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

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

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).

本文言語English
ホスト出版物のタイトル2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷版)9781479905348
DOI
出版ステータスPublished - 2013 1 1
イベント2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 - Seoul, Korea, Republic of
継続期間: 2013 10 272013 11 2

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
ISSN(印刷版)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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