A NEW TWO-DIMENSIONAL POSITION ENCODER FOR POSITRON EMISSION TOMOGRAPHY (PET)-

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 2537
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1986
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
215 Center Park Drive, Knoxville, TN, 37922
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Ronald Nutt
 Principal Investigator
 (615) 966-7539
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A NEW TWO-DIMENSIONAL POSITION ENCODER IS PLANNED FOR PET WITH POSITION RESOLUTION BETTER THAN 3 MM. THE NEW DETECTOR INCLUDES 32 BISMUTH GERMANATE (BGO) SCINTIL- LATION CRYSTALS MOUNTED ON A LIGHT GUIDE. THE LIGHT GUIDE PROVIDES A SQUARE ROOT SEPARATION OF THE LIGHT DISTRIBUTED FROM EACH CRYSTAL. THE LIGHT FROM THE LIGHT GUIDE IS DETECTED BY TWO DUAL HAMAMATSU PHOTO- MULTIPLIER TUBES (R1548) THAT ARE ONE INCH SQUARE. THE SIGNAL FROM EACH PHOTOMULTIPLIER IS PROCESSED THROUGH THE ENCODING ELECTRONICS TO PRODUCE A DIGITAL SIGNAL INDICATING A SIGNAL POSITION (1 OUT OF 32) FOR EACH 511 KEV GAMMA RAY IMPINGING ON THE DETECTOR. THE DIMENSIONS OF EACH OF THE 32 CRYSTALS ARE NOMINALLY 3 X 12 X 30 MM. IT IS ANTICIPATED THAT THE DETECTOR, INCLUDING CRYSTALS, LIGHT GUIDE, PHOTOMULTIPLIER, AND ELECTRONICS FOR THE 32-CRYSTAL ARRAY WILL COST $2,500 COMPARED TO THE ACTUAL COST OF $15,000 FOR 32 INDIVIDUAL CRYSTALS, PHOTOMULTIPLIERS, AND SETS OF ELECTRONICS.

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

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