【作者】 王兰新； 张子骞；

【Author】 Wang Lanxin Zhang Ziqian (Institute of Nuclear Physics and chmistry,CAEP,P.O.Box 525—76,chengdu, 610003)

【机构】 中国工程物理研究院核物理与化学研究所；

【摘要】 本文讨论了将硫酸亚铁剂量计和钢—铁剂量计用于强脉冲混合辐射场测定的实验设计。利用直径 220mm的聚乙烯球,将硫酸亚铁剂量计的快中子响应降低到20%以下,由它和完全暴露在中子、γ混合场中的硫酸亚铁剂量计响应之差,测量中子吸收剂量。这种方法两次实际用于强脉冲混合辐射场中子、γ吸收剂量测量,得到的结果和热释光剂量计、固体径迹探测器的测量结果进行了比较,在±25％的误差范围内一致。更多还原

【Abstract】 The application of iron protosulfate and copper-iron dosimeters to experimental design for measurements of high level pulse radiation field has been discussed. The neutron absorbing dose could be measured by the differnence between the fast nenutron responses of iron protosulfate dosimeter when it is completely exposed to the neutron and γ mixed field and when exposed through a polyethylene bulb which diameter is 220 millimeter. The fast neutron response could be decreased by 20% in the polyethlene bulb. The method has been twice applied to measurement of neutron and γ absorbing dose in the mixed radiation field. Comparison with the experimental results of thermoluminescence dosimeter and solid track detector shows that,they agree within the range of deviation ±25%.更多还原