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MATERIAL COMPATABILITY BETWEEN LIQUID METAL CURRENT COLLECTOR ALLOYS AND SOLID METALS ON MATERIAL COLLECTOR SURFACES WILL BE INVESTIGATED. LOW MELTING FUSIBLE TYPE ALLOYS WITH CAPABILITY OF OPERATING AT 200 DEG F OR BELOW WILL BE FEATURED WITH SOME CONSIDERATION OF SUITABLE MATERIALS IN THE 0-500 DEG F RANGE. A THOROUGH LITERATURE SEARCH FOR PERTINENT PHYSICAL, MECHANICAL, AND SURFACE INTERACTIVE ...

WE WISH TO EXPLORE A NEW METHOD FOR PRODUCING VERY HARD DIAMOND-LIKE COATINGS ON OPTICAL COMPONENTS. TO DO THIS, WE WILL USE AN APPARATUS THAT ACCELERATES CARBON IONS FROM A CARBON ARCH OPERATING IN VACUUM. THIS METHOD HAS SEVERAL ADVANTAGES: LARGE QUANTITIES OF IONS CAN BE PRODUCED, SO COATINGS CAN BE MADE RAPIDLY. THE IONS' QUANTITY AND ENERGY, AND THUS THE PROPERTIES OF THE COATINGS RESULTING F ...

GAASP SOLAR CELLS PLACED ON TOP OF CONVENTIONAL SILICON SOLAR CELL ARRAYS CAN INCREASE THE ENERGY CONVERSION EFFICIENCY OF THE SYSTEM AS MUCH AS 100%. ASTROPOWER DIVISION OF ASTROSYSTEMS, INC. PROPOSES TO DEVELOP A HIGH BAND GAP TOP SOLAR CELL FOR ATTACHMENT TO CONVENTIONALS ILICON SOLAR CELLS. TRANSPARENT GAP SUBSTRATES WILL BE USED WITH EPITAXIALLY GROWN LAYERS OF GAASPH HAVING A BAND GAP OF 1.7 ...

HEAT EXCHANGE MATRIX THE FUNCTION OF A HEAT EXCHANGER IS DEPENDENT UPON THE AREA OF EXPOSURE TO THE FLUIDS IN PROCESS. FINS ARE COMMONLY USED TO INCREASE EXTERNAL SURFACE AREAS. TO EXTEND THE INNER SURFACE OF A TUBE OR VESSEL IS MORE DIFFICULT AND THERE IS CURRENTLY NO COST EFFECTIVE METHOD TO DO SO. THIS REDEARCH IS TO DEVELOP THE USE OF A MATRIX COMPOSED OF SMALL, HOLLOW, METAL CYLINDERS, BRAZED ...

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THE PNEUMATICALLY DE-ICED STRUCTURAL ICE DETECTOR IS DESIGNED TO BE BATTERY OPERATED AND CONSUME VERY LITTLE POWER. THE ICE DETECTOR PROBE AND MOUNTING ARRANGEMENT ARE BOTH PNEUMATICALLY DE-ICED USING GAS OPERATED RUBBER DE-ICER BOOTS. THE PRESSURE IS SUPPLIED BY A COMPRESSED DRY VITROGEN GAS TANK. THE ICE DETECTOR WILL MEASURE THE WEIGHT OF ICE FORMING ON THE PROBE; IT CAN ALSO MEASURE THE LOADS ...

DEVELOPMENT IS PROPOSED OF A SMALL, SELF-CONTAINED POWER UNIT CAPABLE OF OPERATING UNATTENDED FOR LONG PERIODS WITH GREAT RELIABILITY. THE UNIT IS INTENDED FOR INCORPORATED AS THE STORAGE BATTERY TRICKLE CHARGER IN A DATA GATHERING AND COMMUNICATIONS SYSTEM FOR THE ARCTIC AND OTHER REMOTE ISOLATED AREAS. THE ENERGY SOURCES ANTICIPATED FOR THE POWERUNIT INCLUDE NUCLEAR (RADIOISOTOPE) AND CHEMICAL ( ...

WE PROPOSE TO DEVELOP, CONSTRUCT, AND TEST A PROTOTYPE X-RAY SPECTROGRAPH FOR THE 0.1 - 1 KEV ENERGY RANGE WITH TIME RESOLUTION OF ABOUT ONE NANOSECOND. THE PROPOSED INSTRUMENT WILL PROVIDE FLEXIBILITY IN CHOICE OF OPERATING WAVELENGTH, WILL BE SUBSTANTIALLY MORE SENSITIVE THAN X-RAY FILMS, AND WILL BE LESS EXPENSIVE THAN CONVENTIONAL X-RAY STREAK CAMERAS. THE TIME-RESOLVING, ULTRASOFT X-RAY SPECT ...

WE PROPOSE TO INVESTIGATE THE FEASIBILITY OF A NEW CHEMICAL LASER BASED ON THE (RED) 0.76 MICROMETERS O2 1SIGMA YIELDS O2 3SIGMA TRANSITION. THE O2 1SIGMA STATE IS PRODUCED BY AN ENERGY-POOLING REACTION (O2 1DELTA + O2 1DELTA YIELDS O2 1SIGMA + 3SIGMA(1)). THE O2 1DELTA ELECTRONIC EXCITED STATE IS PRODUCED BY PRIOR CHEMICAL REACTION. THE SINGLET OXYGEN (SOX) LASER IS AN ALTERNATIVE TO THE CHEMICAL ...

UTILIZING TECHNIQUES DEVELOPED EXTENSIVELY IN THE NATIONAL LASER FUSION PROGRAM, WE PROPOSE TO MEASURE THE TIME DEPENDENT CHANGE IN CRYSTAL X-RAY REFLECTIVITY BROUGHT ABOUT WHEN A CRYSTAL IS HEATED TO THE MELTING POINT ON A PICOSECOND TIME SCALE. THIS EXPERIMENT WILL OBTAIN DATA ON RADIATION-LATTICE DYNAMICS ON A TIME SCALE 2-3 ORDERS OF MAGNITUDE FASTER THAN PREVIOUSLY OBTAINED WITH X-RAY TECHNIQ ...