期刊
RADIATION MEASUREMENTS
卷 137, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radmeas.2020.106427
关键词
Thermoluminescence; Lithium borate; Glow curve analysis; Order of kinetics
This work presents the characterization of the thermoluminescence (TL) glow curve of a copper and silver doped lithium tetraborate (Li2B4O7:Cu,Ag) made using three different methods to identify the number of peaks, the trap structure and the kinetics parameters: TM-Tstop, glow curve fitting (GCF) and various heating rates (VHR). The obtained results can be consistently explained assuming four TL glow peaks in the region 50 -270 degrees C, originated by a complex trap structure: continuous energy distributions for peaks I, III and IV, and general order kinetics (GOK) discrete trapping level for peak II. Quite similar activation energy values have been obtained by GCF and VHR methods.
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