Crystal growth and optical properties of organic crystals for neutron scintillators

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Abstract

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 radioluminesce 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.

Original languageEnglish
Article number2405011
JournalPlasma and Fusion Research
Volume13
Issue number1
DOIs
Publication statusPublished - 2018

Keywords

  • Melt growth
  • Neutron scintillator
  • Optical property
  • Organic scintillator
  • Scintillation crystal
  • Self-seeding vertical bridgman method

ASJC Scopus subject areas

  • Condensed Matter Physics

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