【摘要】 应用单组中子微扰理论,对辐照后控制棒钴吸收体内活度分布进行理论分析,得到活度分布计算的解析表达式。对高通量工程试验堆（HFETR）首次出堆的2根控制棒钴吸收体进行数值计算。利用钴靶活度水下测量装置进行这2根钴吸收体活度分布的实验测量。计算与实验测量结果相符。通过理论计算所得到的活度分布可作为辐照后⁶⁰Co同位素分装依据。本文得到的控制棒相对价值曲线理论计算值与实验测量结果符合良好。更多还原

【Abstract】 One group neutron perturbation theory is used to analyze the activity distribution of the control rodcobalt absorber after irradiation. Analytical expression of the activity distribution is derived, and calcu-lation is done for the first two cobalt absorbers in HFETR. The measurements of cobalt activity werecarried out using the under water facility. Satisfactory agreement between calculated and measured re-sults shows the effectiveness of calculation method for the activity distribution and the relative worth ofthe control rod cobalt absorber.更多还原