Abstract

The features of the thermoluminescence (TL) glow curve with second order kinetics are found to be different than that of a first order glow curve. Mechanisms responsible for the appearance of a TL glow curve have been reinvestigated. A modification has been proposed of the existing Adirovitch set of equations. An attempt has also been made to develop a general expression for representing the TL intensities of first and second order glow curves. It has been found that equal concentrations of trapped electrons ( n) and recombination centres ( m) lead to give a condition for the first order kinetics. For second order kinetics recombination and retrapping probabilities are found to be equal along with the condition m < n.

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