Evaluations of scintillation properties of LiSrAlF6 scintillator for thermal neutron detection

Takayuki Yanagida, Noriaki Kawaguchi, Yutaka Fujimoto, Yuui Yokota, Atsushi Yamazaki, Kenichi Watanabe, Kei Kamada, Akira Yoshikawa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Ce 1%, Eu 1%, and Eu 2%-doped LiSrAlF6 (LiSAF) single crystals were grown by the micro-pulling-down (-PD) method for thermal neutron applications. The crystals were transparent, 2.0 mm in diameter and 20-40 mm in length. Neither visible inclusions nor cracks were observed. Their transmittance spectra were measured. The strong absorption lines were observed at 200, 240, and 300 nm for Ce:LiSAF due to Ce3 4f-5d transition. In Eu:LiSAF, 200 (4f-5d) and 300 (4f-4f) nm absorption lines appeared. When they were irradiated by 241Am -ray simulating neutron excitation, strong emission peak appeared at 300 nm in Ce:LiSAF and 370 nm in Eu:LiSAFs, respectively. Thermal neutron responses were investigated under 252Cf irradiation. The absolute light yield of Ce, Eu 1%, and Eu 2% samples were 3400, 18000, and 30000 ph/n, respectively. Main components of the scintillation decay time of Ce, Eu 1%, and Eu 2%-doped LiSAFs were 63, 1293, and 1205 ns.

本文言語English
ホスト出版物のタイトルIEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010
ページ182-184
ページ数3
DOI
出版ステータスPublished - 2010 12 1
イベント2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 - Knoxville, TN, United States
継続期間: 2010 10 302010 11 6

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
ISSN(印刷版)1095-7863

Other

Other2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
国/地域United States
CityKnoxville, TN
Period10/10/3010/11/6

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング

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