跳源法在启明星1＃次临界装置中的应用

Application of Source-Jerk Method on Venus 1# Sub-critical Assembly

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k_eff。实验测量结果与理论计算结果进行了比较，结果符合较好。

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.