TL response study of the CaSO4:Dy pellets with graphite for dosimetry in beta radiation and low-energy photons fields

被引：4
|
作者：
Daros, KAC
Campos, LL
Medeiros, RB
机构：
[1] Univ Fed Sao Paulo, Dept Diagnost Imagem, EPM, BR-04023900 Sao Paulo, Brazil
[2] IPEN CNEN SP, BR-05499970 Sao Paulo, Brazil
来源：
APPLIED RADIATION AND ISOTOPES | 2001年 / 54卷 / 06期
关键词：
pellets of CaSO4 : Dy plus Teflon; TLD response; TLD sensitivity;
D O I：
10.1016/S0969-8043(00)00324-9
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The CaSO4:Dy is a good thermoluminescent dosimeter because of its high sensitivity and low cost. With graphite in the pellets it is possible to reduce the energy dependence. The sensitivity and energy dependence of the different thicknesses of CaSO4:Dy pellets was studied with different amounts of graphite. The results have shown the optimal quantity of the graphite and the appropriate thickness of the pellets that can be used in dosimetry of beta field, photons or both simultaneously. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：957 / 960
页数：4
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