摘要
简述了７－１２ＭｅＶ能区由于有几种低能中子成分的存在给截面测量与评价带来的困难，及低能中子的扣除方法。并给出了此能区几个反应道的测量结果，以图的形式与国际同行数据作了比较。又以￣（５８）Ｎｉ（ｎ，ｐ）￣（５８）Ｃｏ反应为例，说明低能中子对Ｔ（ｄ，ｎ）￣４Ｈｅ中子源的影响，还给出了￣（５８）Ｎｉ（ｎ，ｐ）反应的评价曲线。
The difficulty of the measurements and evaluatiins for the activation cross sections is de-scribed due tO the influence of low energy neutrons for D(d,n)￣3 He neutron source in energy rangeof7-12MeV. And the methods are given to deduce or reduce the influence of low energyneutrons.The cross sections for some reactions are measured in the energy range and a comparisonis made with the published data. The influence of low energy neutrons on T(d,n)￣4He neutronsource is also explained in the example of￣(58)Ni(n, p)￣(58)Co reaction,and the evaluation for the reac-tioin is perforTned and compared with others.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1995年第4期294-300,共7页
Atomic Energy Science and Technology
关键词
低能中子
破裂中子
扣除方法
截面
测量
中子
LOw energy neutron Breakup neutron Deducted method Cross section mea-surement
