【作者】 赵柱民； 张良； 陈立新； 张信一； 江新标； 郭和伟； 陈达；

【Author】 ZHAO Zhu-min;ZHANG Liang;CHEN Li-xin;ZHANG Xin-yi;JIANG Xin-biao;GUO He-wei;CHEN Da;Northwest Institute of Nuclear Technology;

【机构】 西北核技术研究所；

【摘要】 针对西安脉冲反应堆的粗棒燃料元件特性,建立了考虑温度分布的燃料元件栅元群常数的制作方法。研究了控制棒周围燃料元件的中子能谱的变化对控制棒周围栅元群常数的影响,区别和不区别对待对控制棒价值的影响,脉冲棒的反应性价值会相差0.12$。研究了中子群平均速度对时空动力学计算的影响,阐明了有明确物理意义的中子速度求解公式,解决了脉冲堆时空动力学计算群常数制作的若干问题。更多还原

【Abstract】 The generation method of the cell parameters depended on temperature were made for Xi’an Pulsed Reactor’ thick rod.The influence of the group parameters calculation methods of the cells around the pulsed control rod on the kinetics calculation results was studied.The rod reactivity worth of considering neutron absorption will be 0.12 $ greater than those without consideration.The sensitivity of the space-time neutron kinetics calculation results to the neutron group velocity was studied.The calculating method of the neutron group velocity which has the clear physics meanings is clarified.Some problem of generation of group constants for the space-time kinetics calculation of Pulsed Reactor is resolved.更多还原