Abstract
The effect of various temperature treatments on TL response characteristics of CaSO4: Dy has been investigated for its reusability when the phosphor has been previously irradiated to increasingly higher gamma doses. In practice, annealing at a standard temperature, namely 400 °C, usually precedes the use or reuse of the phosphor. However, the study demonstrates that the phosphor with a previous history of high accumulated doses does not completely retain its original TL response characteristics with 400 °C treatment unless the phosphor is treated at an elevated temperature, namely 650 °C.
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References
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J.K. Srivastava, S.J. Supe,Phys. Stat. Sol. /a/, 92 /1985/ 573.
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Srivastava, J.K., Supe, S.J. Effect of higher temperature treatments on reusability of CaSO4: Dy TL phosphor exposed to increasingly high gamma doses. Journal of Radioanalytical and Nuclear Chemistry Letters 104, 245–254 (1986). https://doi.org/10.1007/BF02165329
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DOI: https://doi.org/10.1007/BF02165329