2012, Volume 14, Issue 8
Strategic Study of CAE >> 2012, Volume 14, Issue 8
The effect of group structure on calculation of kinetic parameters of in-hospital neutron irradiator mark 1 reactor
1. Northwest Institute of Nuclear Technology, Xi'an 710024, China;
2. China Zhongyuan Engineering Corporation, China National Nuclear Corporation, Beijing 100191, China
Next Previous
Abstract
The kinetic parameters of in-hospital neutron irradiator mark 1 (IHNI-1) reactor, effective delayed neutron fraction and neutron generation time are calculated by CKPWC（calculating kinetic parameters based on WIMS and CITATION）program based on the calculated results of WIMS and CITATION. The cell homogenized cross section and 69-group flux density are calculated by WIMS. Flux density and adjoint flux density are obtained based on 4-group diffusion calculation using CITATION. The kinetic parameters are calculated by CKPWC based on the results of WIMS and CITATION. The analysis based on the calculation indicates that the energy group structure has a significant effect on the result of kinetic parameter. An appropriate energy group structure is given in this paper. To verify the accuracy of the method, Xi’an Pulsed Reactor is benchmarked and the result is corresponded to its design value.
Keywords
IHNI-1 reactor ; kinetic parameter ; effective delayed neutron fraction ; neutron generation time
Figures
图1
References
[ 1 ] Members of the Cross Sections Evaluation Working Group.ENDF-6 formats manual[R].Upton，New York，USA：Brookhaven National Laboratory，2009.
[ 2 ] 李泽华，应用三维节块法程序计算动态参数[J].核科学与工程，1997，17（3）：277. link1
[ 3 ] 赵柱民，张 良，江新标，等.基于WIMS和CITATION程序的西安脉冲堆动态参数计算[R].西安：西北核技术研究所，2011.
[ 4 ] 袁建新，魏加祥，赵柱民，等，西安脉冲反应堆最终安全分析报告[R].西安：西北核技术研究所，2006.
京公网安备 11010502051620号
