Growth, Optical Properties, and Scintillation Light Yield of CaF2:Ce Crystals with Different Ce Concentration

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概要

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• Present work describes the first detailed $\gamma$-ray light yield of Ce3+ perturbed emission in CaF2 host. (1-, 3-, 5-, 10-, and 20-mol %-) Ce3+-doped single crystalline CaF2 scintillator crystals were grown by the micro-pulling-down method. Their transmittances were measured to be approximately 80% at UV to visible wavelengths. All the crystals exhibited emission peaks at approximately 330 nm, which were identified as the Ce3+ perturbed emission, when they were irradiated by 1 GBq 137Cs. The photoluminescence decay kinetics was measured to be about 40 ns for all the crystals. Scintillation light yield in unit of photons/MeV (ph/MeV) was measured, and the 5% sample showed the highest light yield of around 900 ph/MeV with 2 μs shaping time.

• 2010-03-25

著者

• Kamada Kei

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• Yanagida Takayuki

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• Takayuki Yanagida

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

• Kim Kyoung

  LG Display Co., Ltd., 1007 Deogeun-ri, Wollong-myeon, Paju, Gyeonggi-do 413-811, Korea

• Yuui Yokota

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

• Shuji Maeo

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

• Akira Yoshikawa

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

• Noriaki Kawaguchi

  Tokuyama Corporation, Shibuya 3-chome, Shibuya, Tokyo 150-8383, Japan

• Kentaro Fukuda

  Tokuyama Corporation, Shibuya 3-chome, Shibuya, Tokyo 150-8383, Japan

• Nobuhiko Sarukura

  Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan

• Valery Chani

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

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