The 115 In(n,2n) 114m In and 197 Au(n,2n) 196 Au reaction cross sections have been measured relative to the 27 Al(n,α) 24 Na monitor reaction at the two different incident neutron energies of 13.520 ± 0.005 MeV and 14.54 ± 0.24 MeV. The neutrons from the D-T fusion reaction at the Purnima neutron generator were used for activation followed by off-line γ-ray spectrometry. The uncertainty propagation and correlation of measured reaction cross sections were estimated using covariance analysis through considering the partial uncertainties in different attributes. The measured reaction cross sections from the present work have been compared with the literature data from EXFOR compilation, ENDF data of various libraries and theoretically calculated values from the TALYS-1.9 code.

中文翻译：

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用协方差分析测量 13.52 和 14.54 MeV 中子能量下的 115In(n,2n)114mIn 和 197Au(n,2n)196Au 反应截面

115 In(n,2n) 114m In 和 197 Au(n,2n) 196 Au 反应截面已相对于 27 Al(n,α) 24 Na 监测反应在 13.520 ± 两种不同的入射中子能量下进行测量0.005 MeV 和 14.54 ± 0.24 MeV。Purnima 中子发生器 DT 聚变反应产生的中子用于活化，然后进行离线 γ 射线光谱测定。通过考虑不同属性的部分不确定性，使用协方差分析估计测量反应截面的不确定性传播和相关性。目前工作中测得的反应截面已与来自 EXFOR 编译的文献数据、各种库的 ENDF 数据以及来自 TALYS-1.9 代码的理论计算值进行了比较。