Dosimetric properties of α-Al2O3: Tm+PTFE phosphor

A new α-Al2O3 doped with Tm3+ ions was obtained by combustion method; doped α-Al2O3 in the powder form was mixed with polytetrafluoroethylene resin (PTFE) to obtain dosimeters in pellet form, in order to be used as radiation dosimeter. The glow curve, linearity, lower detection limit, repeatability and fading, were studied. The kinetic parameters were determined by deconvolution method. Morphological characteristics were studied by low vacuum scanning electron microscopy and X-ray diffraction. Results showed that α-Al2O3+PTFE obtained is a promising material to radiation dosimetry.