Crystal growth and scintillation properties of 2-inch-diameter Pr: Lu 3Al5O12 (Pr:LuAG) single crystal

Kei Kamada, Kousuke Tsutsumi, Yoshiyuki Usuki, Hiraku Ogino, Takayuki Yanagida, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

In this work we tried to grow 2-inch-diameter and high quality Pr:LuAG single crystals by the Czochralski (Cz) method. To grow the large diameter Pr:LuAG single crystal, we have optimized growth conditions and the furnace design. As a result, we have succeeded in the growth of 2-inch-diameter Pr:LuAG single crystal with a length of 110 mm. To determine light yield and energy resolution the energy spectra were collected under 662 keV γ-ray excitation (137Cs source) and detection by a photomultiplier (Hamamatsu H7826). The light yield was around three times higher than that of BGO and almost homogeneous with increasing solidification fraction up to 0.32. The energy resolution was around 8%. Furthermore, scintillation decay time was around 23 ns and almost homogeneous all over the crystal.

Original languageEnglish
Article number4545139
Pages (from-to)1488-1491
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume55
Issue number3
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • 5d-4f Luminescence
  • Crystal growth
  • Gamma-ray detectors
  • Garnets
  • Pr

ASJC Scopus subject areas

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

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