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Low-cost Individual Digital Dosimeters using Solid State Photomultipliers

Award Information

Agency:
Department of Defense
Branch:
Defense Threat Reduction Agency
Award ID:
74403
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
T051-007-0068
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Radiation Monitoring Devices, Inc.
44 Hunt Street Watertown, MA 02472-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2006
Title: Low-cost Individual Digital Dosimeters using Solid State Photomultipliers
Agency / Branch: DOD / DTRA
Contract: HDTRA1-07-C-0045
Award Amount: $353,250.00
 

Abstract:

U.S. forces working in low-level radiation environments have unsatisfactory choices for monitoring radiation exposure. A solid-state photomultiplier (SSPM) uses an array of silicon based avalanche photodiodes (APD) to collect light and produce a signal proportional to the amount of light collected. The ability to produce arrays of APD's in a CMOS (Complimentary Metal Oxide Semiconductor) environment makes possible the production of miniaturized arrays integrated with the dosimeter electronics in a small silicon chip - the dosimeter on a chip. This technology represents a novel approach for collecting the signal produced from radiation incident on a scintillating material. Additionally, the small size of the integrated system allows large cost reduction after production scale-up. In Phase I, we demonstrated that a scintillating crystal coupled to an SSPM provides a basis for a low-cost, energy responsive, digital dosimeter that is sensitive to low radiation fields. We also demonstrated that Individual pixels operated at 10-15% above breakdown voltage are insensitive to temperature changes that can disable currently used dosimeters.

Principal Investigator:

James Christian
Group Leader
6176686801
jchristian@rmdinc.com

Business Contact:

Gerald Entine
President
6176686801
gentine@rmdinc.com
Small Business Information at Submission:

RADIATION MONITORING DEVICES, INC.
44 Hunt Street Watertown, MA 02472

EIN/Tax ID: 042546395
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No