Comparative study of scintillation and dosimetric properties between Tm-doped CaF2 translucent ceramic and single crystal

被引：16
作者：
Kawano, Naoki [1 ]
Nakauchi, Daisuke [2 ]
Fukuda, Kentaro [3 ]
Okada, Go [2 ]
Kawaguchi, Noriaki [2 ]
Yanagida, Takayuki [2 ]
机构：
[1] Akita Univ, Grad Sch Engn Sci, Akita 0108502, Japan
[2] Nara Inst Sci & Technol NAIST, Grad Sch Sci & Technol, Ikoma, Nara 6300192, Japan
[3] Tokuyama Corp, Shunan, Yamaguchi 7458648, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 10期
基金：
日本科学技术振兴机构;
关键词：
GLOW-CURVE; LIF-MG; CU; P DETECTORS; LUMINESCENCE; TLD-300; SPECTROSCOPY;
D O I：
10.7567/JJAP.57.102401
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We fabricated a Tm-doped CaF2 translucent ceramic by spark plasma sintering (SPS), and evaluated its photoluminescence (PL), scintillation, and dosimetric properties compared with those of a single crystal. Both the samples exhibited emission peaks originating from the 4f-4f transitions of Tm3+ under visible-light and X-ray irradiation. The intensities of PL and scintillation for the single crystal were higher than those for the translucent ceramic. Regarding thermally stimulated luminescence (TSL), both the samples showed main glow peaks at approximately 145 and 265 degrees C. The Tm-doped translucent ceramic exhibited a higher TSL sensitivity than did the single crystal and showed a linear response against X-ray dose over the dose range from 0.01 to 1000 mGy. (C) 2018 The Japan Society of Applied Physics
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页数：4
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