Optical, scintillation and dosimeter properties of MgO transparent ceramic doped with Mn<sup>2+</sup>  [in Japanese]

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Author(s)

    • KATO Takumi
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
    • OKADA Go
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
    • YANAGIDA Takayuki
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)

Abstract

We have investigated the photoluminescence (PL), scintillation and thermally-stimulated luminescence (TSL) dosimeter properties of MgO transparent ceramics doped with different concentrations of Mn<sup>2+</sup> ion (0.001, 0.01, 0.1 and 1%). The samples were synthesized by a Spark Plasma Sintering (SPS) technique. All the samples show a PL band emission around 730 nm, and the intensity increases with the dopant concentration. The PL decay time constants were a few milliseconds which is on the typical order for Mn<sup>2+</sup> ion. In contrast, the scintillation spectrum under X-rays shows additional emissions at 340, 620 and 760 nm. After the samples are irradiated by X-rays, the TSL is observed with a main glow peak appearing around 140°C. The TSL response is linearly related to the irradiation dose at least over the dose range from 0.1 to 1000 mGy.

Journal

  • Journal of the Ceramic Society of Japan

    Journal of the Ceramic Society of Japan 124(5), 559-563, 2016

    The Ceramic Society of Japan

Codes

  • NII Article ID (NAID)
    130005149970
  • Text Lang
    JPN
  • ISSN
    1882-0743
  • Data Source
    J-STAGE 
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