Neutron detection with LiCaAlF6 scintillator doped with 3d-transition metal ions

Noriaki Kawaguchi, Takayuki Yanagida, Yutaka Fujimoto, Yuki Furuya, Yoshisuke Futami, Akihiro Yamaji, Kenichi Watanabe, Atsushi Yamazaki, Akira Uritani, Shinji Kajimoto, Hiroshi Fukumura, Shunsuke Kurosawa, Yuui Yokota, Jan Pejchal, Akira Yoshikawa

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Capability of thermal neutron detection was examined for LiCaAlF 6 (LiCAF) scintillators doped with 3d-transition metal ions. Their radioluminescence spectra were measured with an 241-Am source to simulate 6Li(n, α)3H reaction. The sufficiently intense radioluminescence was observed for the Mn, Co and Cu dopants, while only a weak one was observed for Ti, V, Fe and Ni. A Mn doped LiCAF crystal, which showed the highest radioluminescence intensity, was coupled with a Si avalanche photodiode for the examination of its neutron response. It was confirmed that the average current of the photodiode clearly increased under excitation with 13.5 meV neutron flux.

Original languageEnglish
Pages (from-to)128-131
Number of pages4
JournalRadiation Measurements
Volume55
DOIs
Publication statusPublished - 2013 Aug 1

Keywords

  • Fluoride
  • Neutron
  • Scintillator
  • Single crystal

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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