Award Data

High-resolution scintillation crystals and crystal arrays are important components of current and future handheld and arrayed detectors (used for DOD/DTRA applications), and scintillation spectrometers (routinely used in high energy physics research, medical imaging, diffraction, homeland security, nuclear waste clean-up, nuclear treaty verification and safeguards, and geological exploration). Un ...

Until now gamma radiation detection has required large single crystals of sensitive materials that are difficult to produce consistently on an industrial scale. In collaboration with a research group at the University of Texas at Arlington, Agiltron proposes to develop a new class of nanocomposite scintillator materials. The radiation detection characteristics of the synthetic nanoparticles in the ...

SINCE 1975, THE USAF HAS DEVELOPED THROUGH ITS FUZING BRANCH, EGLIN AFB, A NEW CLASS OF PROXIMITY DETECTORS KNOWN AS BASEBAND REFLECTOMETER (BAR) SYSTEMS. IN ADDITION TO HAVING EXCELLENT RESOLUTION (E.G.LESS THAN A FOOT), BAR SYSTEMS HAVE BEEN MADE IMMUNE TO MANY FORMS OF JAMMING AND HAVE BEEN USED AS ALTIMETERS IN TARGET ACTIVATED MUNITIONS(TAM) APPLICATIONS AS WELL AS SENSORS FOR PROXIMITY FUZES ...

A batteryless and wireless sensor for intrusion detection and assessment of threats which requires no battery, external power or wiring is proposed. These types of sensors derive energy from passing vehicles or persons, and indicate their presence, location, speed, etc., via a self-generated short-range radio signal. These sensors require no maintenance, and can be inconspicuously placed in window ...

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A FIBER OPTIC PRESSURE SENSOR BASED ON THE PHOTOELASTIC EFFECT IS DISCUSSED. DUE TO INTRINSIC IMMUNITY TO ELECTROMAGNETIC INTERFERENCE,THE FIBER OPTIC SENSOR OFFERS THE PROMISE OF FUNDAMENTAL IMPROVEMENT RELIABILITY. A POLARIMETRIC SENSING TECHNIQUE MINIMIZES THE EFFECTS OF RADIATION DAMAGE TO FIBERS. THE SENSOR EXPLOITS THE CHANGES IN INDEX OF REFRACTION PRODUCED BY STRESS IN PHOTOELASTIC MATERIA ...

A LASER MICROPROBE FOR ANALYZING LASER PRODUCED MATERIAL BLOWOFF FROM BULK MATERIALS IS TO BE DEVELOPED. MOST WORK ON LASER-TARGET AND LASER-SURFACE INTERACTIONS HAS CONCENTRATED ON THE DEVELOPMENT OF DIAGNOSTICS AND PROBES FOR MEASURING PHYSICAL PROPERTIES OF THE PLASMA PRODUCED FROM PELLETS, THIN FILM TARGETS, AND BULK MATERIALS. LITTLE WORK HAS BEEN DONE TO ANALYZE THE MATERIAL BLOWOFF. WE SHAL ...

INVESTIGATE POTENTIAL OF A NOVEL CONCEPT TO GENERATE SPECIFIC WAVELENGTH REGIONS OF HIGH INTENSITY RADIATION AND/OR PLANAR BLAST WAVES TO PRODUCE, ON CLOSE-BY (TARGET) STRUCTURES AND/OR MATERIALS, THE THERMAL AND/OR SHOCK LOADINGS DELIVERED BY SINGLE PULSE OR REPETITIVE PULSE LASERS. THE CONCEPT, IF SUCCESSFUL, COULD APPLY OVER LARGE (ONE FOOT OR MORE) DIAMETER AREAS ON LARGE, SCALABLE STRUCTURES/ ...

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ADVANCED SURVEILLANCE SYSTEMS WILL BE REQUIRED TO OPERATE IN A TRANS-ATTACK AND POST-ATTACK ENVIRONMENT. THE HIGH ALTITUDE CLUTTER FOR SUCH AN ENVIRONMENT IS NOT ACCURATELY CHARACTERIZED. THE PROPOSED OPTICAL TECHNIQUE PROVIDES A REAL-TIME ADAPTIVE CAPABILITY TO REJECT NUCLEAR CLUTTER AND OPTIMIZE SYSTEM PERFORMANCE. THIS TECHNIQUE UTILIZES A DUAL-STATE OPTICAL SYSTEM WHOSE IMAGING PROPERTIES ALTE ...