规程变更对现役电子个人剂量仪性能影响研究

The Influence of the Revision of Verification Regulation on the Performance of Personal Does Equivalent Meters

X、γ辐射个人剂量当量Hp(10)监测仪检定规程的修订,对部分检定项目的技术要求及方法进行了调整.为分析变更后的新规程对原有监测仪的影响,抽选了核电厂现役常用的同种探测器(双Si半导体探测器)不同型号的60台仪表进行了全部项目的检定.其中全部仪表统计涨落和相对固有误差仍满足要求;部分仪器的能量响应和报警阈值误差以及多数DMC2000S型个人剂量当量监测仪和全部NRF30型个人剂量当量监测仪在-60°的角度响应超出了-29%的范围.根据检定结果,给出了规程修订后检定不合格的个人剂量当量监测仪的处理建议.

The technical requirements and methods for some verification items are adjusted along with the revision of verification regulation of personal dose equivalent H p(10)monitors for X and y radiations.In order to analyze the effect of the new regulation on the original monitor,sixty active meters with different type and common detector(double silicon semiconductor detectors)are selected.All projects of the first verification are carried out.It is show that the statistical fluctuation and relative inherent error of all instruments still meet the requirements.Energy response and alarm threshold errors of some monitors are not up to standard.Most DMC2000S and all NRF30 meters at 60 degrees angle response beyond the range of 29%.According to the results,the processing opinions of nonconforming are given after revision of verification.