Award Data

THE EMERGING IMPORTANCE OF NUCLEAR-WEAPON AND DIRECTED ENERGY WEAPON (DEW) EFFECTS TESTING IN THE SOFT X-RAY REGIME HAS HIGHLIGHTED THE NEED FOR A ROBUST, ACCURATE AND RELIABLE SOFT X-RAY SPECTROMETER THAT WILL MEASURE FLUENCE INCIDENT ON UGT TEST-ARTICLES. THE NEW LAYERED SYNTHETIC MICROSTRUCTURE (LSM) X-RAY INTERFERENCE MIRROR TECHNOLOGY IS PROPOSED AS THE BASIS FOR A SPECTROMETER RESPONSIVE TO ...

THE PROPOSED FIBLOC SENSOR PROVIDES AN ECONOMIC MEANS TO PROTECT, LITERALLY, MILES OF A PREFERRED PERIMETER REGION AGAINST UNAUTHORIZED INTRUSIONS. THE OPTICAL FIBERS EMPLOYED INT HE FIBLOC SENSOR PROPAGATE CW OR PULSED INFRARED LIGHT SIGNALS WHOSE TRANSMISSION AND/OR REFLECTION SENSITIVITY IS AFFECTED BY MECHANICAL PRESSURE SUCH AS WOULD BE PRODUCED BY THE DISTENSION OF SURFACED MOUNTED FIBERS AL ...

DEVELOPMENT OF AN INNOVATIVE AND ECONOMICAL EXPERIMENTAL METHOD IS PROPOSED WHICH CAN PROVIDE THE BASIC BEHAVIOR DATA NECESSARY TO MEET THE DNA OBJECTIVE OF PROVIDING ADEQUATE ANALYSIS, DESIGN AND ASSESSMENT METHODS FOR MINIMALLY HARDENED TUNNELS. THIS DEVELOPMENT IS ACCOMPANIED BY ANALYSIS CAPABLE OF REPRESENTING THE COMPLEX INELASTIC MATERIAL BEHAVIOR OF THE ROCK MASS AND OF REPRESENTING SIMPLE ...

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HIGH ALTITUDE NUCLEAR THREATS GENERALLY REQUIRE THE USE OF OVERLAYS/UNDERLAYS TO ACHIEVE THE NUCLEAR SURVIVABILITY REQUIREMENTS OF ADVANCED REENTRY VEHICLES (RVS). MATERIALS AND FABRICATION PROCESSES EXIST THAT WITH SOME MINOR VARIATIONS SHOULD PRODUCE A HEATSHIELD MATERIAL THAT CAN EITHER ELIMINATE THE NEED FOR, OR REDUCE THE REQUIREMENTS OF, OVERLAYS/UNDERLAYS. THE PROPOSED MATERIAL, RELATIVE TO ...

THE OBJECTIVE OF THIS RESEARCH IS TO ACHIEVE GREATER SENSITIVITY, RUGGEDNESS AND EASE OF USE OF ALPHA MEASURING DEVICES IN POTENTIALLY HARSH FIELD ENVIRONMENTS BY APPLYING THIN FILM DIAMOND TO THE INSTRUMENT DETECTOR FACE. TO ACHIEVE THIS OBJECTIVE WE WILL ATTEMPT TO COAT SILVER ACTIVATED ZINC SULPHIDE WITH DIAMOND USING CHEMICAL VAPOR DEPOSITION TECHNIQUES DEVELOPED BY THE COMPANY AND APPLY AN AP ...

THE EXTENSION OF A PHYSICAL MODELING TECHNIQUE UTILIZING ROCK-SIMULANTS AND SIMULATED BLAST LOADING TO MODEL PROPAGATION OF DILATIONAL WAVES THROUGH FLUID-SATURATED FRACTURED ROCK MASSESS WILL BE EVALUATED. ROCK-SIMULANTS, WITH NEGLIGIBLE MATRIX PERMEABILITY, WILL BE DEVELOPED FOR SPECIMEN PREPARATION. A STEP-BY-STEP CASTING PROCEDURE WILL BE EMPLOYED TO SIMULATE JOINTING AND BEDDING PLANES. ATTEM ...

THE DISCIPLINE OF EXTERNAL-INITIATOR PRA ANALYSIS IS RELA- TIVELY LESS MATURE AND LESS RELIABLE THAN THE CORRESPONDING INTERNAL-INITIATORS PRA ANALYSIS. THESE RELATIVE WEAKNESSESHAVE MADE MANY DECISION-MAKERS, IN BOTH INDUSTRY AND THE NRCRELUCTANT TO USE EXTERNAL-INITIATOR PRA RESULTS. THE EXTER-NAL-INITIATOR ANALYSES HAVE BEEN CONSIDERED TOO UNCERTAIN, OR TOO CONSERVATIVE, OR SUPPORTED BY TOO LIT ...

THE PHASE I EXPERIMENTAL EFFORT WILL DEMONSTRATE THE FEASIBILITY OF A FIELD WORTHY GROUND MOTION SENSOR TO REPLACE PIEZO-ELECTRIC ACCELEROMETERS FOR CONVENTIONAL EXPLOSIVES AND NUCLEAR TESTING. THE OUTPUT SIGNALS OF PIEZO-ELECTRIC ACCELEROMETERS MUST BE INTEGRATED TWICE TO DETERMINE GROUND MOTIONS. THIS PROCESS REDUCES SYSTEM ACCURACY AND MEASUREMENT BANDWIDTH. ADDITIONALLY, AS PIEZO-ELECTRIC SENS ...

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