2-inch size crystal growth of Ce:Gd3Al2Ga 3O12 with various Ce concentration and their scintillation properties

Kei Kamada, Petr Prusa, Martin Nikl, Claudio Piemonte, Alessandro Tarolli, Takayuki Yanagida, Takanori Endo, Kousuke Tsutumi, Akira Yoshikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

2 inch size Ce0.2, 1%, 2.5% and 3% doped Gd3(Ga,Al) 5O12 (GAGG) single crystals were grown by the Cz method. Luminescence and scintillation properties were measured. Light yield change along the growth direction and effects of Ce concentration on scintillation properties in Ce:GAGG were studied. Ce3+ 5d-4f emission within 520-530nm was observed in the Ce:GAGG crystals. The Ce1%:GAGG sample with 5×5×5mm size showed the highest light yield of 62000 photon/MeV. The energy resolution was 4.7%@662keV. With increasing solidification fraction, the LY were decreased. It is proposed that the increase of Ga concentration along the growth direction is the main cause of the decrease of LY. The scintillation decay times were accelerated with increasing Ce concentration in the Ce:GAGG crystals. The scintillation decay times were 92.0ns, 79.1ns and 68.3ns in the Ce1, 2 and 3% GAGG, respectively. Ce0.2% sample showed scintillation decay time of 61.9ns (49%) with slower decay component of 595ns(51%).

Original languageEnglish
Title of host publication2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Pages1698-1701
Number of pages4
DOIs
Publication statusPublished - 2012 Dec 1
Event2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
Duration: 2012 Oct 292012 Nov 3

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
CountryUnited States
CityAnaheim, CA
Period12/10/2912/11/3

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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