MERCSF-N: A program for the calculation of fast neutron removal cross sections in composite shields
MERCSF-N: A program for the calculation of fast neutron removal cross sections in composite shields
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DOI：
10.1016/j.anucene.2009.01.013
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发表时间：
2009-06-01
影响因子：
1.9
通讯作者：
Abdo, A. El-Sayed
中科院分区：
文献类型：
--
作者：
El-Khayatt, A. M.;Abdo, A. El-Sayed
利用“宏观有效去除截面”概念，通常用σ（R）（cm（-1））表示，可以得到一种计算快中子衰减的近似方法。定量测定快中子的σ（R）（cm（-1））的传统方法已应用于几种基于人工计算的复合材料，但有许多限制;有限数量的调查样本，大量的时间，随机错误的可能性，等等。这项工作涉及的发展，计算快中子通过均匀混合物，复合物，混凝土和化合物。代表周期表所有元素的所需物理数据已根据建议的公布数据汇编并储存在数据库文件中。MERCSF-N的有效性已被证实，通过比较其预测与以前发表的结果，手动计算和测量，其中一个很好的协议被发现。此外，该代码被用于计算宏观有效去除截面的钢合金，铝和磁铁混凝土，这是以前已经测量和报告。将计算结果与实测结果进行了比较，两者吻合较好.爱思唯尔有限公司出版
An approximate method for calculating the attenuation of fast neutrons can be achieved by using the "macroscopic effective removal cross-section" concept, usually denoted by Sigma(R) (cm(-1)). The conventional method for the quantitative determination of Sigma(R) (cm(-1)) for fast neutrons, which has been applied for several composites based on manual calculations, has a number of restrictions; a limited number of investigated samples, a lot of time, the possibility of random errors, etc. This work deals with the development, validation and application of the macroscopic effective removal cross-section of fast neutrons [MERCSF-N] computer program for calculating Sigma(R) (cm(-1)) for fast neutrons transmitted through homogeneous mixtures, composites, concretes and compounds. The required physical data representing all periodic table elements have been compiled on the basis of the recommended published data and stored in a data base file. The validity of MERCSF-N has been confirmed by comparing its predictions with previously published results, both manually calculated and measured, where a good agreement was found. In addition, the code is used for calculating the macroscopic effective removal cross-sections of steel alloy, aluminum and magnetite concrete, which have previously been measured and reported. The calculated and measured results were compared and a good agreement was noticed. Published by Elsevier Ltd.