Principles of TL experiment for Tl2Ga2S3Se crystals: (1) time period of applied illumination; (2) temperature variation with time; (3) TL signal for five linear heating rates: (a) 0.4, (b) 0.6, (c) 0.8, (d) 1.0, and (e) 1.2 K s−1.
TL curves of the Tl2Ga2S3Se crystals for different illumination times at a constant heating rate of β = 1.0 K/s. Inset: Maximum value of TL intensity as a function of illumination time. The dashed-dotted line is only guide for the eye.
Experimental TL curve of Tl2Ga2S3Se crystal with heating rate of β = 1.0 K/s. Open circles are experimental data. Solid curve show fit to the experimental data. Inset: TL intensity vs. 1000/T. Open circles are experimental data and solid line is the fitted straight line.
Experimental TL curves of Tl2Ga2S3Se crystal with different heating rates. Inset: The dependence of peak temperature (open circles) and area (stars) on heating rate. The dashed-dotted lines are only guides for the eye.
Experimental TL curves of Tl2Ga2S3Se crystals at different illumination temperatures T ill. Inset 1: Activation energy versus illumination temperature. The dashed-dotted line is only guide for the eye. Inset 2: ln (S 0) plot as a function of activation energy.
The activation energy (E t), capture cross section (S t), and attempt-to-escape frequency (v) of revealed trap of the Tl2Ga2S3Se single crystal.
TL parameters for Tl2Ga2S3Se crystal at different illumination temperatures.
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