Trapping parameters for peak IV in LiF TLD-100

摘要: In the TL glow curve of LiF TLD-100, peak IV appears as a shoulder to V. There are few data available on trapping parameters for this in literature. The relative intensities two peaks were reversed by annealing sample at 423K 23 h before irradiation. Trapping determined such using four different methods: (i) isothermal decay, (ii) initial rise, (iii) area, and (iv) shape. order kinetics value (b) was found be between 1.4 1.5 both from decay area methods, indicating retrapping charges during emission. Another physically meaningful parameter i.e. ratio probability recombination alpha / beta , 0.1 these methods. Activation energy E estimated shape rise methods is have range 1.26-1.46 eV. Frequency factor s independent study it has 1.06-1.5*1013 s-1, which lattice vibration frequencies.