Coplanar CdZnTe p-i-n, Gamma-Ray Detectors for Nuclear Spectroscopy

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$745,571.00
Award Year:
1997
Program:
SBIR
Phase:
Phase II
Contract:
DE-FG02-96ER82282
Agency Tracking Number:
34595
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Spire Corp.
One Patriots Park, Bedford, MA, 01730
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Rengarajan Sudharsana
Staff Scientist
(617) 275-6000
Business Contact:
Mr. Richard S. Gregorio
Vice President
(617) 275-6000
Research Institution:
n/a
Abstract
40439 November 18, 1996 Spire Corporation Miniature detectors are used to monitor stored nuclear materials such as plutonium and uranium. This project will develop a new device design to improve the energy resolution of cadmium-zinc-telluride (CdZnTe) radiation detectors. The proposed design is to form a coplanar p-i-n grid on one face and a continuous ohmic contact on the other face of CdZnTe. The coplanar grid offers improved energy resolution due to efficient collection of electrons, and the p-i-n structure design offers low leakage current and allows operation at high electric bias voltage. Phase I will demonstrate the feasibility of the concept by designing, fabricating, and testing a coplanar p-i-n CdZnTe detector. Phase II will optimize the detector structure and build prototype, portable systems. Anticipated Results/Potential Commercial Applications as described by the awardee: Application for these detectors include portable detector systems for monitoring uranium and plutonium in nuclear facilities, as well as gamma spectroscopy and X-ray astronomy .

* information listed above is at the time of submission.

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