Computerised glow curve deconvolution (CGCD) based on first order TL kinetics has been used to study the dependence of the TL sensitivity, S, of glow peaks 2, 3 and (4 + 5) on choice of annealing temperature during the low and high temperature annealing procedures commonly applied to LiF:Mg,Ti (TLD-100, Harshaw/Filtrol). This was in order to determine optimal temperatures for these procedures as well as to investigate the role of annealing temperature reproducibility in the requirements of high precision TL dosimetry. The recommended optimum annealing procedure is: (i) 400°C, for 1 h followed by an accelerated 'natural' cooling rate of approximately 150°C · min-1. (ii) 75 ± 3°C, 24 h preirradiation and/or 110°C, 10 min post-irradiation.
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging
- Public Health, Environmental and Occupational Health