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目的对国内外常用的指环剂量计性能进行测试和评价,为弱贯穿辐射Hp(0.07)监测提供选择参考。方法依据EJ/T 1178-2005核行业标准,使用中国辐射防护研究院放射性计量站的参考辐射装置,测试Hp(0.07)监测用热释光指环剂量计性能。结果通过对三种型号指环剂量计的批均匀性、重复性、剂量线性、能量响应、角响应和测量系统性能等特性测试,表明A型指环剂量计技术性能较好,能满足EJ/T 1178-2005的要求;B型与C型剂量计,能量响应不满足标准要求。结论监测Hp(0.07)数值时,选择A型剂量计,测量结果更加准确可靠。
Objective To test and evaluate the performance of the finger ring dosimeter commonly used both at home and abroad and provide a reference for the monitoring of weakly penetrating radiation Hp (0.07). Methods According to the standard of EJ / T 1178-2005 nuclear industry, the performance of Hp (0.07) dosimeter for monitoring luminescence fingerprinting was tested by using the reference radiation device at the radiation measurement station of China Institute of Radiation Protection. The results of the three types of finger ring dosimeter batch uniformity, repeatability, dose linearity, energy response, angular response and measurement system performance and other characteristics of the test showed that A-type ring dosimeter technical performance better to meet the EJ / T 1178 -2005 requirements; B-type and C-type dosimeter, the energy response does not meet the standard requirements. Conclusion When monitoring the value of Hp (0.07), the A-type dosimeter is selected and the measurement result is more accurate and reliable.