【摘要】 简要介绍了跳源法在启明星1#次临界装置上测量次临界度的原理、外源驱动的次临界中子学实验装置、堆芯布置及中子源驱动系统。主要研究了中子源在堆芯轴向中心位置、不同装载情况下的反应性变化,并给出不同的有效倍增系数keff。实验测量结果与理论计算结果进行了比较,结果符合较好。更多还原

【Abstract】 In the paper,the Venus 1# sub-critical assembly,configuration of reactor core,the external neutron source system and the neutronics research experiment system about accelerator driven sub-critical system (ADS) were introduced.The sub-criticality of reactor was studied using Source-Jerk method at different loadings.The results of measurement were compared with calculated results,and they are in agreement well.更多还原