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AEGIS: A Pixel-array Readout IC for Gamma-ray Imaging

Award Information
Agency: Department of Health and Human Services
Branch: National Institutes of Health
Contract: 1R41CA114895-01
Agency Tracking Number: CA114895
Amount: $189,620.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2005
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
Augustine Engineering 2115 Park Dale Ln
Encinitas, CA 92024
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 (520) 626-7682
Business Contact
Phone: (760) 753-8781
Research Institution
TUCSON, AZ 85722
United States

 Nonprofit College or University

DESCRIPTION (provided by applicant): CdZnTe arrays are promising detectors for improving nuclear medicine imaging, but existing CdZnTe cameras have limited spatial resolution and small numbers of pixels (space bandwidth product = SpBW). We show that major performance improvements will require high SpBW (>10A5) and small pixels (high resolution). The best approach to obtaining high SpBW detectors is to make many hybrid detector rays composed of a pixellated slab of CdZnTe indium bump bonded to a readout circuit, but a new highperformance readout circuit is required. The University of Arizona Center for Gamma-Ray Imaging (CGRI) and Augustine Engineering have actively collaborated in developing such hybrid detector arrays for use in biomedical gamma ray imaging. We propose to design and build a 64 x 64 readout (AEGIS) in Phase II, which will support the development of high performance clinical semi-conductor cameras. AEGIS will be an event-driven readout with a shaper-amplifier unit cell, active leakage current compensation and 310 um pitch for excellent spatial resolution. In Phase I we will design, fabricate and test an 8 x 8 prototype AEGIS and then make 8x8 hybrid CdZnTe detectors to verify feasibility.

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

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