New experimental measurement of Er nat ( n , γ ) cross sections between 1 and 100 eV

作者：Xinxiang Li, L. X. Liu, Weijie Jiang, Jie Ren, H. W. Wang, Gong-Tao Fan, X. G. Cao, Yue Zhang, X. Hu, Zi-Rui Hao, P. Kuang, Bing Jiang, X. H. Wang, Jifeng Hu, J. C. Wang, D. X. Wang, Suyalatu Zhang, Yingdu Liu, X. Ma, C. W. Ma, Y. T. Wang, Zhen-Dong An, J. J. He, Jun Su, L. Y. Zhang, Y.X. Yang, W. B. Liu, Weibo Su · 发表于：Physical Review C · 年份：2021 · DOI：10.1103/physrevc.104.054302 · 被引用次数：18 · 研究领域：Nuclear Physics and Applications、Nuclear physics research studies、Radiation Detection and Scintillator Technologies

$^{162}\mathrm{Er}$ and $^{164}\mathrm{Er}$ are two of the 35 $p$ nuclei, and their ($n,\ensuremath{\gamma}$) cross sections are important input parameters in nuclear astrophysics network calculations. The neutron capture cross section in the resonance region of isotopes and even the natural erbium ($^{\mathrm{nat}}\mathrm{Er}$) sample has not been measured experimentally according to the EXFOR database. The ($n,\ensuremath{\gamma}$) cross section of $^{\mathrm{nat}}\mathrm{Er}$, using ${\mathrm{C}}_{6}{\mathrm{D}}_{6}$ liquid scintillator and pulse height weighting techniques to measure prompt $\ensuremath{\gamma}$ rays, has been measured in the energy range of 1--100 eV using a back streaming white neutron facility at China Spallation Neutron Source. The deduced neutron capture cross sections matches the evaluation databases ENDF/B-VIII.0, ENDF/B-VII.1, JENDL-4.0, and ROSFOND-2010, and resonance parameters extracted from the $R$-matrix code in the 1--100 eV region.