摘要
堆内热中子谱分布不是完全的Ｍａｘｗｅｌｌ谱，而是上端截去的，这引起了热中子测量数据处理的精确化问题。本文介绍缝合能Ｅ＿ｃ对中予通量谱参数的依赖关系，并引入截上端热中子反应率修正因子Ｆ＿ｍ，截上端热中子通量修正因子Ｆ＇＿ｍ。和截上端自屏因于Ｃ＇＿（ｔｈ）。给了它们的图表曲线，供精确处理堆内热中子测量数据之用。
The thermal neutron spectrum in a reactor is not a complete Maxwellian distribution but aupper truncated one. It causes to improve the data process of reactor thermal neutronmeasurements.The truncated energy,i.e.the joint energy Ec,Which depends on parameters ofneutron flux spectrum is described in this work.The upper truncated thermal reaction rate modi-fication factor Fm,the upper truncated thermal flux factor F'm and upper truncated self-shieldingfactors G'th.nare introduced and discussed.The curves and table of these factors are given for practical use。
出处
《核科学与工程》
CSCD
北大核心
1995年第1期39-44,共6页
Nuclear Science and Engineering
关键词
精确化
热中子
中子通量
数据处理
thermal neutron flux joint energy reference neutron flux spectrumtruncated Maxwellian spectrum reaction rate correction factor
