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Radiation Protection Dosimetry 101:239-242 (2002)
© 2002 Oxford University Press

The Application of Computerised Analysis of Glow Curves to Personal Dosimetry in LiF:Mg,Cu,P

K. Y. Tang, H. Y. Zhu, B. X. Liu, W. X. Shen and Y. C. Wang

In personnel monitoring services, it is important to omit the high-temperature annealing process so that large numbers of TL detectors can be produced economically. There are two efficient ways of reducing the residual signal of LiF:Mg,Cu,P. One is by increasing the maximum readout temperature and the other is by improving the preparation procedure (increasing the Cu concentration and the sintering temperature) but both reduce the TL sensitivity. In personal dosimetry the real dosimetric signals are separated from the residual signals by computerised analysis of glow curves. The adverse influence of the high residual signals of LiF:Mg,Cu,P TL material has been effectively eliminated and the sensitivity remains stable. A good dosimetric result using only reader measurement without pre-irradiation oven annealing is attained in a dose range of 50-80,000 µGy.


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