Abstract
A thermoluminescence apparatus using uniform beam intensity profile laser heating was used to determine the effect of heating rate on the thermoluminescent efficiency of MgB4O7:Dy, and the results were substantiated by measuring the transient and total emission spectra from LiF:Mg,Ti, CaSO4:Dy and MgB4O7:Dy thin-layer dosemeters as a function of heating rate. Trap parameters for the two major peaks in MgB4O7:Dy were determined with a second-order electron kinetic model using the variable heating and isothermal TL decay methods. Fading rates and sensitivities are presented for the entire glow curve and the isolated high temperature peak. A new annealing procedure is suggested which makes MgB4O7:Dy a viable candidate for applications in TL dosimetry.
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