^(60)Co-γ辐照装置高剂量场的标定

Calibration of high dose field in ^(60)Co-γ irradiation equipment

根据重新制作的重铬酸钾(银)剂量计,对γ射线辐射场进行测量。结果表明,剂量计测量重复性较好,相对偏差为2.35%。辐射场的角向和径向剂量呈均匀性分布,而垂直方向在一定高度范围内呈均匀性分布。

The γ-irradiation field is measured by the remade Ag2Cr2O7 - K2Cr2O7 dosimeter. The results show that the dosimeter has high reproducibility with a relative deviation of 2. 35%. The angular and radius direction doses of radiation field are uniformly distributed in the γ-irradiation field. The dose distribution in the perpendicular direction is uniformly distributed in a defined height range.