High Quantum Efficiency Fast Detectors for Readout of Scintillators for Gamma Ray Detection

Award Information
Agency: Department of Homeland Security
Branch: N/A
Contract: HSHQDC-07-C-00044
Agency Tracking Number: 0621070
Amount: $150,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: H-SB06.2-007
Solicitation Number: N/A
Small Business Information
12725 SW Millikan Way, Suite 230, Beaverton, OR, 97005-1782
DUNS: 124348652
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George Williams
 georgew@voxtel-inc.com
Business Contact
 George Williams
Title: President
Email: georgew@voxtel-inc.com
Research Institution
N/A
Abstract
High quantum efficiency (QE), fast (<20 nsec.) silicon APD detector will be optimized for the blue (e.g., 340-400 nm) optical radiation emitted by scintillators under gamma irradiation. The APDs have been designed to be highly manufacturable, with low dark count rates, high uniformity, nanosecond-scale temporal response. In Phase I, through a set of orthogonal designed experiments, the silicon APD array will be optimized for both the performance specifications required of gamma cameras as well as for high manufacturing yields. Candidate devices will be coupled with existing 2.5 GHz, low noise (20 e- rms) amplifiers, and the characteristics of the device, with and without coupling to LaBr3, will be measured. In Phase II, we will perform full reliability testing on the devices, and a fully functional high-performance gamma camera will be manufactured and its performance verified.

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

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