Optical, scintillation and dosimeter properties of MgO transparent ceramic doped with Mn²⁺

• 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)

Bibliographic Information

Other Title

• Optical, scintillation and dosimeter properties of MgO transparent ceramic doped with Mn2+

Abstract

We have investigated the photoluminescence (PL), scintillation and thermally-stimulated luminescence (TSL) dosimeter properties of MgO transparent ceramics doped with different concentrations of Mn²⁺ 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 Mn²⁺ 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

Keywords

• MgO
• Transparent ceramic
• Mn ion
• Dosimeter
• Scintillator

Details

• CRID: 1390282680265044224
• NII Article ID: 130005149970
• DOI: 10.2109/jcersj2.15229
• ISSN: 13486535
• ISSN: 18820743
• Web Site: https://www.jstage.jst.go.jp/article/jcersj2/124/5/124_15229/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed