半导体型个人剂量计能量补偿的研究

摘要

Objective:To complete experiments of the energy response compensation for three semiconductor personal dosimeters in order to meet the requirements of IEC and National Standard.Methods: In Beijing SSDL, the semiconductor detectors were covered by the different thicknesses of Pb and Sn additional filters with several diameter holes to compensate the dosimeters’ energy response.Results: At the 50 keV-Cs-137 energy range, the measuring error of dosimeters is met within 30% of energy response.Conclusion:By the compensation of combined Pb and Sn filters with a hole, the semiconductor personal dosimeters can be used for radiation monitoring.%目的：在X、γ射线能量参考条件下对3台新型半导体个人剂量计进行能量响应补偿，以满足国际电工委员会(IEC)技术规范及我国现行国家标准的相关要求。方法：在国家二级标准剂量学实验室，通过对无补偿剂量计能量响应实验获得的数据，采用一组不同厚度铅、锡复合过滤片，结合不同直径的开孔进行能量补偿，满足剂量计能量响应要求。结果：在50～662 keV能量范围内，个人剂量计完成了测量误差≤±30%的能量补偿目标值。结论：通过采用打孔的铅、锡复合过滤片，可以对半导体型个人剂量计能量补偿，使之满足相关标准规范及实际使用的要求。