环境γ辐射剂量率受降水影响规律研究

利用高气压电离室连续测量我国东部某地环境γ辐射剂量率,同时监测降水参数。研究发现:降水引起剂量率升高,最大升幅达38.1%,降水总量最大的夏季升幅最大;剂量率升幅大雨中雨小雨;降水强度越大,降水开始后剂量率升高越快,剂量率最大值出现点比降水强度最大值出现点晚约1h。同一降水强度条件下,剂量率升高幅度,冬季春季秋季夏季,降雪降雨。

Study of Influence of Precipitation on Environmental Gamma Radiation Dose Rate

Utilized HPIC the environmental γ dose rates at east of China are measured,the parameter of precipitation rate are monitored at the same time.The study shows that the precipitation enhanced the dose rate,and the maximum increase reached 38.1％,summer was the season which had the maximum precipitation amount and enhanced dose rate.The enhanced extent of dose rate was heavy rain ＞ moderate rain ＞ light rain;The dose rate enhanced faster as the precipitation rate become lager,the maximum of dose rate appeared 1 hour later after that of the precipitation rate.The enhanced extent of dose rate at the same precipitation rate was winter ＞ spring ＞ autumn ＞ summer,and snowfall ＞ rainfall.