Scintillation and dosimeter properties of Ca-doped MgO transparent ceramics

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:435

Article; Proceedings Paper

Kumamoto, Narumi¹  Kato, Takumi¹  Kawano, Naoki²  Okada, Go¹  Kawaguchi, Noriaki¹  Yanagida, Takayuki¹ 

[1] Nara Inst Sci & Technol NAIST, Grad Sch Mat Sci, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan

[2] Akita Univ, Grad Sch Engn Sci, 1-1 Tegatagakuenmachi, Akita, Akita 0108502, Japan

关键词: MgO;    Transparent ceramic;    SPS;    Scintillation;    Dosimeter;    TSL;   

DOI  :  10.1016/j.nimb.2018.01.023

来源: Elsevier

【 摘 要 】

We have synthesized 0.001, 0.01 and 0.1% Ca-doped MgO transparent ceramics by the Spark Plasma Sintering (SPS) method, and then we investigated the optical, scintillation and dosimeter properties. In scintillation spectra, some emission bands appeared around 340, 400, 440, 600 and 750 nm. After X-ray irradiation, all the Ca-doped samples showed TSL with a glow peak similar to 140 degrees C, and the 0.01% Ca-doped sample showed an additional broad peak similar to 250 degrees C. The TSL spectrum consists of a broad peak over 300-500 nm and some peaks around 600 and 750 nm. The TSL response was confirmed to linearly increase with irradiation dose over a dose range from 0.1 to 100 mGy.

【 授权许可】

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