多点源核料位测量方法及其精度修正  

The Gauging Method and Accuracy Correction of Multi-point Source Nuclear Level Gauge

作　　者：程晓龙[1] 赵修良[1] 周剑良[1] 贺三军[1] 刘丽艳[1] 杨志远[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001

出　　处：《核科学与工程》2013年第4期429-437,共9页Nuclear Science and Engineering

基　　金：国家军品配套项目(JPPT-115-5-882)

摘　　要：文章的主要目的是研究一种更好的多点源核料位计源项分布的计算方法。本文采用估算加修正的方法,首先建立一计算模型,根据线源的设计理论归纳出一个多点源核料位计源项分布的计算式,然后用源强补偿法和残差分析法进行非线性修正,最后将计算结果与传统的等效点源法进行对比。结果表明,新方法不仅计算简便,且得出的各项参数均优于传统方法。经过对比最终明确了估算加残差分析法是最佳的计算方法。The main purpose of this paper is to study a better calculating method for the source distribution of the multi-point source radioactive level. With the application of estimation and correction means and by creating a calculation model firstly, this paper concludes a computational formula which can realize the calculation of the multi-point source activity distribution according to the rod-like designing theory. After that, the non-linear output by theapproach of source activity compensation and residual errors analysis are corrected respectively, and the results are compared with the traditional equivalent point source method. It turns out that the new method is not only simpler than the former one but also parameters of each part are better. After comparison, it finally concludes that the method of estimation and residual analysis is the best.

关 键 词：核子料位计 多点源 非线性修正 数值分析 

分 类 号：TL8[核科学技术—核技术及应用]