Crystal growth and scintillation properties of Ho-Doped Lu 3Al 5O 12 single crystals

Makoto Sugiyama, Takayuki Yanagida, Yutaka Fujimoto, Daisuke Totsuka, Yuui Yokota, Shunsuke Kurosawa, Yoshisuke Futami, Akira Yoshikawa

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The crystals of 0.1, 0.5, 1, and 3% Ho doped Lu 3Al 5O 12 (Ho:LuAG) grown by the micro-pulling-down method were examined for their scintillation properties. At wavelengths longer than 300 nm, Ho:LuAG crystals demonstrated around 60% transparency with many absorption peaks attributed to Ho 3+ 4f 10-4f 10 transitions. When excited by 241Am α-ray to obtain radio luminescence spectra, broad host emission and four sharp Ho 3+ 4f 10-4f 10 emission peaks were detected in the visible region. Light yields and decay time profiles of the samples irradiated by 137Cs\gamma-ray were measured using photomultiplier tubes R7600 (Hamamatsu). Ho 0.5%:LuAG showed the highest light yield of 3100 ±310 photons/MeV among the present samples. The decay time profiles were well reproduced by two components exponential approximation consisting of 0.5-1 μs and 3-6 μs.

本文言語English
論文番号6180202
ページ(範囲)2141-2145
ページ数5
ジャーナルIEEE Transactions on Nuclear Science
59
5 PART 2
DOI
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 電子工学および電気工学

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