铁路车站X射线行李包检查系统放射防护情况调查

为调查铁路车站X射线行李包检查系统放射防护水平,2017年至2019年对6个铁路车站3种型号检测系统的行李包入口和出口,系统上盖板、左侧、右侧5个位置的空气比释动能率进行620台次检测.结果显示,620台次检测的空气比释动能率检查结果均合格,不同型号、不同检测位置空气比释动能率有统计学差异,其中C型5个检测位置的空气比...

Investigation on Radiation Protection of X-ray Luggage Inspection System in Railway Stations

In order to investigate the radiation protection level of X-ray luggage inspection system in railway stations,620 times of air kerma rates tests were carried out at luggage entrance and exit,system upper cover plate,left side and right side of three models in six railway stations from 2017 to 2019.The results show that the air kerma rates of 620 tests are all qualified,and there are statistical differences in air kerma rates of different types of systems and different detection positions.Among them,the air kerma rates of C type are the highest in five detection positions,and the air kerma rates at the entrance and exit of three types of systems are higher.It shows that the protection level of X-ray luggage inspection system in six railway stations is good,it is suggested that the stations strengthen daily maintenance management.