一元线性回归处理逆动态法实验数据  

Treating Experimental Data of Inverse Kinetic Method by Unitary Linear Regression Analysis

作　　者：赵郁森[1] 陈晓亮[1] 

机构地区：[1]中国原子能科学研究院快堆工程部,北京102413

出　　处：《原子能科学技术》2009年第7期586-589,共4页Atomic Energy Science and Technology

摘　　要：阐述了一元线性回归处理逆动态法实验数据的原理。采用该方法除能获得反应性外,还可得到外中子有效源强。根据逆动态法实验原理和一元线性回归方法编写了计算程序,对俄罗斯动力研究院零功率装置BFS-1的实验数据进行处理,并与俄罗斯的计算结果进行了比较。计算结果表明:利用一元线性回归方法处理逆动态法实验数据可准确获得反应性和有效源强,提高了测量结果的精度,利用计算出的反应性可方便获得中心元件的效率;在反应堆功率较低、外源较强的情况下,应考虑外源对反应性测量的影响。The theory of treating experimental data of inverse kinetic method by unitary linear regression analysis was described. Not only the reactivity, but also the effective neutron source intension could be calculated by this method. Computer code was compiled base on the inverse kinetic method and unitary linear regression analysis. The data of zero power facility BFS-1 in Russia were processed and the results were compared. The results show that the reactivity and the effective neutron source intension can be obtained correctly by treating experimental data of inverse kinetic method using unitary linear regression analysis and the precision of reactivity measurement is improved. The central element efficiency can be calculated by using the reactivity. The result also shows that the effect to reactivity measurement caused by external neutron source should be considered when the reactor power is low and the intension of external neutron source is strong.

关 键 词：反应性测量 逆动态法 外中子源 

分 类 号：TL326[核科学技术—核技术及应用]