节点文献
浙江省放射性伴生石煤矿区天然放射性水平调查
Natural Radioactivity Level in Bone-coal Mines in Zhejiang Province
【摘要】 介绍了对浙江省石煤矿开采现场的 γ辐射剂量率和石煤样品中天然放射性核素比活度的调查结果。调查的 1 0 7家石煤矿分布在 4条石煤条带 ,γ辐射剂量率按各条带矿区测点数加权平均值为 5 66n Gy/h;1 71个石煤样品中 2 38U、2 2 6 Ra、2 32 Th和4 0 K比活度平均值分别为 949、91 8、3 4和 5 5 4Bq/kg。
【Abstract】 The survey results are presented of both γ radiation doserate and specific activity of radionuclides in samples measrued on bone coal (BC) mining sites in Zhejiang Province. The average of γ radiation doserate weighed on measruing point number in 107 coal mines distributed over 4 coal lodes is 566 nGy/h and the averages of specific activity of 238 U, 226 Ra, 232 Th and 40 K in coal samples are measured to be 949,918,34 and 554 Bq/kg,respectively.
- 【文献出处】 辐射防护通讯 ,Radiation Protection Bulletin , 编辑部邮箱 ,2004年04期
- 【分类号】P618.11;X837
- 【被引频次】8
- 【下载频次】143