Soni B K, Makwana Rajnikant, Mukherjee S, Parashari Siddharth, Suryanarayana S V, Nayak B K, Naik H, Mehta M
Department of Physics, Faculty of Science, The M. S. University of Baroda, Vadodara 390002, Gujarat, India.
Department of Physics, Faculty of Science, The M. S. University of Baroda, Vadodara 390002, Gujarat, India.
Appl Radiat Isot. 2018 Nov;141:10-14. doi: 10.1016/j.apradiso.2018.08.009. Epub 2018 Aug 15.
The neutron capture cross-sections have been measured for the Tb(n, γ)Tb reaction at the spectrum average peak neutron energies of 5.08 ± 0.165, 12.47 ± 0.825, and 16.63 ± 0.95 MeV respectively. The experiment has been carried out using the standard neutron activation technique and off-line γ-ray spectrometry. The present measurement has been done for the energies where very few measured results are available in the data library. The results have been compared with ENDF/B-VII.1 and JENDL-4.0 data libraries. The present results have also been supported by theoretical predictions of nuclear model code TALYS 1.9. Detailed covariance analysis was carried out to find the uncertainty and the correlations among the measured cross-sections.
分别在5.08±0.165、12.47±0.825和16.63±0.95 MeV的谱平均峰值中子能量下，测量了铽（Tb）的中子俘获截面，即Tb(n,γ)Tb反应。该实验采用标准中子活化技术和离线γ射线能谱法进行。本次测量针对的是数据库中测量结果极少的能量。已将结果与ENDF/B-VII.1和JENDL-4.0数据库进行了比较。核模型代码TALYS 1.9的理论预测也支持了本次结果。进行了详细的协方差分析，以找出测量截面之间的不确定度和相关性。
