西安市室内环境辐射水平

Radiative Levels of Indoor Environment in Xia'n City

本文用高灵敏度LiF(Mg,Cu,P)热释光剂量计测量了西安地区居民室内环境辐射水平,并估算了居民受照剂量,结果表明,西安居民室内γ辐射水平为9.10×10^(-8)Gy·h^(-1),宇宙辐射电离成分的贡献为2.82×10^(-8)Gy·h^(-1),室内γ辐射致西安居民的年有效剂量当量和年集体有效剂量当量分别为374 μSv和1.36×10~3Man·Sv。

This paper presents that the radiative levels of indoor environment in Xi'an City were investigated with a high sensitivity thermoluminescent dosimeter-LiF(Mg, Cu, P).The radiative doses absorbed by local residents were also evaluated. The results show that average Y-radiation dose in air absorbed by the residents seems to be 9. 10 X 10-8Gy·h-1 and the contributive component of cosmic ray to be 2.82 × 10 -8Gy·h-1. The annual effective dose equivalent and collective effective dose equivalent have been determined to be 374 μSv and 1.36×103 Man. Sv.