The cross section of the ${}^{23}\mathrm{Na}(n,\gamma ){}^{24}\mathrm{Na}, {}^{41}\mathrm{K}(n,p){}^{41}\mathrm{Ar}, {}^{65}\mathrm{Cu}(n,p){}^{65}\mathrm{Ni}$, and ${}^{127}\mathrm{I}(n,2n){}^{126}\mathrm{I}$ reactions have been measured at $14.92\pm 0.02$ MeV neutron energy through neutron activation method followed by off-line $\gamma$-ray spectrometry. ${}^{27}\mathrm{Al}(n,\alpha ){}^{24}\mathrm{Na}$ is used as a reference reaction for the neutron flux normalization. The neutron beam was produced via the ${}^3\mathrm{H}(d,n)$ fusion reaction. Detailed uncertainty propagation has been performed using the covariance analysis and the measured cross sections are being reported with their uncertainties and correlation matrix. The cross sections measured in the present work are compared with the earlier reported cross sections available in the EXFOR database. Furthermore, theoretical calculations have been performed using the empire-3.2 and talys-1.9 codes with RIPL-3 parametrization, from reaction threshold to 20 MeV. The present experimental cross sections are also compared with the evaluated nuclear data from TENDL-2017, JENDL-4.0, and ENDF/B-VIII.0. In the case of $\left(n,\gamma \right)$ and $\left(n,2n\right)$ reactions, the comparison is also made with the IRDFF-1.05 evaluation.

中文翻译：

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协方差分析在中子能量下测量钠，钾，铜和碘的（n，γ），（n，p）和（n，2n）反应截面

的横截面 ${}^{23}娜（ñ，\gamma ）{}^{24}娜， {}^{41}\mathrm{ķ}（ñ，p）{}^{41}\mathrm{氩气}， {}^{\mathrm{65岁}}铜（ñ，p）{}^{\mathrm{65岁}}你$和 ${}^{127}\mathrm{一世}（ñ，2ñ）{}^{126}\mathrm{一世}$ 反应已在 $14.92\pm 0.02$ MeV中子能量通过中子活化法随后离线 $\gamma$射线光谱法。 ${}^{27}铝（ñ，\alpha ）{}^{24}娜$用作中子通量归一化的参考反应。中子束是通过${}^3\mathrm{H}（d，ñ）$融合反应。已使用协方差分析进行了详细的不确定性传播，并且将所测得的横截面及其不确定性和相关矩阵进行了报告。将本工作中测量的横截面与EXFOR数据库中较早报告的横截面进行比较。此外，已经使用具有RIPL-3参数化的帝国-3.2和talys -1.9代码进行了理论计算，从反应阈值到20 MeV。还将本实验横截面与来自TENDL-2017，JENDL-4.0和ENDF / B-VIII.0的评估核数据进行了比较。如果是$（ñ，\gamma ）$ 和 $（ñ，2ñ）$ 反应，还与IRDFF-1.05评估进行了比较。