摘要
本文叙述了放射性核素^(137)Cs、^(90)Sr-^(90)Y和^(144)Ce-^(144)Pr在地下水和岩石间的分配系数K_d的实验室测定方法,研究了放射性核素浓度、岩石种类及岩石粒度对K_d值的影响。测定了这三种核素模拟在三万吨TNT地下核爆炸空腔充满水时的浓度下的分配系数K_d值,计算了它们在地下水中的迁移速率。
Th laboratory determination method was presented of distri-bution co ffici nts (K_d) between underground water and rock for radion-uclidos of^(137) Cs, ^(90)Sr-^(90)Y and ^(144)C- ^(144)Pr in this paper.The effects ofradionuclide concentration, rock type and its size .on K_d was also studiedThe values were d t rminded of three kinds of nuclides under the concen-tration simulating that when the hollow cavity formed by underground explosion at 30000 ton grade was full,of Water Their migration velocitiesin underground water were calculated.
出处
《辐射防护》
CAS
CSCD
北大核心
1990年第4期286-290,316,共6页
Radiation Protection
关键词
地下水
放射性
核素
迁移
污染
水
^(137)Cs
^(90)Sr-^(90)Y
^(144)Ce-^(144)Pr
Underground Water
Rock
Migration
Distribution Coefficietet
