Growth, optical properties, and scintillation light yield of CaF 2.Ce crystals with different ce concentration

Takayuki Yanagida, Kyoung Jin Kim, Kei Kamada, Yui Yokota, Shuji Maeo, Akira Yoshikawa, Noriaki Kawaguchi, Kentaro Fukuda, Nobuhiko Sarukura, Valery Chani

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Present work describes the first detailed γ-ray light yield of Ce3+ perturbed emission in CaF2 host. (1-, 3-, 5-, 10-, and 20-mol %-) Ce3+-doped single crystalline CaF2 scintillator crystals were grown by the micro-pulling-down method. Their transmittances were measured to be approximately 80% at UV to visible wavelengths. All the crystals exhibited emission peaks at approximately 330 nm, which were identified as the Ce3+ perturbed emission, when they were irradiated by 1 GBq 137Cs. The photoluminescence decay kinetics was measured to be about 40 ns for all the crystals. Scintillation light yield in unit of photons/MeV (ph/MeV) was measured, and the 5% sample showed the highest light yield of around 900 ph/MeV with 2 ms shaping time.

Original languageEnglish
JournalJapanese journal of applied physics
Volume49
Issue number3 PART 1
DOIs
Publication statusPublished - 2010 Jul 1

ASJC Scopus subject areas

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

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