Pr3+添加APLF（20AI（PO3）3‒80LiF）シンチレータの 紫外光発光特性の温度特性

坪井 瑞輝; 武田 耕平; 中里 智治; 河野 雅弘; 山ノ井 航平; Marilou Cadatal-RADUBAN; 酒井 浩平; 西 亮祐; 南 佑輝; Mui Viet LUONG; 有川 安信; 清水 俊彦; 猿倉 信彦; 乗松 孝好; 中井 光男; 疇地 宏; 村田 貴広; 藤野 茂; 吉田 英樹; 吉川 彰; 佐藤 仲弘; 菅 博文; 鎌田 圭

doi:10.2184/lsj.45.3_181

Temperature Dependence of the Ultraviolet Luminescence of Pr3+-Doped 20Al(PO3)3-80LiF Glass Scintillator

Mizuki TSUBOI, Kohei TAKEDA, Tomoharu NAKAZATO, Masahiro KONO, Kohei YAMANOI, Marilou Cadatal-RADUBAN, Kohei SAKAI, Ryosuke NISHI, Yuki MINAMI, Mui Viet LUONG, Yasunobu ARIKAWA, Toshihiko SHIMIZU, Nobuhiko SARUKURUA, Takayoshi NORIMATSU, Mitsuo NAKAI, Hiroshi AZECHI, Takahiro MURATA, Shigeru FUJINO, Hideki YOSHIDA, Akira YOSHIKAWA, Nakahiro SATO, Hirofumi KAN, Kei KAMADA

Author information

Mizuki TSUBOI
Institute of Laser Engineering, Osaka University
Kohei TAKEDA
Institute of Laser Engineering, Osaka University
Tomoharu NAKAZATO
Institute of Laser Engineering, Osaka University
Masahiro KONO
Institute of Laser Engineering, Osaka University
Kohei YAMANOI
Institute of Laser Engineering, Osaka University
Marilou Cadatal-RADUBAN
Centre for Theoretical Chemistry and Physics, Institute of Natural and Mathematical Sciences, Massey University
Kohei SAKAI
Institute of Laser Engineering, Osaka University
Ryosuke NISHI
Institute of Laser Engineering, Osaka University
Yuki MINAMI
Institute of Laser Engineering, Osaka University
Mui Viet LUONG
Institute of Laser Engineering, Osaka University
Yasunobu ARIKAWA
Institute of Laser Engineering, Osaka University
Toshihiko SHIMIZU
Institute of Laser Engineering, Osaka University
Nobuhiko SARUKURUA
Institute of Laser Engineering, Osaka University
Takayoshi NORIMATSU
Institute of Laser Engineering, Osaka University
Mitsuo NAKAI
Institute of Laser Engineering, Osaka University
Hiroshi AZECHI
Institute of Laser Engineering, Osaka University
Takahiro MURATA
Kumamoto University
Shigeru FUJINO
Kyushu University
Hideki YOSHIDA
Ceramic Research Center of Nagasaki
Akira YOSHIKAWA
Institute for Materials Research, Tohoku University
Nakahiro SATO
Hamamatsu Photonics K. K
Hirofumi KAN
Hamamatsu Photonics K. K
Kei KAMADA
New Industry Creation Hatchery Center, Tohoku University

Keywords: Scintillator, Neutron diagnostics, Inertial confinement fusion

JOURNAL FREE ACCESS

2017 Volume 45 Issue 3 Pages 181-

DOI https://doi.org/10.2184/lsj.45.3_181

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Abstract

The development of scintillator materials for scattered neutrons is essential in studying laser fusion experiments. We have previously investigated and proposed Pr3+-doped 20Al(PO3)3-80LiF (APLF + Pr) glasses as scintillators for neutron detection. The APLF + Pr glass emissions are then investigated with synchrotron radiation excitation and varying sample temperature. APLF + Pr glasses exhibit luminescence emissions located at 200 to 300 nm and 400 nm attributed to the 4f5d→4f2 and 4f2→4f2 (1S0→3Pj + 1I6) transitions, respectively. In addition, the 200 to 300-nm emission is not substantially affected by temperature, while the 400-nm emission intensities increase with decreasing sample temperature. This temperature dependence is attributed to cross relaxation whose effect can be controlled by the Pr-doping concentration. Our results suggest that doping concentration of APLF + Pr must be optimized and that APLF + Pr glasses must operate at low temperatures for better neutron detection.

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