Novel APD/BGO Detector Array for Higher Resolution PET

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 22440
Amount: $529,961.00
Phase: Phase II
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
810 Innovation Dr., Knoxville, TN, 37932
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Michael J. Paulus
 (615) 966-7539
Business Contact
Phone: () -
Research Institution
A new detector consisting of a monolithic array of silicon avalanche photodiodes (APDs) coupled to a bismuth germanate (BGO) scintillator array will be fabricated and tested. The prototype detector array will be evaluated for its potential to be incorporated into a positron emission tomography (PET) scanner that will have higher resolution than any commercial scanner presently available. Since APDs can be fabricated using semiconductor processes that are intrinsically less expensive and more reliable than the techniques used to build photomultiplier tubes (PMTs), detector arrays built using APDs may be the only cost-effective means of achieving the higher resolution needed to improve the detection and localization of PET. The architecture of an Application Specific Integrated Circuit (ASIC) will also be developed to process the low- noise, high-speed signals provided by the detector array. During Phase II of this project, an optimized APD array will be developed and the associated ASIC architecture will be implemented. A packaging scheme will be devised to permit the ASIC electronics to be attached directly to the APD/BGO detector module. The final product of Phase II will be a detector/electronics module suitable for incorporation into a higher resolution PET system.

* Information listed above is at the time of submission. *

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