Award Data

Certain lanthanide halides have significantly higher light output than NaI:Tl, the comparison standard for scintillators, plus other important properties, including fast decay times and excellent proportionality. Unfortunately, lanthanide halides grown by traditional melt processes have high production costs and limited availability. Crystals are usually limited to about 5 cm x 5 cm, right cylinde ...

It is proposed to develop a novel process for growth of high quality CZT crystals for nuclear detection applications. Currently the THM process is the technology of choice for production of high quality CZT crystals. This process, however, suffers from extremely low growth rates. The development effort proposed here will seek to increase the crystal growth rate by 5-10 times the current levels ...

Three nuclides are especially useful in detecting thermalized neutrons: helium-3, lithium-6 , and boron-10. Since current demand will deplete reserves of helium-3 in roughly two years, there is a large desire to develop detectors that have the capacity to replace helium-3 tubes. In this proposal we spell out our plan to adapt Neotron''s already developed fission neutron detector into a high effic ...

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 ...

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 ...

CREATION OF BURIED INSULATING LAYERS IN SILICON WAFERS BY HIGH DOSE OXYGEN IMPLANTATION (SIMOX) HAS GAINED SIGNIFICANT ATTENTION IN THE LAST TWO YEARS. THE SIMOX TECHNOLOGY IS POSITIONED TO BE A PRIME CONTENDER IN THE SILICON-ON-INSULATOR (SOI) ARENA MAINLY BECAUSE OF THE INHERENT RELIABILITY/REPRODUCIBILITY OF THE ION IMPLANTATION TECHNOLOGY. ONE OBSTACLE TO BROADER USE OF THE SIMOX MATERIAL IS T ...

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N.A.T. DEVELOPMENT HAS DEVELOPED A THREE PART APPROACH TO ACHIEVE EMP SHIELDING IN NEW AND USED EQUIPMENT THAT PROVIDES SUPERIOR ECONOMICS, AS WELL AS IMPROVED PHYSICAL PROPERTIES. THE GOALS AND OBJECTIVES OF THE PROJECT FOLLOW. 1) OPTIMIZATION OF THE RHEOLOGICAL/APPLICATION PROPERTIES OF 'STATE OF THE SCIENCE' CONDUCTIVE COATINGS. THESE SYSTEMS COMBINE THE EMP CONDUCTIVE EFFICIENCIES OF SILVER AN ...

THIS PROJECT WILL DEVELOP A MANUAL FOR PROGRAM MANAGERS TO IMPROVE IMPLEMENTATION OF DOD INSTRUCTION 4245.4, "ACQUISITION OF NUCLEAR SURVIVABLE SYSTEMS." THIS INSTRUCTION PROVIDES GENERAL MANAGEMENT AND DOCUMENTATION GUIDANCE FOR NUCLEAR SURVIVABILITY AND HARDNESS ACTICITIES. THE MANUAL WILL PROVIDE PROGRAM MANAGERS WITH INFORMATION ON THE PROGRAMMATIC ASPECTS OF DOD 4245.4, MAKING REFERENCE TO SO ...

A COMBINED THEORETIACL AND EXPERIMENTAL EFFORT IS PROPOSED FOR DEVELOPING A SUITABLE EPM MATERIAL WHICH PROVIDES SUBSTANTIAL PROTECTION AGAINST ANTICIPATED LASER THREATS. A NEW MATERIAL CONCEPT IS PROPOSED WHICH PROVIDES FOR DISSIPATION OF INCIDENT LASER ENERGY TO REFLECTION, ABLATION AND ANISOTROPIC THERMAL CONDUCTION. THIS MATERIAL IS EXPECTED TO INCREASE THE LASER INTERACTION TIME REQUIRED FOR ...