Abstract
The Sr 2Mg(BO 3) 2 phosphors doped respectively with Tm 3+, Tb 3+ and Dy 3+ as activator were prepared by high temperature solid-state reaction. All the thermoluminescence curves of the phosphors consisted of two isolated peaks and the Dy 3+ activated sample exhibited the strongest thermoluminescence intensity. The kinetic parameters of the thermoluminescence of Sr 2Mg(BO 3) 2 : 0.04 Dy were calculated employing the peak shape method and 3 dimensional thermoluminescent emission spectra were observed peaking at 480, 579, 662 and 755 nm due to the characteristic transition of Dy 3+. In addition, the pre-irradiation heat-treatment and the thermoluminescence dose response of Sr 2Mg(BO 3) 2 : 0.04 Dy were investigated.
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