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本文对拟作为辐射加工电子束吸收剂量标准剂量测量系统的重铬酸钾 (银 )、重铬酸银与硫酸铈—亚铈等三种液体化学剂量计进行了研究 ,对其剂量响应曲线、测量重复性及长期稳定性等剂量学性能做了比较深入的考察 ,并与量热法进行了比对 ,评价可能存在的剂量率效应 ;三种液体化学剂量计相互间也进行了比对。结果表明 :此三种液体化学剂量计的剂量学性能良好 ,无明显的剂量率效应 ,测量扩展不确定度为± 4% (k =2 ) ,可做为测量电子束吸收剂量的标准
In this paper, three kinds of liquid chemical dosimeters, such as potassium dichromate (silver), silver dichromate and cerium sulfate-cerium, which are the standard dosimetry systems for radiation processing electron beam absorbed dose are studied. The dose response curves, Measurement repeatability and long-term stability and other dosimetry performance made a more in-depth inspection, and calorimetry were compared to evaluate the possible dose rate effects; three liquid chemical dosimeters were also compared with each other. The results show that the three liquid chemical dosimeters have good dosimetry performance and no obvious dose-rate effect. The measurement uncertainty of expansion is ± 4% (k = 2), which can be used as the standard for measuring electron beam absorbed dose