Development of a new thermoluminescent phosphor based on LiF:Mg,Ti

By a slight modification in the dopants incorporation method, a new LiF:Mg,Ti TLD material has been developed with improved properties mainly in stabilization of thermoluminescent (TL) response and linearity. The TL response as well as linearity function of LiF:Mg,Ti under 60Co gamma irradiation were studied in the dose range from 10−3 to 103 Gy. The TL response as a function of gamma dose was linear from 2.5 mGy up to 50 Gy. Experimental results indicated that LiF:Mg,Ti synthesized in Mexico shows high stability and a wide range of linearity. Improvement in linearity could be attributed to Ti concentration. Kinetic parameters were determined by deconvolution of glow curves. Experimental results suggest that this new TLD material shows promising potential for gamma radiation dosimetry.