Characterization of Silicon Photomultipliers for PET Imaging

The Silicon Photomultiplier (SiPM) is a novel photodetector being developed for high energy physics applications. SiPM is attractive for PET imaging because it is compact; provides high gain at low voltage; is insensitive to magnetic fields; has a fast timing response; and is potentially inexpensive...

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Bibliographic Details
Main Authors: Qingguo Xie, Chien-Min Kao, Byrum, K., Drake, G., Vaniachine, A., Wagner, R.G., Rykalin, V., Chin-Tu Chen
Format: Conference Proceeding
Language:English
Subjects:
Astrophysics
Extraterrestrial measurements
Low voltage
Magnetic fields
Photodetectors
Photomultipliers
Physics
Positron emission tomography
Silicon
Timing
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Summary:The Silicon Photomultiplier (SiPM) is a novel photodetector being developed for high energy physics applications. SiPM is attractive for PET imaging because it is compact; provides high gain at low voltage; is insensitive to magnetic fields; has a fast timing response; and is potentially inexpensive and CMOS-technology compatible. Researchers have characterized SiPM performance mostly in areas relevant to high-energy physics and astrophysics applications, with some findings demonstrating the potential usefulness of SiPM in positron emission tomography (PET) imaging. Using our photodetector characterization test-stand equipped with a 20 GSps sample rate and 6 GHz bandwidth oscilloscope, we have measured the gains in the range of 1-3 times 10 5 room temperature for SiPM samples obtained from different producers. We have measured the rising times and their standard deviations. Based on the measured dark-count rates at room temperature, we have also estimated the achievable energy resolution of SiPM in PET imaging when used with LSO and BGO scintillators.
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.2006.356059