不同年份舟山口岸γ射线辐射本底调查分析

The Investigation and Analysis on γ Radiation Background at Zhoushan Port in Different Years

本文对不同年份舟山口岸γ辐射的剂量当量率进行分析,结果范围在0.06—0.17usv/h。提出靠泊船舶及货物在γ辐射监测时,扣除本底值应以码头边缘测得值为好。本调查为全国口岸开展放射性监测积累资料。

This paper analysed the equivalent ratio of γ radiation doses at zhoushan port in different years, the results showed that the equivalent ratio were from 0.06 to 0.17 usv/h. The equivalent ratios between dock and edge of it's dock were quite differeat, the equivalent ratio of dock were much higher than edge of dock (P<0.001). The equivalent ratios in same dock and same edge of dock were not much change in different years.