Single crystal growth, optical properties and neutron response of Ce 3+ doped LiCaAlFg

Akira Yoshikawa, Takayuki Yanagida, Yuui Yokota, Noriaki Kawaguchi, Sumito Ishizu, Kentaro Fukuda, Toshihisa Suyama, Kyoung Jin Kim, Jan Pejchal, Martin Nikl, Kenichi Watanabe, Masayasu Miyake, Mamoru Baba, Kei Kamada

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

Ce2%: 6LiCaAlF6 (6LiCAF) single crystal (nominal composition) with 2 mm in diameter and 50 mm in length was grown by the micro-pulling-down method. Emission from the perturbed Ce3+ centers was observed in an a-ray excited radioluminescence. The neutron response was compared with Li-glass (GS20, Saint-Gobain) using. The scintillation decay time of Ce2% : 6LiCAF is 38 nsec, which is twice as short as that of GS20. Using Hamamatsu photomultiplier H7416 the photoelectron yield about a half of that of GS20 has been measured for the single crystal. Considering the light yield of GS20 (6000 phot/neutron) and the spectral correction due to the different emission peak position in both materials, the light yield of single crystal is estimated about 4200 phot/neutron.

Original languageEnglish
Article number5341453
Pages (from-to)3796-3799
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume56
Issue number6
DOIs
Publication statusPublished - Dec 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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