Abstract
The effects of various experimental parameters have been investigated in order to optimize potential dosimetric applications of optically stimulated luminescence from LiF:Mg,Ti. These included: (i) the most appropriate filter in the emission channel for optimization of signal to noise ratio, (ii) the effect of sample thickness and self-absorption, (iii) the effects of high dose pre-irradiation for sensitization/radiation damage on the emission spectra and (iv) the effects of the preirradiation annealing/cooling procedures. Two methods have been used to measure the time-stability of the F3+ and F2 emission bands: (i) via the measurement of the OSL intensity (520 or 640nm band) as a function of the laser illumination time and (ii) via the measurement of the emission spectra in the range 500–700nm after 30min illumination by 300mW laser light (457nm). In addition the OSL dependence on the stimulation light intensity has also been investigated.
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