A NEW SEMICONDUCTOR PHOTOSENSOR FOR SCINTILLATION SPECTROSCOPY

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$500,000.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
11667
Agency Tracking Number:
11667
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
44 Hunt Street, Watertown, MA, 02172
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
SCINTILLATION SPECTROMETERS ARE CURRENTLY THE MOST WIDELY USED DEVICES FOR THE DETECTION AND SPECTROMETRY OF ENERGETIC PHOTONS (X-RAYS AND GAMMA RAYS) AT ROOM TEMPERATURE. THEY ARE VERY WIDELY USED IN NUCLEAR AND HIGH ENERGY PHYSICS RESEARCH, MEDICAL IMAGING AND INDUSTRIAL GAUGING APPLICATIONS. RECENTLY, SILICON SEMICONDUCTOR OPTICAL DETECTORS HAVE BEEN USED TO DETECT THE LIGHT PRODUCED BY THE SCINTILLATOR. THE PERFORMANCE OF SCINTILLATION SPECTROMETERS COULD BE IMPROVED SUBSTANTIALLY IF THE OPTICAL DETECTORS USED TO DETECT THE SCINTILLATION LIGHT PULSES COULD BE IMPROVED. TOADDRESS THE LIMITATIONS OF PRESENT SCINTILLATION SPECTROMETERS, WE PROPOSE DEVELOPING A NEW PHOTOCONDUCTIVE DETECTOR, HGBRXI2-X, MERCURY BROMOIODIDE. A DETECTOR MADE OF THIS MATERIAL SHOULD RIVAL OR SURPASS THE PERFORMANCE OF ALL OTHER SEMICONDUCTOR OPTICAL DETECTORS. IN THIS EFFORT, CRYSTALS OF HGBRXI2-X WILL BE GROWN AND CHARACTERIZED. THESE CRYSTAL WILL BE USED TO FABRICATE OPTICAL SENSORS TO EXAMINE THE POTENTIAL PERFORMANCE OF THIS NEW MATERIAL. THUS, THE GOAL OF THIS PROGRAM WILL BE TO DEMONSTRATE THE FEASIBILITY OF USING HGBRXI2-X PHOTODETECTORS IN SCINTILLATION SPECTROMETER SYSTEMS.

* information listed above is at the time of submission.

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