DETERMINATION OF THE TRAPPING PARAMETERS OF GLOW PEAKS OF CAF2:DY(TLD-200) BY USING COMPUTER GLOV CURVE DECONCOLUTION METHOD

Authors : Determination Of The Trapping Parameters OF

Pages : 249-256

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Computerized glow curve deconvolution method is used to determine the number of peaks, the order of kinetics b, the activation energy Ea,frequency factor s and number of the trapped electrons n0 associated with the glow peaks in single crystal of CaF2:Dy insert ignore into journalissuearticles values(TLD-200);. Glow curve analysis indicate that the glow curve in the temperature region between room temperature and 250 oC can be best described as a superposition of six peaks. First five peaks are described by first-order kinetics and sixth peak general-order kinetic. The number of trapped electrons, activation energies and frequency factor for individual glow peaks are as follows: insert ignore into journalissuearticles values(Peak 1); 3x1013, 1.27 and 2.13x1017, insert ignore into journalissuearticles values(Peak 2); 6.3x1013, 1.01 and 9.2x1012, insert ignore into journalissuearticles values(Peak 3); 3.3x1014, 0.7 and 6.12x107, insert ignore into journalissuearticles values(Peak 4); 2.4x1014, 1.14 and 3.28x1012, insert ignore into journalissuearticles values(Peak 5); 1.5x1014, 0.84 and 2.56x108, insert ignore into journalissuearticles values(Peak 6); 2.4x1014, 0.98 and 1.76x109.
Keywords : Turk J Phys, 25, 2001, 249 256 Turk J Phys, vol 25, iss 3