活化法测量CFBR-II堆中子注量和中子能谱  

Neutron Spectra and Fluence of CFBR-II Reactor Measured by Foils Activation Technique

作　　者：郑春[1] 吴建华[1] 李建胜[1] 王强[1] 何兆忠[1] 黄义超[1] 代少丰[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《核动力工程》2004年第1期93-96,共4页Nuclear Power Engineering

摘　　要：采用活化法研究了CFBR-II堆中子能谱、中子注量分布和辐照样品对中子场的扰动。建立了用于求解中子能谱的SAND-II解谱程序。对实验结果的分析表明,活化法得到的中子注量率与裂变室得到的结果是一致的,辐照样品对中子能谱有一定的软化。The neutron fluence and neutron spectra of CFBR-II (China Fast Burst Reactor II) has been measured by the foils activation technique. SAND-II method is used to unfold neutron spectra. The perturba-tion of the irradiation samples to the neutron spectra are studied. It shows that the irradiation sample can slow down the neutron energy. The neutron fluence measured by this method is coincident with the neutron flu-ence measured by 239Pu fission chamber.

关 键 词：CFBR-Ⅱ堆 中子注量 活化法 中子能谱 测量 快中子脉冲堆 

分 类 号：TL375.17[核科学技术—核技术及应用] TL411.4