EFFECTIVE CO-DOPANTS FOR CASO4-DY AND CASO4-TM PHOSPHORS

被引：32

作者：

ATONE, MS ^{[1
]}

MOHARIL, SV ^{[1
]}

GUNDURAO, TK ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,RSIC,BOMBAY 400076,MAHARASHTRA,INDIA

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1995年 / 28卷 / 06期

关键词：

D O I：

10.1088/0022-3727/28/6/032

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

CaSO4:Dy and CaSO4:Tm are highly sensitive phosphors used in the thermoluminescence (TL) dosimetry of the ionizing radiations. It is shown that, by using P, Mo or SO3 as co-dopants, the TL sensitivities can be increased by 40-100%. The increase in sensitivity originates in various processes, which are discussed. P acts as a charge compensator, allowing the incorporation of Dy in higher concentration without causing quenching. Mo increases the efficiency of trap filling. It is claimed that use of Mo as a co-dopant will improve the sensitivities without disturbing the other dosimetric characteristics.

引用

页码：1263 / 1267

页数：5

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