Angeli Vasiliki, Polymeris George S, Sfampa Ioanna K, Tsirliganis Nestor C, Kitis George
Aristotle University of Thessaloniki, Nuclear Physics Laboratory, 54124 Thessaloniki, Greece.
Insitute of Nuclear Sciences, Ankara University, TR-06100 Beşevler, Ankara, Turkey.
Appl Radiat Isot. 2017 Apr;122:89-95. doi: 10.1016/j.apradiso.2017.01.014. Epub 2017 Jan 18.
Natural calcium fluoride has been commonly used as thermoluminescence (TL) dosimeter due to its high luminescence intensity. The aim of this work includes attempting a correlation between specific TL glow curves after bleaching and components of linearly modulated optically stimulated luminescence (LM-OSL) as well as continuous wave OSL (CW-OSL). A component resolved analysis was applied to both integrated intensity of the RTL glow curves and all OSL decay curves, by using a Computerized Glow-Curve De-convolution (CGCD) procedure. All CW-OSL and LM-OSL components are correlated to the decay components of the integrated RTL signal, apart from two RTL components which cannot be directly correlated with either LM-OSL or CW-OSL component. The unique, stringent criterion for this correlation deals with the value of the decay constant λ of each bleaching component. There is only one, unique bleaching component present in all three luminescence entities which were the subject of the present study, indicating that each TL trap yields at least three different bleaching components; different TL traps can indicate bleaching components with similar values. According to the data of the present work each RTL bleaching component receives electrons from at least two peaks. The results of the present study strongly suggest that the traps that contribute to TL and OSL are the same.
天然氟化钙因其高发光强度而被广泛用作热释光（TL）剂量计。这项工作的目的包括尝试建立漂白后的特定TL发光曲线与线性调制光激发发光（LM-OSL）以及连续波光激发发光（CW-OSL）的成分之间的相关性。通过使用计算机化发光曲线去卷积（CGCD）程序，对RTL发光曲线的积分强度和所有OSL衰减曲线进行了成分解析分析。除了两个不能直接与LM-OSL或CW-OSL成分相关的RTL成分外，所有CW-OSL和LM-OSL成分都与积分RTL信号的衰减成分相关。这种相关性的独特、严格标准涉及每个漂白成分的衰减常数λ的值。在本研究的所有三个发光实体中只存在一个独特的漂白成分，这表明每个TL陷阱至少产生三种不同的漂白成分；不同的TL陷阱可能表明具有相似值的漂白成分。根据本工作的数据，每个RTL漂白成分至少从两个峰接收电子。本研究结果强烈表明，对TL和OSL有贡献的陷阱是相同的。
