| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1875786 | Applied Radiation and Isotopes | 2015 | 7 Pages |
•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.
