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CaSO4:Pr, CaSO4:Mn and CaSO4:Mn,Pr thermoluminescence (TL) phosphors have been prepared and their TL glow curves and TL emission spectra are recorded. TL emission bands at 360, 440, 490 and 610nm were observed for CaSO4:Pr in the scanned range. Co-doping of Mn in CaSO4:Pr enhances its TL sensitivity. TL sensitivity of CaSO4:Mn,Pr (0.5, 0.1mol%) is about 47 times that of CaSO4:Pr (0.1mol%). TL emission...
Thermoluminescence (TL) and photoluminescence studies have been carried out on CaSO 4 :Tb, CaSO 4 :Ce and CaSO 4 :Tb,Ce phosphors with the aim of studying energy transfer process in the CaSO 4 :Tb,Ce phosphor. CaSO 4 :Tb,Ce shows TL peaks at 150, 220, 320 and 400 o C. Changes in Tb and Ce concentrations influence the relative heights of these glow peaks...
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