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用重铬酸钾(银)和硫酸高铈-硫酸铈剂量计对电子束(能量1-15MeV)的水中吸收剂量进行了测量,其剂量响应线性良好,准确度高,测量的扩展不确定度为4.8%(K=2)。针对电子束吸收剂量测量的特点,特别设计加工了硬币型聚苯乙烯制容器。根据深度剂量分布曲线,计算了吸收介质中某一深度处的吸收剂量,并通过射程法的计算,对电子束最可几能量进行了估计。
The dose absorbed in the water of the electron beam (energy 1-15 MeV) was measured with potassium dichromate (silver) and ceric sulfate-cerium sulfate dosimeters with good linearity of dose response, high accuracy, extended uncertainty of measurement Was 4.8% (K = 2). In view of the characteristics of electron beam absorbed dose measurement, specially designed and processed coin-type polystyrene containers. According to the depth dose distribution curve, the absorbed dose at a certain depth in the absorbing medium was calculated and the most energetic energy of the electron beam was estimated by the shooting range method.