The cross-section of the ¹⁸¹Ta(n,2n)¹⁸⁰Ta reaction has been measured with respect to the ¹⁹⁷Au(n,2n)¹⁹⁶Au monitor reaction at the incident neutron energy of 14.78± 0.20 MeV, using neutron activation analysis and off-line γ-ray spectrometric technique. The present measurement has been done at the energy where discrepant measured results are available in the EXFOR data library. The result has been compared with evaluated data libraries JEFF-3.3 and ENDF/B-VII.1. The present result has also been supported by theoretical predictions of nuclear model code TALYS1.8 and TALYS-1.9. The uncertainty and the correlations among the measured cross-section has been studied using co-variance analysis.

中文翻译：

---

在中子能为14.78 MeV时测量181Ta（n，2n）180Ta反应截面

所述的横截面¹⁸¹的Ta（N，2N）¹⁸⁰的Ta反应已经测量相对于该¹⁹⁷的Au（N，2N）¹⁹⁶在14.78±0.20兆电子伏的入射中子能量的Au监视器反应，采用中子活化分析和离线γ射线光谱技术。当前的测量是在EXFOR数据库中获得不同测量结果的情况下完成的。将结果与评估的数据库JEFF-3.3和ENDF / B-VII.1进行了比较。目前的结果也得到了核模型代码TALYS1.8和TALYS-1.9的理论预测的支持。使用协方差分析研究了测量横截面之间的不确定性和相关性。