Investigation of TL dosimetric properties of CaF2: Tm (TLD-300) crystals

In this study, the thermoluminescence properties of CaF2: Tm (TLD-300) were investigated in detail after β-irradiation at room temperature. The glow curve of the sample shows two main dosimetric glow peaks P3 (at ≈150 oC) and P5 (at ≈250 oC). The additive dose (AD), variable heating rate (VHR), computer glow curve deconvolution (CGCD), peak shape (PS) and three points (TP) methods have been used to evaluate the trapping parameters namely the order of kinetics (b), activation energy (E) and the frequency factor (s) associated with the dosimetric thermoluminescent (TL) glow peaks (P3 and P5) of CaF2: Tm (TLD-300) after different dose levels with β-irradiation. Keywords: trapping parameters; thermoluminescence dosimetry; CaF2: Tm (TLD-300)