DocumentCode :
2558551
Title :
Optimizing timing performance of silicon photomultiplier based scintillation detectors
Author :
Jung-Yeol Yeom ; Vinke, Ruud ; Levin, Craig S.
Author_Institution :
Dept. of Radiol., Stanford Univ., Stanford, CA, USA
fYear :
2012
fDate :
Oct. 27 2012-Nov. 3 2012
Firstpage :
3119
Lastpage :
3121
Abstract :
Precise timing resolution is crucial for applications requiring time-of-flight (ToF) information such as ToF positron emission tomography (PET). Silicon photomulipliers (SiPM) for PET, with their high output capacitance, are known to require custom preamplifiers to maximize timing performance. In this paper, we prove that simple alternative front-end electronics based on a commercial low-noise RF preamplifier can achieve excellent timing resolution. Two radiation detectors with L(Y)SO:Ce scintillators coupled to Hamamatsu SiPMs (MPPC S10362-33-050C) and front-end electronics based on an RF amplifier (MAR-3SM+), have been fabricated. These detectors were used to detect annihilation gamma photons from a Ge-68 source and the output signals were subsequently digitized by a high speed oscilloscope for offline processing. A coincident resolving time (CRT) of 125 ± 2 ps, 147 ± 3 ps and 186 ± 3 ps FWHM with 2 × 2 × 3 mm3 3 × 3 × 5 mm3 and 3 × 3 × 20 mm3 sized L(Y)SO crystals were measured respectively.
Keywords :
biomedical electronics; coincidence techniques; elemental semiconductors; gamma-ray detection; oscilloscopes; photomultipliers; positron emission tomography; preamplifiers; scintillation counters; silicon; silicon radiation detectors; solid scintillation detectors; timing; CRT; Hamamatsu SiPM; L(Y)SO crystals; MAR-3SM+; MPPC S10362-33-050C; PET; ToF; annihilation gamma photons; coincident resolving time; front-end electronics; low-noise RF preamplifier; radiation detectors; scintillation detectors; silicon photomultiplier; time 125 ps; time 147 ps; time 186 ps; time-of-flight positron emission tomography; timing; timing resolution; PET; Silicon photomultipliers; scintillators; timing resolution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
ISSN :
1082-3654
Print_ISBN :
978-1-4673-2028-3
Type :
conf
DOI :
10.1109/NSSMIC.2012.6551711
Filename :
6551711
Link To Document :
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