$ n , γ ) cross sections up to stellar s-process temperatures at the CSNS Back-n
| العنوان: | Measurement of the $$ ^{181} $$ 181 Ta( $$n,\gamma $$ n , γ ) cross sections up to stellar s-process temperatures at the CSNS Back-n |
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| المؤلفون: | Zhendong An, Weiwei Qiu, Wei Jiang, Gaole Yang, Xiankai Li, Zhengfa Liao, Ziyue Zhuang, Xiaoping Zhang, Shengli Chen, Chenchen Guo, Erxi Xiao, Xiao Fang, Xinxiang Li, Hongwei Wang, Xinrong Hu, Bing Jiang, Wenqing Shen, Jincheng Wang, Jie Ren, Xichao Ruan, Dexin Wang, Su-Yalatu Zhang, Wen Luo, Zhichao Zhu, Haoyang Lan, Zongwei Cao, Xu Ma, Yingdu Liu, Pusen Wang, Yi Yang, Ping Su, Xiangai Deng, Wanbing He, Yugang Ma, Chunwang Ma, Yuting Wang, Pengqin He, Renguang Tang, Tao Zhou, Jing Wang, Han Yi, Yue Zhang, Yonghao Chen, Ruirui Fan, Keqing Gao, Qiang Li, Kang Sun, Zhixin Tan, Minhao Gu, Hantao Jing, Jingyu Tang |
| المصدر: | Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract The neutron capture cross section of $$ ^{181} $$ 181 Ta is relevant to s-process of nuclear astrophysics, extraterrestrial samples analysis in planetary geology and new generation nuclear energy system design. The $$^{181}$$ 181 Ta( $$n,\gamma $$ n , γ ) cross section had been measured between 1 eV and 800 keV at the back-streaming white neutron facility (Back-n) of China spallation neutron source(CSNS) using the time-of-flight (TOF) technique and $$\hbox {C}_{6}\,\hbox {D}_{6}$$ C 6 D 6 liquid scintillator detectors. The experimental results are compared with the data of several evaluated libraries and previous experiments in the resolved and unresolved resonance region. Resonance parameters are extracted using the R-Matrix code SAMMY in the 1–700 eV region. The astrophysical Maxwell average cross section(MACS) from kT = 5 to 100 keV is calculated over a sufficiently wide range of neutron energies. For the characteristic thermal energy of an astrophysical site, at kT = 30keV the MACS value of $$^{181}$$ 181 Ta is 834 ± 75 mb, which shows an obvious discrepancy with the Karlsruhe Astrophysical Database of Nucleosynthesis in Stars (KADoNiS) recommended value 766 ± 15 mb. The new measurements strongly constrain the MACS of $$^{181}$$ 181 Ta( $$n,\gamma $$ n , γ ) reaction in the stellar s-process temperatures. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-023-39603-7 |
| URL الوصول: | https://doaj.org/article/229e6ae94d874d7081052263f2265c68 |
| رقم الأكسشن: | edsdoj.229e6ae94d874d7081052263f2265c68 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-023-39603-7 |