کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1875786 | 1532098 | 2015 | 7 صفحه PDF | دانلود رایگان |
• Optically stimulated luminescence (OSL) properties of several known thermoluminescent materials were investigated.
• CaF2:Mn did not show an OSL response with either IR or blue light stimulation.
• Li2B4O7:Cu and LiF:Mg,Ti demonstrated very weak OSL signals only under blue light excitation.
• CaSO4:Tm exhibited OSL under both IR and blue light stimulation.
• OSL properties of CaSO4:Tm indicated an optimal OSL readout regime.
This paper reports on an investigation into the optically stimulated luminescence (OSL) properties of several known thermoluminescent materials, namely LiF:Mg,Ti, Li2B4O7:Cu, CaSO4:Tm, and CaF2:Mn. Samples were irradiated to air doses of 15 mGy, 150 mGy and 1.5 Gy and analyzed using a commercially available OSL reader system to determine their luminescence response to continuous blue and infrared light (IR) excitation, centered at 470 nm and 830 nm wavelengths, respectively. CaF2:Mn did not show an OSL response with either IR or blue light stimulation. Li2B4O7:Cu and LiF:Mg,Ti demonstrated relatively weak OSL signals only under blue light excitation. CaSO4:Tm exhibited OSL under both IR and blue light stimulation at sensitivities roughly one order of magnitude less than the OSL response of α-Al2O3:C under the same conditions.
Journal: Applied Radiation and Isotopes - Volume 99, May 2015, Pages 155–161