Development of a compton camera based on digital SiPMs and GAGG crystals

K. Shimazoe, T. Orita, H. Takahashi, I. Somlai-Schweiger, F. R. Schneider, S. I. Ziegler, K. Kamada

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

3 Citations (Scopus)

Abstract

In this work the feasibility of digital silicon Photomultipliers (dSiPM) coupled to GAGG (Gadolinium Aluminium Gallium Garnet) scintillator was tested as a Compton camera system for environmental radiation survey applications. The dSiPM is a newly developed photon counting device by Philips which digitizes the photon counts already on the cell level. One sensor tile consists of 4 × 4 dies with 2 × 2 pixels each. Every pixel contains 3200 cells. Two arrays of 8 × 8 GAGG crystals (crystal size is 3.2 × 3.87 × 8 mm3) are individually coupled to the pixel matrix of two dSiPMs tiles. The scatter detector and the absorbing detector are stacked at 5 cm distance to build the Compton camera system. Data was acquired using a coincidence time window of 3 ns. For the two detectors in coincidence, the measured energy resolution is 9.7 % FWHM@511 keV and coincidence time resolution is ∼ 740 ps FWHM. The first image of a 22Na point source located at 25 cm from the Compton Camera was successfully reconstructed using filtered back projection (FBP).

Original languageEnglish
Title of host publication2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479905348
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 - Seoul, Korea, Republic of
Duration: 2013 Oct 272013 Nov 2

Publication series

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

Other

Other2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
CountryKorea, Republic of
CitySeoul
Period13/10/2713/11/2

ASJC Scopus subject areas

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

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    Shimazoe, K., Orita, T., Takahashi, H., Somlai-Schweiger, I., Schneider, F. R., Ziegler, S. I., & Kamada, K. (2013). Development of a compton camera based on digital SiPMs and GAGG crystals. In 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 [6829616] (IEEE Nuclear Science Symposium Conference Record). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2013.6829616