Evaluations of pure and ytterbium doped transparent ceramic complex perovskite scintillators

Takayuki Yanagida, Yutaka Fujimoto, Yuui Yokota, Akira Yoshikawa, Satoshi Kuretake, Yuji Kintaka, Nobuhiko Tanaka, Keisuke Kageyama, Valery Chani

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Optical and scintillation properties of complex perovskite transparent ceramic scintillators of pure and Yb3+ doped Ba(ZrMgTa)O3 and (LaSr)(AlTa)O3 ceramics are reported. The materials were produced by Murata Manufacturing. Their optical properties including transmittance and photoluminescence spectra were evaluated. The ceramics demonstrated high transparency (50-70%) in visible wavelength region. Additionally, strong emission peaks were observed at 470 nm in Ba(ZrMgTa)O3 under 284 nm excitation and at 500 nm in (LaSr)(AlTa)O3 under 324 nm excitation. The photoluminescence decay times of Ba(ZrMgTa)O3 and (LaSr)(AlTa)O3 samples were 14 and 16 μs, respectively. Judging from these optical properties, Yb3+ emission was not observed in these materials. In radio luminescence spectra, all specimens exhibited the same emission peaks with relatively higher emission intensity. 241Am 5.5 MeV α-ray induced pulse height spectra of the samples were also measured, and (LaSr)(AlTa)O3 demonstrated ∼500 ph/5.5 MeV α with 10 μs shaping time constant.

Original languageEnglish
Pages (from-to)414-418
Number of pages5
JournalOptical Materials
Volume34
Issue number2
DOIs
Publication statusPublished - 2011 Dec

Keywords

  • Perovskite
  • Scintillation detector
  • Scintillation yield
  • Transparent ceramic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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