Radioluminescence of rare-earth doped potassium yttrium fluorides crystals

被引：8
|
作者：
Molina, P. [1 ,2 ]
Santiago, M. [1 ,2 ]
Marcazzo, J. [1 ,2 ]
Spano, F. [3 ]
Khaidukov, N. [4 ]
Caselli, E. [1 ,5 ]
机构：
[1] Univ Nacl Ctr Prov Buenos Aires UNICEN, Inst Fis Arroyo Seco, RA-7000 Tandil, Argentina
[2] Consejo Nacl Invest Cient & Tecn CONICET, RA-1033 Buenos Aires, DF, Argentina
[3] ARN, RA-1429 Buenos Aires, DF, Argentina
[4] Russian Acad Sci, Inst Gen & Inorgan Chem, Moscow 119991, Russia
[5] CICPBA, RA-1900 La Plata, Argentina
来源：
RADIATION MEASUREMENTS | 2011年 / 46卷 / 12期
关键词：
Radioluminescence; Potassium rare-earth fluoride; In-vivo dosimetry; OPTICALLY STIMULATED LUMINESCENCE; REAL-TIME DOSIMETRY; THERMOLUMINESCENCE; SIGNAL;
D O I：
10.1016/j.radmeas.2011.05.043
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The radioluminescence (RL) properties of K2YF5 crystals doped with Ce3+, Tb3+ and Dy3+ under ionizing irradiation excitation have been studied for the first time. The main objective of this work has been to assess the feasibility of using these crystals as detectors for fiberoptic radioluminescent dosimetry. In particular, it has been found that the RL intensity from both K2YF5:Tb (10%) and K2TbF5 is comparable to that from a commercial Al2O3:C crystal. Longer wavelength emission from these fluorides makes simple optical filtering technique possible to use in order to avoid the stem effect. Afterglow decay times for these fluorides have been found to be similar to that for Al2O3:C and, in particular, K2TbF5 does not show longer afterglow decay time compared to Al2O3:C. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1361 / 1364
页数：4
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