Crystal Growth and Optical Properties of Organic Crystals for Neutron Scintillators

• YAMAJI Akihiro

  Institute for Materials Research, Tohoku University

• KUROSAWA Shunsuke

  New Industry Creation Hatchery Center, Tohoku University Faculty of Science, Yamagata University

• OHASHI Yuji

  Institute for Materials Research, Tohoku University

• YOKOTA Yuui

  New Industry Creation Hatchery Center, Tohoku University

• KAMADA Kei

  New Industry Creation Hatchery Center, Tohoku University

• YOSHIKAWA Akira

  Institute for Materials Research, Tohoku University New Industry Creation Hatchery Center, Tohoku University

抄録

This paper presents the study of prospective organic-based materials, trans-stilbene and p-terphenyl, as their potential application for new neutron scintillators. Growth of their single crystals by the self-seeding vertical Bridgman method is reported. And evaluation of grown crystals concerning the composition, optical and luminescence properties, and scintillation performance at room temperature is discussed. Their photo- and radio-luminesce spectra were peaking at 388 and 408 nm, their quantum yield was of 52.4% and 79.7%, and the light yield were of 0.89 and 1.80 times higher than that of GS-20 standard, respectively. The scintillation decay times of 8.2 ns (trans-stilbene) and 5.8 ns (p-terphenyl) were observed as well.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 13 (0), 2405011-2405011, 2018

  一般社団法人 プラズマ・核融合学会

キーワード

• scintillation crystal
• melt growth
• organic scintillator
• neutron scintillator
• self-seeding vertical Bridgman method
• optical property

詳細情報

• CRID: 1390282680232585088
• NII論文ID: 130006639026
• DOI: 10.1585/pfr.13.2405011
• ISSN: 18806821
• Web Site: https://www.jstage.jst.go.jp/article/pfr/13/0/13_2405011/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
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• 抄録ライセンスフラグ: 使用不可