LARGE AREA NUCLEAR PARTICLE DETECTORS USING ET MATERIALS TM

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 5093
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Quantex Corp.
2 Research Court, Rockville, MD, 20850
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
 CHARLES Y. WRIGLEY
Title: INVESTIGATOR
Phone: () -
Research Institution
N/A
Abstract
LARGE AREA (UNLIMITED SIZE) TWO-DIMENSIONAL POSITION-SENSITIVE (ABOUT 0.1MM) SOLID-STATE NUCLEAR PARTICLE DETECTORS ARE PROPOSED FOR FEASIBILITY INVESTIGATION USING QUANTEX-DEVELOPED ELECTRON-TRAPPING (ET)MATERIALS. IMPINGEMENT OF HIGH-ENERGY (COMPARED TO 2EV) NUCLEAR PARTICLES OR IONIZING PHOTONS PRODUCES BOTH LOCAL VISIBLE-WAVELENGTH SCINTILLATION AND TRAPPING OF EXCITED ELECTRONS IN THE ET MATERIAL FILM APPLIED TO A SUBSTRATE. SUBSEQUENT ILLUMINATION BY NEAR-INFRARED OF 0.8 TO 1.2 MICRON WAVELENGTH RELEASES THE TRAPPED ELECTRONS AND PRODUCES VISIBLE-WAVELENGTH LIGHT FROM THE PARTICLE IMPINGEMENT SPOTS. INTEGRATING INTERVALS MAY BE CHOSEN AT WILL (UP TO YEARS) AND APPLYING NEAR-INFRARED AT HIGHER IRRADIANCE LEVELS CAN ERASE THE PATTERN. READOUT CAN BE ACCOMPLISHED WITH COMMON SOLID-STATE VIDEO CAMERAS AND RECORDED DURING NEAR-INFRARED ILLUMINATION, OR WITH A VISIBLE-RANGE PHOTOMULTIPLIER AND A COMMON NEAR-INFRARED SEMICONDUCTOR DIODE LASER SCANNING THE SURFACE FOR EXTREMELY LOW IMPINGEMENT RATES.

* information listed above is at the time of submission.

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