花岗岩近表层^(134)Cs活度直接测量  

DIRECT MEASUREMENT OF 134 Cs ACTIVITY ON SUPERFICIAL STRATIFICATION OF GRANITE FRACTURE

作　　者：李春江[1] 倪世伟[1] 马如维[1] 陈式[1] 

机构地区：[1]中国辐射防护研究院

出　　处：《核化学与放射化学》1997年第2期44-47,共4页Journal of Nuclear and Radiochemistry

摘　　要：核素在岩石裂隙中迁移时，一方面随裂隙水对流弥散，另一方面吸附在岩石裂隙表面并向岩石中扩散。因此，除了测量裂隙出口端流出液浓度外，还需测定裂隙近表层的放射性活度分布。文章描述了岩石裂隙近表层１３４Ｃｓ活度直接测量装置和测量方法，并给出１３４Ｃｓ在花岗岩裂隙近表层活度分布测量结果。When a nuclide migrates in rock fracture,it convects and disperses along the fracture water as well as absorbs and attaches on rock fracture surface.Besides the determination of exit density of the fracture,the density distribution of nuclides in rocks and the activity distritution on fracture surface should also be determined.The direct measurement device and means of measurement of the superficial activity on rock fracture are described in this paper,The determination result of superficial activity distribution of 134 Cs on granite fracture is also given.

关 键 词：花岗岩裂隙 近表层 高放废物 铯134 贮存 放射性 

分 类 号：TL942.212[核科学技术—辐射防护及环境保护]