The two-level version of semi-localized transitions (SLT) model for thermoluminescence dosimeter

摘要

Mandowski (2005) has developed the semi-localized transitions (SLT) model which is the combination of both simple trap model (STM) and localized transition (LT) model. This model explained anomalous behaviours such as displacement peaks, double peaks, etc. The SLT allows trapped charge carriers to be excited to the conduction band. Calculated TL glow curves of the SLT model show two peaks that are related to transition of the charge carrier between trap and excited state. This additional peak named displacement peak was shown in several TL. studies. The researchers have shown that, the main peak of LiF:Mg,Ti, consists of three overlapping glow peaks in which the peak 5a is believed to be related to LTs, while the peak 5 relates to carriers that escaped from the T-RC pair system.