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KMID : 0896219980180010113
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Journal of Daegu Health College
1998 Volume.18 No. 1 p.113 ~ p.123
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Determination of Trap Parameters of TLD using Glow Curve Fitting
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Park Myeong-Hwan
Kim Seong-Hwan
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Abstract
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Highly sensitive CaSO₄:Tm TLD are fabricated and their trap parameters are determined. The glow curve of CaSO₄：Tm consists of three glow peaks and these peaks are isolated by the thermal bleaching method. The isolated glow peaks are fitted by a least squares method. The activation energies are 0.68, 0.82 and 1.03 eV. The frequency factors are 8.09×10^(６), 9.14×10^(８) and 1.03×10^(９)/s, and the kinetic orders are 1.37, 1.54 and 1.68, respectively. The optimun temperature range of the main peak for radiation dosimetry is 220~290℃.
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KEYWORD
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