Lithium fluoride-Teflon microrods irradiated at 77 K show a 20% decrease in sensitivity compared to samples irradiated at room temperature. Measurements were made at60 Co and 50 kVp energies in both the linear and supralinear response regions. The observed decrease in sensitivity is attributed to a decrease in the number of electrons trapped in levels contributing to the main glow curve peak. A mechanism of competing trapping states present only at low temperatures can explain the general features of the data. Some electrons, normally trapped in the main glow curve energy levels, are instead bound to lower temperature competing traps. These do not contribute to the integrated thermoluminescent intensity because of rapid fading at room temperature.
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Research Article| November 01 1973
Low-Temperature Response of LiF-Teflon Dosimeters
Joan Seibert ;
Radiat Res (1973) 56 (2): 232–237.
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P. Milvy, C. G. Orton, Joan Seibert, L. A. Kaufman; Low-Temperature Response of LiF-Teflon Dosimeters. Radiat Res 1 November 1973; 56 (2): 232–237. doi: https://doi.org/10.2307/3573661
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