Comprehensive Study on Ce-Doped (Gd, La) 2 Si 2 O 7 Scintillator

Shunsuke Kurosawa, Takahiko Horiai, Rikito Murakami, Yasuhiro Shoji, Jan Pejchal, Akihiro Yamaji, Shohei Kodama, Yuji Ohashi, Yuui Yokota, Kei Kamada, Akira Yoshikawa, Akimasa Ohnishi, Mamoru Kitaura

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Ce-doped (Gd, La) 2 Si 2 O 7 (Ce:La-GPS) scintillator was found to have a good light output of around 40 000 photons/MeV, while some other parameters have not been determined so far. In order to clarify the cause for such a high light yield, some physical parameters have been estimated in this paper. The bandgap energy of Ce:La-GPS was evaluated to be over 7.13 ± 0.03 eV for (Gd 0.75 , La 0.25 ) 2 Si 2 O 7 . Although Ce:La-GPS had wider bandgap compared with the other oxide scintillators, its light output was larger than values for some other scintillators. Since quantum yield of Ce:La-GPS was as high as around 0.8, the product of transfer efficiency and electron-hole pair generation efficiency was estimated to be around 0.9, which was higher than for the other scintillators. Thus, Ce:La-GPS was suggested to have high the product of transfer efficiency and/or electron-hole pair generation efficiency.

本文言語English
論文番号8368278
ページ(範囲)2136-2139
ページ数4
ジャーナルIEEE Transactions on Nuclear Science
65
8
DOI
出版ステータスPublished - 2018 8

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

フィンガープリント

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