NDLI: Novel electro-optically coupled MR-compatible PET detectors

Content Provider	IEEE Xplore Digital Library
Author	Olcott, Peter D. Peng, Hao Levin, Craig S.
Copyright Year	2008
Description	Author affiliation: Department of Radiology, Stanford University, 300 Pasteur Drive, Always Building Room M001, CA 94305, USA (Peng, Hao; Levin, Craig S.) \|\| Bio-Engineering Department at Stanford University, 300 Pasteur Drive, Always Building Room M001, CA 94305, USA (Olcott, Peter D.)
Abstract	A new magnetic resonance(MR) compatible PET detector design is being developed that uses electro-optical coupling to bring the amplitude and arrival time information of high speed scintillation pulses out of an MR system. The electro-optical coupling consists of a magnetically insensitive photodetector connected to a non-magnetic vertical cavity surface emitting laser (VCSEL) diode. This scheme essentially acts as an optical wire. When compared to signal transmission over standard co-axial cables, electro-optical coupling will have little influence on a MR system because the optical fibers are not conductive. A single 3 mm × 3 mm × 20 mm LYSO crystal coupled to a SENSL SPMArray 3035G16 was placed in coincidence with a 4 mm × 4 mm × 4 mm LSO crystal coupled to a R9779-20 Hamamatsu PMT with and without non-magnetic VCSEL laser coupling. No change was measured in energy resolution of 15.6 +/− 0.4 % with electro-optical coupling versus coax-coupling energy resolution 15.5 +/− 0.4%. Also, no change in coincidence time resolution was measured between electro-optical coupling with 1.30 +/− 0.01 ns FWHM versus coax at 1.32 +/− 0.02 ns FWHM. High speed analog modulation using the VCSEL laser was successful and paves the way for a MR compatible PET block detector that has a significantly reduced electronic footprint than a standard MR compatible PET detector. This may provide the way to create a large axial FOV whole body clinical PET system that will have very little influence on a whole body clinical MR system performance.
Starting Page	4640
Ending Page	4645
File Size	10715172
Page Count	6
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4774444
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Positron emission tomography Vertical cavity surface emitting lasers Optical coupling Magnetic resonance Lasers and electrooptics Surface emitting lasers Energy resolution Whole-body PET Solid scintillation detectors Fiber lasers SSPM PET MRI electro-optical VCSEL
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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