100eV以下^(169)Tm中子共振参数的测量与分析

Measurement and Analysis for Neutron Resonance Parameters of ^(169)Tm Below 100 eV

本文介绍了在韩国浦项中子源上应用中子飞行时间方法进行的169 Tm的全截面穿透测量,发布了1组新的169 Tm透射率和全截面数据,并在此基础上介绍了应用SAMMY程序结合实际实验环境,对169 Tm在100eV以下能区的中子共振参数进行的分析和计算。结合此次计算结果及前人的169 Tm共振能区实验数据和评价结果,对169 Tm的100eV以下能区中子共振参数进行了评价和推荐,探索并总结了中子共振参数评价的基本方法和流程。

As part of nuclear data library,neutron resonance parameter（NRP） plays a very important part in the application for national defense,industrial production and theoretical research.For some reason,there are no such research conditions for NRP in China,either experimental or theoretical.The analysis of NRP should base on experimental data,so a total cross-section measurement was done on the Pohang Neutron Facility（PNF）,yielding a new set of transmission data of 169Tm below 100 eV,as well as a new set of NRP of 169T using SAMMY code.Taking all data collected for 169Tm NRP into consideration,a new set of 169Tm NPR was evaluated and recommended.After this work,the methodology and analyzing-flow for NRP evaluation were summarized,as a technological reservation for the future work.