Award Data

A NOVEL NON-CONTACT NON-INVASIVE INFRARED (IR) SENSOR IS PROPOSED FOR IN-SITU DIAGNOSTICS IN CVD REACTORS. DURING CVD PROCESSES, THE SUBSTRATES WILL BE HEATED. THE IR SENSOR TAKES THE ADVANTAGE OF THE HEATED SUBSTRATE AS THE SOURCES OF IR RADIATION. BY SENSING AND ANALYZING THE IR RADIATION FROM A SUBSTRATE, THE SUBSTRATE SURFACE CAN BE PROBED. MOREOVER, LOW TEMPERATURE SILICON EPITAXY HAS BEEN CH ...

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INNOVATIVE TECHNIQUES ARE PROPOSED FOR INVESTIGATION IN A PHASE I EFFORT TO DETERMINE PASSIVE RF SURVEILLANCE AND TARGETING SENSORS AND ASSOCAITED METHODOLOGY FOR PERFORMING RAPID AND ACCURAGE MEASUREMENTS OF RANGE/LOCATION OF THREAT RF EMITTERS. THE ESSENTIAL PHYSICAL CONSTRAINTS TO BE OBSERVED ARE SENSOR COMPATIBILITY WITH, AND PORTABILITY OF THE ASSOCIATED RANGE DETERMINATION/PROCESSING EQUIPME ...

A SYSTEM DESIGN IS PROPOSED FOR A LOW COST MAN-PORTABLE SATELLITE DIRECT DOWNLINK TERMINAL TO RECEIVE DIGITAL TRANSMISSIONS FROM TIROS-N, GOES, METEOSAT AND DMSP WEATHER SATELLITES. KEY AREAS OF ENABLING TECHNOLOGY ARE IDENTIFIED AND DISCUSSED. IN PHASE I, ASDC WILL DEVELOP AND BREADBOARD SUFFICIENT HARDWARE AND SOFTWARE TO DEMONSTRATE A WORKING PROOF OF CONCEPT SYSTEM. SPECIFICATIONS AND HARDWARE ...

THE METHYL RADICAL IS A KEY SPECIES IN THE FORMATION OF CVD DIAMOND, FOR WHICH THERE IS A NEED FOR AN ON-LINE MONITOR USABLE IN INDUSTRIAL PRODUCTION OF CVD DIAMOND. WE PROPOSE TO MONITORMETHYL RADICAL CONCENTRATIONS USING THE ABSORPTION OF THE INFRARED OUTPUT OF A NEUTRAL XENON LASER AT 3217.75 WAVENUMBERS. THE PHASE I EXPERIMENTS WILL MEASURE THIS ABSORPTION IN AN RF METHANE PLASMA, IN WHICH MET ...

HALON 1301 (CF3BR) IS CURRENTLY IN WIDE SPREAD USE ON NAVAL VESSELSAS AN EFFECTIVE AND NON-TOXIC ACTIVE AGENT IN FIRE SUPPRESSION SYSTEMS. UNFORTUNATELY, FUTURE MANUFACTURE AND USE OF CF3BR MAY BE SEVERELY RESTRICTED DUE TO ITS ROLE AS A POTENT AGENT IN STRATOSPHERIC OZONE DEPLETION CHEMISTRY. ALTERNATIVE FIRE SUPPRESSION CHEMICALS NEED TOBE IDENTIFIED AND ASSESSED TO REPLACE HALON 1301 IN NAVAL S ...

THIS STUDY WILL DEVELOP A SYSTEM CONFIGURATION FOR A REAL-TIME WEATHER SATELLITE TERMINAL THAT IS LOW-COST AND MAN-PORTABLE. LOW-COST IMPLIES COMMERCIAL OFF THE SHELF. COSTS CAN BE MINIMIZED BY MAXIMIZING THE USE OF PRODUCTS AND/OR COMPONENTS THAT ARE ALREADY COMMERCIALLY AVAILABLE. LIFE CYCLE COSTS CAN BE MINIMIZED BY UTILIZING AN OPEN ARCHITECTURE WITH INDUSTRY STANDARD INTERFACES. MAN-PORTABLE ...

esign of the IR/RF payloads.

THE OBJECTIVE OF THE PHASE I RESEARCH EFFORT WILL BE TO DEMONSTRATE THE FEASIBILITY OF USING GAAS CRYSTAL RADIUS ESTIMATES, OBTAINED BY APPLYING NEURAL NETWORK TECHNIQUES TO PROCESS VIDEO IMAGERY, FOR REAL TIME CONTROL OF THE LIQUID-ENCAPSULATED CZOCHRALSKI (LEC) PROCESS. A CRYSTAL RADIUS ESTIMATE IS ESSENTIAL FOR IMPROVED PROCESS CONTROL BECAUSE THE CURRENTLY UTILIZED MEASUREMENT HAS AN ANOMALOUS ...

WE PROPOSE TO DEVELOP AN ANTI-REFLECTION (AR) COATING FOR DIAMOND FILMS OPTIMIZED TO ENHANCE THE TRANSMISSION IN THE 8 TO 12 MICRON REGION OF THE SPECTRUM. THE METAL-OXIDE MATERIALS TO BE EVALUATED HAVE GOOD OPTICAL TRANSMISSION IN THIS SPECTRAL REGION AND REFRACTIVE INDICES NEAR THE OPTIMUM VALUE OF 1.55 FOR A DIAMOND AR COATING. SINCE A SECONDARY PURPOSE OF THE COATING IS TO PROTECT THE DIAMOND ...