The effect of various experimental parameters on glow peaks and TL kinetics of some dosimetric materials

Either natural fluride which contains, depending on its origin, a wide variety of different impurities acting as activators, or synthetic CaF2 as a host lattice with artificial dopants such as Tm, Dy, and Mn have been used as dosimeter. The samples used in this study were CaF2:Dy (TLD-200), CaF2:Tm (TLD-300) and CaF2:Mn (TLD- 400) crystal chips obtained from Harshaw Chemical Company, Ohio, USA. In this study we have investigated the effect of heating rate on the dose response and linearities of these samples by evaluating their supra / super linearity indexes, f(D) and g(D) respectively. Also the fading characteristics of the samples both in the dark and under tungsten filament lamp and the effect of heating rate on shape of the glow curves and total peak areas of the glow curves have been investigated in detail.Lithium triborate, (LiB3O5, LBO), is one of the most known lithium borates. It is a newly developed nonlinear optical crystal. In this work, the trapping parameters of Al- doped LiB3O5, synthesized in Middle East Technical University, were evaluated by using different experimental methods, namely; the additive dose repeated initial rise, variable heating rate, peak shape, isothermal decay, three points methods and the computerized glow curve deconvolution method.