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Thermoluminescence characteristics of terbium‐doped Ba~2~Ca(BO~3~)~2~ phosphor by Liyan Liu; Yanli Zhang; Jingquan Hao; Chengyu Li; Qiang Tang; Chunxiang Zhang; Qiang Su is a Materials Science article available to read on EtoBox.

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## Abstract Thermoluminescence (TL) characteristics and dosimetric properties of Ba~2~Ca(BO~3~)~2~ phosphor doped with Tb^3+^ exposed to gamma‐ray irradiation are reported for the first time. Firstly, the influence of different rare earth dopants, i.e. Dy^3+^, Tb^3+^ and Tm^3+^, on TL of Ba~2~Ca(BO~3~)~2~ phosphor is discussed. All glow curves consist of two TL peaks located at 109–120 °C and 199–220 °C and Tb^3+^‐doped Ba~2~Ca(BO~3~)~2~ phosphor exhibits the highest TL sensitivity. Secondly, the effects of concentration of Tb^3+^ and gamma‐ray irradiation dose on TL are investigated. The optimum Tb^3+^ concentration is 2 mol% and the TL kinetic parameters of Ba~2~Ca(BO~3~)~2~:0.02Tb are calculated by the peak shape method. The high‐temperature peak for this sample shifts to higher temperature with increasing irradiation dose. Furthermore, the dosimetric properties of Ba~2~Ca(BO~3~)~2~:0.02Tb phosphor, i.e. the pre‐irradiation annealing treatment, reproducibility and linearity, are studied, the results of which indicate that Tb^3+^‐doped Ba~2~Ca(BO~3~)~2~ phosphor has a potential application in the personal protection dosimetry field. TL emission of the phosphor is observed to peak

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Author

Liyan Liu; Yanli Zhang; Jingquan Hao; Chengyu Li; Qiang Tang; Chunxiang Zhang; Qiang Su

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley; Wiley - V C H Verlag GmbbH & Co. (ISSN 0031-8965)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)