DocumentCode :
3298062
Title :
Design of high resolution PET detectors using avalanche photodiodes
Author :
Burr, Kent C. ; Ivan, Adrian ; Wang, Gin-Chung ; LeBlanc, James W. ; McClish, Mickel A. ; Farrell, Richard ; Shah, Kanai S.
Author_Institution :
Gen. Electr. Res., Niskayuna, NY
Volume :
5
fYear :
2005
fDate :
23-29 Oct. 2005
Firstpage :
2794
Lastpage :
2798
Abstract :
We describe new high-resolution depth-of-interaction (DOI) PET detector designs based on avalanche photodiodes (APDs). With the development of APDs which utilize thin drift regions to speed response time, these detectors promise improved timing performance relative to previously reported APD-based DOI detectors. The new designs also offer improved decoding of smaller crystals at room temperature through the use of a combination of position-sensitive APDs and pixellated APDs. The number of read-out channels for these designs is kept much smaller than the number of scintillator crystals by ganging together APD outputs in an encoding pattern which still allows for the correct identification of the crystal-of-interaction
Keywords :
avalanche photodiodes; drift chambers; positron emission tomography; solid scintillation detectors; crystal-of-interaction identification; depth-of-interaction PET detector; drift regions; pixellated avalanche photodiodes; position-sensitive avalanche photodiodes; scintillator crystals; Avalanche photodiodes; Chromium; Crystals; Decoding; Detectors; Energy resolution; Positron emission tomography; Signal resolution; Temperature; Timing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nuclear Science Symposium Conference Record, 2005 IEEE
Conference_Location :
Fajardo
ISSN :
1095-7863
Print_ISBN :
0-7803-9221-3
Type :
conf
DOI :
10.1109/NSSMIC.2005.1596915
Filename :
1596915
Link To Document :
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