用CaSO_4:Na,Dy测定β照射发生时间  

Determination of elapsed time after β irradiation using CaSO_4: Na, Dy

作　　者：潘文嵩 周智新[1] 

机构地区：[1]上海医科大学放射医学研究所,上海200032

出　　处：《核技术》1992年第12期739-743,共5页Nuclear Techniques

摘　　要：介绍一种新的热释光材料CaSO_4:Na,Dy 的制备方法和发光曲线。它的低、高温峰面积比可用于估算β照射的发生时间,在存放温度为10℃时又可估算三个月以内的事故受照事件的发生时间。The preparation method and TL glow curve of a new TL materials namely CaSO4:Na, Dy were described. The area ratio of low and high temperature glow peaks has been used to estimate the elapsed time after β irradiation. A good estimate of elapsed time after an accidental exposure within 3 months can be made for a dosimeter stored at 10℃.

关 键 词：热释光剂量学 Β射线 TLD 镝 辐照 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]