环境γ辐射剂量率比对及宇宙射线响应测量结果与分析  

Results and Analysis of Comparison of EnvironmentalγRadiation dose Monitoring and Cosmic Ray Response Measurement

作　　者：张华 陈志东[1] 徐润龙 林炜伟 梁明浩 Zhang Hua;Chen Zhidong;Xu Runlong;Lin Weiwei;Liang Minghao(Guangdong Environmental Radiation Monitoring Center,Guangzhou 510000,China)

机构地区：[1]广东省环境辐射监测中心,广州510000

出　　处：《核安全》2022年第5期88-94,共7页Nuclear Safety

摘　　要：广东省环境辐射监测中心(GERC)组织10家辐射监测单位进行环境γ辐射剂量率比对和宇宙射线响应测量。结果表明:12台仪器的校准系数与在广东省环境辐射监测中心辐射检验场得到的实验系数的相对偏差范围为-10.1%~21.0%,其中11台仪器的相对偏差范围在10%以内;仪器在GERC辐射检验场得到的宇宙射线响应值(实验值)与实测值的绝对偏差范围为-5.2~5.5 nGy·h-1;经GERC辐射检验场获得的实验系数修正仪器测量值后,所有仪器在4个测点用稳健Z比分数法评价,得到的结果全部满意。Guangdong Provincial Environmental Radiation Monitoring Center(GERC)organized 10 radiation monitoring units to compare environmentalγradiation dose rate and cosmic ray response measurements.The results show that the relative deviation between the calibration coefficients of 12 instruments and the experimental coefficients obtained in radiation inspection field ranges from-10.1%to 21.0%,and the relative deviation of 11 instruments was less than 10%.The absolute deviation between the cosmic ray response values(experimental values)and measured values ranges from-5.2 to 5.5 nGy·h-1.The instrumental measurements were corrected by experimental coefficients obtained by the GERC radiation test field,and then the results evaluated by the robust Z-score method at four measuring points were all satisfactory.

关 键 词：辐射检验场 辐射测量仪 宇宙射线 校准系数 

分 类 号：TL99[核科学技术—核技术及应用]