【摘要】 以乘火车旅行经过五指山隧道使旅客所受剂量的变化 ,来说明五指山隧道建设工程这项实践 ,使得旅客所受年集体有效剂量当量不仅没有增加 ,反而有明显减小更多还原

【Abstract】 This paper estimates the doses received by passengers in train when passing through Wuzhi Mountain Tunnel,and compares with doses from natural radiation exposure.The results show that the annual collective doses received by passengers do not increase,but decrease obviously.更多还原