Dosimetric features of strontium orthosilicate (Sr2SiO4) doped with Eu2+

被引:8
作者
Barzowska, J. [1 ]
Chruscinska, A. [2 ]
Przegietka, K. [2 ]
Szczodrowski, K. [1 ]
机构
[1] Univ Gdansk, Inst Expt Phys, PL-80952 Gdansk, Poland
[2] Nicolaus Copernicus Univ, Fac Phys Astron & Informat, Inst Phys, PL-87100 Torun, Poland
关键词
Thermoluminescence; Strontium orthosilicate; Luminescence dosimetry; GREEN;
D O I
10.1016/j.radphyschem.2014.05.043
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Thermoluminescence (TL) of strontium orthosilicate doped with Eu2+ has been investigated in the range RT-750 K. Trap parameters of a U peak at 450 K established by means of glow curve analysis suggest the possibility of applying this sensitive peak for TL dosimetry. The thermal stability test shows that the 450 K peak is partially unstable. The isothermal decay experiments reveal that the traps responsible for this peak can be emptied by a competitive way that is efficient during storage at a constant temperature, and is characterized by lower values of activation energy and frequency factor. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:31 / 35
页数:5
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