中国实验快堆中子能谱测量实验研究

Neutron Spectrum Measurement of China Experimental Fast Reactor

摘要: 中子能谱是反应堆的一项重要参数，在快堆中，中子能谱直接决定其增殖与嬗变性能。中国实验快堆是我国第一座钠冷快中子堆，需测量其中子能谱。本文利用活化法在堆芯两个位置进行辐照实验，利用解谱程序处理得到这两个位置的中子能谱。实验结果表明，两个位置的中子能谱与理论计算值基本一致。

Abstract: Neutron spectrum is an important parameter of reactor. Neutron spectrum determines the performance of proliferation and transmutation of fast reactor. China Experimental Fast Reactor (CEFR) is the first sodium-cooled fast reactor in China, and the neutron spectrum of CEFR must be determined. Irradiation experiments were carried at two positions in CEFR by activation method. The neutron spectrum in CEFR was obtained by NSA program. The results show that the experiment results accord with calculation basically.