Growth of 6Li-enriched LiCl/BaCl2eutectic as a novel neutron scintillator

Yui Takizawa, Kei Kamada, Masao Yoshino, Ryuga Yajima, Kyoung Jin Kim, Vladimir V. Kochurikhin, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this study, Eu:6LiCl/BaCl2 with a high Li concentration was developed as a novel thermal neutron scintillator. Eu ions were doped as activators for the BaCl2 phase, and Eu:6LiCl/BaCl2 eutectics were grown via the vertical Bridgman-Stockbarger method in quartz ampoules (inner diameter = 4 mm). The Eu:6LiCl/BaCl2 eutectic exhibited a lamellar eutectic structure and optical transparency. The 400 nm emission due to the Eu2+ 4f-5d transition was observed in the BaCl2 phase by a cathode luminescence measurement. The light yield under neutrons was estimated to be over 20 200 photons MeV-1. A PSD study was also performed using gamma and alpha-rays. The Eu:6LiCl/BaCl2 eutectic scintillator showed good potential for PSD.

Original languageEnglish
Article numberSC1038
JournalJapanese journal of applied physics
Publication statusPublished - 2022


  • eutectic
  • melt growth
  • neutron
  • scintillator

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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