Growth of Y2O3, Sc2O3 and Lu2O3 crystals by the micro-pulling-down method and their optical and scintillation characteristics

Akihiro Fukabori, Valery Chani, Kei Kamada, Takayuki Yanagida, Yuui Yokota, Federico Moretti, Noriaki Kawaguchi, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

The growth of Y2O3, Sc2O3, and Lu2O3 single crystals using the micro-pulling-down method is reported. Crystallinity, optical transmittance, and scintillation characteristics including emission spectra, pulse height spectra, and decay kinetics under α-ray excitation of the grown crystals were studied. The light yields of Y2O3, Sc2O3, and Lu2O3 crystals were estimated from the pulse height spectra excited by 241Am 5.5 MeV α-rays, in about 920±92 ph/5.5 MeVα, 370±37 ph/5.5 MeVα, and 150±15 ph/5.5 MeVα, respectively. The scintillation decay times of Y2O 3, Sc2O3, and Lu2O3 crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, α-ray imaging was performed using Y2O3 crystal.

Original languageEnglish
Pages (from-to)823-827
Number of pages5
JournalJournal of Crystal Growth
Volume318
Issue number1
DOIs
Publication statusPublished - 2011 Mar 1

Keywords

  • A1. Radiation
  • A2. Growth from melt
  • A3. Single crystal growth
  • B1. Oxides
  • B2. Scintillator materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Growth of Y<sub>2</sub>O<sub>3</sub>, Sc<sub>2</sub>O<sub>3</sub> and Lu<sub>2</sub>O<sub>3</sub> crystals by the micro-pulling-down method and their optical and scintillation characteristics'. Together they form a unique fingerprint.

Cite this