用超薄型热释光元件测量介质对β射线反散射的方法  

Measurement of β ray backscattering coefficients by an ultrathin TLD

作　　者：周智新 

机构地区：[1]上海市放射医学研究所

出　　处：《核技术》1990年第10期628-631,共4页Nuclear Techniques

摘　　要：本文定义了介质表面β吸收剂量的反散射系数,提示了用超薄型热释光元件测量此系数的方法,并且列出了用这种方法测到的某些介质的β吸收剂量的反散射系数。从所测数据可见,聚乙烯及纸的β反散射系数最小。文中也讨论了β吸收剂量反散射系数的某些变化规律和应用。The β-ray backscattering coefficient for absorbed dose in the medium surface is defined. A method for measuring β-ray backscattring coefficient by ultrathin TLD is described. Among those media measured, the backscattering coefficients of polyethylene and paper were the least. Some regularity and applications of the backscattering coefficients were discussed.

关 键 词：粒子 剂量 热释光剂量计 反射线 

分 类 号：TL818.3[核科学技术—核技术及应用]