NDLI: A prototype Anger-type detector for PET using LSO and large-area APDs

Content Provider	IEEE Xplore Digital Library
Author	Krishnamoorthy, S. Vaska, P. Stoll, S. Purschke, M. Pratte, J.-F. Woody, C.L. Schlyer, D.J. O'Connor, P.
Copyright Year	2005
Description	Author affiliation: Dept. of Biomed. Eng., Stony Brook Univ., NY (Krishnamoorthy, S.)
Abstract	Spatial resolution in positron emission tomography has steadily improved over the years, but remains substantially worse than in other imaging modalities, currently at ~2 mm for the most popular commercial tomographs. This is a serious limitation particularly for imaging mice, which have great potential in preclinical PET research because of their compatibility with genetic manipulation. A novel gamma-ray detector design which can achieve high resolution and sensitivity and also facilitates depth of interaction measurement has been developed. It consists of a slab of LSO and arrays of large-area avalanche photodiodes (APDs) on both sides which are used in a light sharing (Anger-type) scheme. A fully instrumented prototype detector has been constructed comprising a 10 mm thick LSO crystal and an array of 7 square APDs (each 11 mmtimes11 mm in area) optically coupled to each side. Preliminary measurements carried with a collimated source mounted on a computer controlled X-Y translational stage demonstrate a resolution of ~2.5 mm FWHM between the center of two APDs. Optimization of electronics noise factors is critical to improving detector performance
Starting Page	2845
Ending Page	2848
File Size	636759
Page Count	4
File Format	PDF
ISBN	0780392213
ISSN	10957863
DOI	10.1109/NSSMIC.2005.1596925
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-23
Publisher Place	Puerto Rico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Prototypes Detectors Positron emission tomography Optical arrays High-resolution imaging Optical imaging Optical noise Spatial resolution Mice Genetics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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