Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1875976 | Applied Radiation and Isotopes | 2013 | 5 Pages |
Abstract
New glasses Li2CO3-K2CO3-H3BO3 (LKB) co-doped with CuO and MgO, or with TiO2 and MgO, were synthesized by the chemical quenching technique. The thermoluminescence (TL) responses of LKB:Cu,Mg and LKB:Ti,Mg irradiated with 6Â MV photons or 6Â MeV electrons were compared in the dose range 0.5-4.0Â Gy. The standard commercial dosimeter LiF:Mg,Ti (TLD-100) was used to calibrate the TL reader and as a reference in comparison of the TL properties of the new materials. The dependence of the responses of the new materials on 60Co dose is linear in the range of 1-1000Â Gy. The TL yields of both of the co-doped glasses and TLD-100 are greater for electron irradiation than for photon irradiation. The TL sensitivity of LKB:Ti,Mg is 1.3 times higher than the sensitivity of LKB:Cu,Mg and 12 times less than the sensitivity of TLD-100. The new TL dosimetric materials have low effective atomic numbers, good linearity of the dose responses, excellent signal reproducibility, and a simple glow curve structure. This combination of properties makes them suitable for radiation dosimetry.
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Authors
Y.S.M. Alajerami, S. Hashim, A.T. Ramli, M.A. Saleh, M.I. Saripan, K. Alzimami, Ngie Min Ung,