Mechanisms responsible for the appearance of a thermoluminescence glow curve

Abstract

The thermoluminescence (TL) intensity of first- and second-order glow curves is found to be devoid of any correlationship. The TL intensities of second- and higher-order kinetics are, however, representable by a general equation. This discrepancy initiated a reconsideration of the existing mechanisms responsible for the appearance of a TL glow curve. In such an attempt the Adirovitch set of equations is modified. A theoretical model is built up which successfully explains the TL intensity of various orders kinetics including first order. It is found that irrespective of the order of the kinetics involved, TL intensity decays exponentially.