Award Data

WE PROPOSE TO DEVELOP A PATTERNED ETCHING TECHNIQUE FOR INFRARED DETECTOR ARRAYS BASED ON PHOTO-INDUCED ETCHING OF HGCDTE THAT IS COMPATIBLE WITH THE ULTRA-HIGH VACUUM ENVIRONMENT OF A MOLECULAR BEAM EPITAXY APPARATUSES. THE PHASE I RESEARCH FOCUSES ON ESTABLISHING THE EFFICACY OF SUITABLE GAS PHASE PRECURSORS FOR THE ETCHING PROCESS. IF THE PHASE I RESEARCH IS SUCCESSFUL, OPTICAL PROJECTION TECHN ...

WE PROPOSE THE INVESTIGATION OF NUCLEATION PROCESSES CAPABLEOF CAUSING THE FREEZING OF SUPERCOOLED WATER DROPLETS IN FRONT OF A MOVING SUBSONIC AIRCRAFT. THE GOAL IS TO DEVELOPA NUCLEATION MECHANISM CAPABLE OF FREEZING THE WATER DROPLETS FAR ENOUGH IN FRONT OF THE MOVING PLANE SO THAT BY THE TIME THE PLANE REACHES THE DROPLETS THEY ARE FROZEN AND BOUNCE FROM THE LEADING EDGES AND THE IMPENAGE, WIT ...

Nighttime operations are very attractive for the U.S. Armed Forces since these conditions generally maximize their advantage over the opposing forces. The deployment of IR countermeasures to protect aircraft from heat-seeking missiles, however, may remove the advantage of nighttime conditions and expose the aircraft to anti-aircraft artillery and small arms fire. Therefore, a need exists for an IR ...

FERROELECTRIC SELF-ASSEMBLED MONOLAYERS ARE BEING CREATED BY CHEMICALLY MODIFYING MONOLAYERS OF ADSORBED N-ALKANETHIOLS IN VACUUM. THE SURFACE POTENTIALS OF THE RESULTING THIN FILMS ARE MEASURED AS A FUNCTION OF TEMPERATURE AND PYROELECTRIC COEFFICIENTS AND FIGURES OF MERIT FOR THE MODIFIED FILMS DERIVED. THESE MONOLAYERS SHOULD BE EXCELLENT MATERIALS FOR ADVANCED ROOM TEMPERATURE PYROELECTRIC D ...

NASA space flight equipment test facilities require a monitoring device for airborne vapors of the rocket fuels hydrazine, monomethylhydrazine (MMH) and unsymmetrical dimethylhydrazine (UDMH). The ideal monitor will be portable, respond rapidly and specifically to hydrazines, and be sensitive at the 10 ppb level or below. Infrared direct absorption techniques have much to offer in terms of simplic ...

ANALYSIS OF THE STABLE ISOTOPES IN ATMOSPHERIC METHANE SAMPLES CAN BE USED TO IDENTIFY LOCAL SOURCES AND TO DEFINE THE GLOBAL BUDGET OF THIS RADIATIVELY IMPORTANT GREENHOUSE GAS. THE PROJECT IS DEVELOPING A PORTABLE AND LESS EXPENSIVE ALTERNATIVE TO ISOTOPE MASS SPECTROMETRY FOR MEASURING (13)CH4 AND CH3D COMPONENTS IN METHANE SAMPLES. THE METHOD IS BASED ON INFRARED ABSORPTION USING A HELIUM NE ...

The objectiwe of this proposal is to develop a versatile, inexpensive, and portable spectroscopic probe to quantify the atmospheric corrosion of metal surfaces on aircraft. Since many metals form insoluble salts as products of corrosion reactions, it should be possible to monitor the extent of metal corrosion by measuring the surface coverage of these products. For example, aluminum, which is a ma ...

A radical, high performance system design concept for UAV missions is proposed. Its characteristics derive directly from propulsion and power generation capabilities inherent in microturbine technology under development at MIT. The proposed vehicle configurations is an oblate spheroid, giving a high package volume with sufficient fuel capacity for hover duration of about one hour. Thrust from m ...

Imaging spectrometers are a powerful new tool for performing hyperspectral measurements for remote sensing, environmental monitoring, and target detection and characterization applications. The major problem associated with hyperspectral measurements now, however, is not the technology for performing the measurements but rather the technology for analyzing and recording the high data rates genera ...

41068 November 20, 1996 Aerodyne Research, Inc. Scintillation phosphors, materials commonly used in particle detectors, emit a photon of light when struck by a subatomic particle, and the light flashes are counted as an indicator of atomic decay. This project will explore the feasibility of monitoring tritium by using an ultra low density (milligrams per ...