First performance results of Ce:GAGG scintillation crystals with silicon photomultipliers

Jungyeol Yeom, Seiichi Yamamoto, Stephen E. Derenzo, Virginia Ch Spanoudaki, Kei Kamada, Takanori Endo, Craig S. Levin

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

A new single-crystal Cerium doped Gd3Al2Ga 3O12 (GAGG) scintillation crystal with high luminosity, high density and relatively fast decay time has successfully been grown. We report on the first performance results of the new GAGG scintillation crystal read out with silicon photomultipliers (SiPM) from Hamamatsu (MPPC) and FBK. The best energy resolution (511 keV peak of Ge-68) of 7.9% was attained with GAGG coupled to MPPC and 9.0% with the FBK SiPM after correcting for non-linearity. On the other hand, the best coincidence resolving time (FWHM) of polished 3× 3 × 5mm3 and 3× 3 × 20mm3 crystals were 464±12ps and 577±22 ps for GAGG crystals compared to 179±8 ps and 214±6 ps for LYSO crystals respectively with MPPCs. The rise time of GAGG was measured to be 200 ps (75%) and 6 ns (25%) while the decay time was 140 ns (92%), 500 ns (7.7%) 6000 ns (0.3%).

Original languageEnglish
Article number67
Pages (from-to)988-992
Number of pages5
JournalIEEE Transactions on Nuclear Science
Volume60
Issue number2
DOIs
Publication statusPublished - 2013 Feb 5
Externally publishedYes

Keywords

  • Ce:GAGG
  • gamma-ray spectroscopy
  • PET
  • scintillators
  • silicon photomultipliers
  • SPECT

ASJC Scopus subject areas

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

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    Yeom, J., Yamamoto, S., Derenzo, S. E., Spanoudaki, V. C., Kamada, K., Endo, T., & Levin, C. S. (2013). First performance results of Ce:GAGG scintillation crystals with silicon photomultipliers. IEEE Transactions on Nuclear Science, 60(2), 988-992. [67]. https://doi.org/10.1109/TNS.2012.2233497