An independent method for obtaining the activation energy of thermoluminescence glow peaks

摘要

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 (beta(1),beta(2),beta(3)), the corresponding peak temperatures (T-1, T-2, T-3) and intensities (I-1, I-2, I-3) 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.