TY - GEN
T1 - Development of a compton camera based on digital SiPMs and GAGG crystals
AU - Shimazoe, K.
AU - Orita, T.
AU - Takahashi, H.
AU - Somlai-Schweiger, I.
AU - Schneider, F. R.
AU - Ziegler, S. I.
AU - Kamada, K.
PY - 2013
Y1 - 2013
N2 - 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).
AB - 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).
UR - http://www.scopus.com/inward/record.url?scp=84904162768&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84904162768&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2013.6829616
DO - 10.1109/NSSMIC.2013.6829616
M3 - Conference contribution
AN - SCOPUS:84904162768
SN - 9781479905348
T3 - IEEE Nuclear Science Symposium Conference Record
BT - 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
Y2 - 27 October 2013 through 2 November 2013
ER -