Dependence of glow curve structure on the concentration of dopants in LiF:Mg,Cu,Na,Si phosphor

被引：26
|
作者：
Nam, YM [1 ]
Kim, JL [1 ]
Chang, SY [1 ]
机构：
[1] Korea Atom Energy Res Inst, Dept Hlth Phys, Taejon, South Korea
来源：
RADIATION PROTECTION DOSIMETRY | 1999年 / 84卷 / 1-4期
关键词：
D O I：
10.1093/oxfordjournals.rpd.a032725
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The dependence of dopants concentration on glow curve structure of newly developed LiF:Mg,Cu,Na,Si phosphor has been investigated. LiF samples with different dopants concentration were prepared by varying the concentrations of Mg (0-1.0 mol%), Cu (0-1.0 mol%) and NaSi (0-2.4 mol%) and their glow curve shapes were analysed after Cs-137 gamma irradiation. The intensity of the main peak has a strong influence on Mg concentration. The intensity of the high temperature peak tends to be reduced with increasing Cu concentration; Cu inhibits the growth of the high temperature peak. NaSi was an effective dopant to obtain the high intensity of the low temperature peak and main peak. The optimum composition of dopants was found to be Mg 0.6 mol%, Cu 0.8 mol% and NaSi 1.8 mol%. This phosphor has about two times higher sensitivity than that of LiF:Mg,Cu,P.
引用
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页码：231 / 234
页数：4
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