AN INDEPENDENT METHOD FOR OBTAINING THE ACTIVATION ENERGY OF THERMOLUMINESCENCE GLOW PEAKS

Abstract

The activation energy E (eV) of the first-order thermoluminescence (TL) glow peak is currently obtained using a two heating rates method. However, this method having the common drawback, that it assumes the first-order kinetics in the luminescence process. In the present work, an equation is suggested to determine the activation energy E (eV) of any glow peak, independent on the kinetics order of the process. To apply this method, three heating rates (β1,β2,β3), the corresponding peak temperatures (T1,T2,T3) and intensities (I1,I2,I3) of the isolated glow peaks are required. The applicability of the suggested method is demonstrated here by taking some numerically computed first-, second- and general-order TL glow peaks.