Dosimeter properties of MgO transparent ceramic doped with C

Abstract

We have investigated the photoluminescence (PL), scintillation and thermally-stimulated luminescence (TSL) dosimeter properties of MgO ceramic doped with C ions (0.001, 0.01 and 0.1 %). The samples were synthesized by a Spark Plasma Sintering (SPS) technique. The PL emission peaks appeared around 400 and 750 nm in all the samples. The PL decay time constants at 400 nm were ~10 and ~100 ns which were on the typical order of F + center in the undoped MgO. The scintillation emission peaks were detected at 330, 400 and 750 nm under X-ray irradiation. The TSL glow curves showed the ~250 °C peak in 0.1 % C-doped sample. The TSL response was confirmed to be linear to the irradiation dose over the dose range from 0.1 to 1000 mGy. As a result, the sensitivity of MgO was improved by C-doping.

Enhanced anti-Escherichia coliproperties of Fe-doping in MgO nanoparticles

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Thermally stimulated luminescence properties of transparent ceramics for personal dosimetry

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