Instability of Eu2+/Eu3+ photoluminescence in X-irradiated CaSO4: Eu3+

被引：5
|
作者：
Lapraz, D
Prévost, H
Lakshmanan, AR
机构：
[1] Univ Nice, LPES, CRESA, Fac Sci, F-06108 Nice 2, France
[2] Univ Montpellier 2, CNRS, CEM2, UMR 5507, F-34095 Montpellier, France
[3] Indira Gandhi Ctr Atom Res, Radiol Safety Div, Kalpakkam 603102, Tamil Nadu, India
来源：
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 2004年 / 201卷 / 03期
关键词：
D O I：
10.1002/pssa.200306743
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The photoluminescence (PL) properties of a calcium sulphate doped only with trivalent europium are studied before and after X-irradiation. On X-irradiation, a high Eu2+ emission appears clearly, with a simultaneous decrease of the EU3+ PL intensity. The Eu2+/ Eu3+ PL intensity ratio increases as a function of X-air kerma plotted 12 min after X-irradiation which shows that this technique can be used in radiation dosimetry in the high dose region (10(2)-10(4) Gy). However, the PL intensities of Eu3+ and Eu2+ emissions are unstable after X-irradiation at RT. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：596 / 601
页数：6
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