| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1888488 | Radiation Measurements | 2012 | 4 Pages |
Preliminary results of an attempt to prepare LiAlO2 material with high optically stimulated luminescence (OSL) sensitivity are reported. LiAlO2 was prepared by melting a stoichiometric mixture of Li2CO3 and Al2O3 powders in a RF heating furnace. CW-OSL signal as recorded on Risoe TL/OSL reader using blue (470 nm) stimulation was found to be up to 16 times of that of Al2O3:C. The promising characteristics of LiAlO2, open up a possibility of an improved material not only for passive dosimetry of mixed fields of neutron and gamma rays but also for online measurements and dose mapping/imaging applications.
► Newly developed LiAlO2 exhibits OSL sensitivity up to 16 times of that of Al2O3:C. ► Blue (470 nm) stimulated OSL signal is studied for different durations. ► Residual signal was 0.02% for initial readout for doses below 0.2 Gy ► Dose response is linear in the studied dose range from 90 mGy to 2.25 Gy ► Post-irradiation storage fading of OSL signal is less than 17% within initial 10 h.
