Award Data

A FEASIBILITY STUDY OF IMPROVING DECOY PENETRATION AID (PENAID) PERFORMANCE BY SUPPLYING MEANS TO 1) ALLOW FOR DUAL CENTER OF GRAVITY (CG) LOCATION, THEREBY ENABLING INDEPENDENT FULFILLMENT OF IMPULSE BALANCING AND REENTRY STABILITY REQUIREMENTS; AND/OR 2) COUNTERACT DECOY CONING BY SENSING ITS PRESENCE, AND CORRECTING THE ANGULAR MOMENTUM OF THE DECOY TO ELIMINATE CONING.

THIS PROGRAM WILL DEVELOP FIELD INSTRUMENTATION SUITABLE FOR USE IN AN UNDERGROUND (UGT) OR ABOVEGROUND (AGT) RADIATION TEST ENVIRONMENT, FOR THE MEASUREMENT OF ELECTRICAL PROPERTIES OF MATERIALS AS THEY RECOVER FROM IRRADIATION. THE EFFORT WILL CONSIST OF SAMPLE HOLDER AND INSTRUMENTATION DESIGN, RESPONSE ANALYSIS, AND THE FABRICATION OF A LABORATORY TEST SETUP TO SHOW TECHNIQUE FEASIBILITY.

THIS ACTIVITY WILL INVESTIGATE THE USE OF PVDF FILM FOR USE AS A LOW Z STRAIN GAGE. THE PVDF MATERIAL IS AN ORDER OF MAGNITUDE MORE SENSITIVE THAN PZT AS A PIEZOELECTRIC MATERIAL AND HAS AN ATOMIC NUMBER MUCH LOWER (LOW Z) THAN PRESENT RESISTIVE STRAIN GAGE MATERIALS. THEREFORE, PVDF AS A STRAIN GAGE WILL BE CAPABLE OF MEASURING MUCH LOWER LEVELS OF STRAIN THAN PRESENT GAGING TECHNIQUES, AND WILL ...

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NUCLEAR EXPLOSION INDUCED LIGHTNING (NEIL) REPRESENTS A POTENTIALLY SEVERE THREAT TO MILITARY SYSTEMS REQUIRED TO SURVIVE AND FUNCTION AFTER EXPOSURE IN THE SOURCE REGION OF A NUCLEAR EXPLOSION. WHEREAS THERE EXISTS SOME UNCERTAINTY ABOUT THE NATURE AND MAGNITUDE OF THE THREAT, ITS EXISTENCE IS CONCLUSIVELY DOCUMENTED IN THE FILM RECORD OF ATMOSPHERIC NUCLEAR TESTS IN THE PACIFIC DURING THE 1950'S ...

ADVANCES IN ELECTRONIC DEVICE TECHNOLOGY HAVE LED TO INCREASED PACKING DENSITIES WHILE POWER CONSUMPTION HAS DROPPED. IN GENERAL, THIS TREND IS BENEFICIAL TO AVIONICS AND SPACE APPLICATIONS EXCEPT THAT A NEW FAILURE MODE HAS ACCOMPANIED THIS MINIATURIZATION. IN HIGH ENERGY PARTICLE ENVIROMENTS, SUCH AS ENCOUNTERED IN SPACE, MICROELECTRONIC DEVICES HAVE BEEN SHOWN TO BE SUSCEPTIBLE TO TRANSIENT OR ...

In this proposed Phase II program we will build on the successful Phase I program where we for the first time implemented engineered epitaxial layers based on nanostructure technology that were used to harden commercial silicon devices against radiation by minimizing collected photocurrents (electron-hole pairs) via recombination centers where we demonstrated that improved radiation hardness could ...

EXTRINSIC PHOTOCONDUCTIVITY SEMICONDUCTOR SWITCHES (PCSS) BASED ON CVD DIAMOND-FILM (DF) HAS BEEN DEVELOPED. DIAMOND MATERIAL POSSESSES SEVERAL ADVANTAGES SUCH AS HIGH THERMAL CONDUCTIVITY AND HIGH BREAKDOWN VOLTAGES. THE PCSS BASED ON CVD DIAMOND CAN BE SUPERIOR THAN ITS COUNTERPARTS (GAAS OR SI) BY EXPLOITING THESE ADVANTAGES. CONVENTIONAL PCSS'S BASED ON GAAS SUFFER FROM PROBLEMS SUCH AS THERMA ...

Vexcel proposes a system for extracting terrain elevation from large stereo SAR databases using a priori elevation map data. This system will accelerate, automate, and improve the accuracy and robustness of radargrammetricnprocessing for data acquired from wide spectrum of existing and planned SAR platforms.