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Calibration and Error Reduction in Neutron Coincidence Counting

机译:中子重合计数中的校准和误差减少

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摘要

The accuracy in measuring the plutonium content by means of neutron coincidence counting can be improved by setting up sample categories and analyzing the categories differently. Four categories of materials are defined, and calibration procedures are recommended for each of the categories. Methods are given to identify which category a sample belongs in and techniques are described to reduce the measurement errors. New data are presented to establish the validity of multiplication corrections, and the application of the correction to induced fissions in uranium as well as plutonium is investigated. Methods are outlined to solve the more general problem of plutonium assay when the (α,n) yield is unknown.
机译:通过设置样品类别并进行不同的分析,可以提高通过中子符合计数法测量the含量的准确性。定义了四种材料类别,并建议针对每种类别进行校准。给出了识别样品属于哪个类别的方法,并描述了减少测量误差的技术。提出了新的数据来确定乘法校正的有效性,并研究了该校正在铀和p中引起的裂变中的应用。概述了在(α,n)产率未知时解决solve测定的更一般问题的方法。

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