Award Data

INNOVATIVE APPROACHES ARE DESCRIBED IN THIS PROPOSAL FOR SUPPRESSING FREQUENCY MODULATION ON A SINUSOIDAL CARRIER. PARTICULAR EMPHASIS IS DIRECTED TO THE SUPPRESSION OF IDENTIFIABLE COMPONENTS OF A COMPOSITE MODULATION PROCESS FOR THE PURPOSE OF RETAINING, FOR SEPARATE MEASUREMENT, ANY FORM OF RANGE-RATE DOPPLER SHIFT/MODULATION PRESENT. THE PROPOSED EFFORT WILL CONSIST OF AN ANALYTICAL STUDY FOR ...

THE WASTE HEAT EXCHANGER IS OFTEN THE LARGEST SINGLE COMPONENT IN DIESEL-EXHAUST POWERED AIR CONDITIONING SYSTEMS, AND ON ACCOUNT OF ITS HIGH MATERIAL CONTENT, IS OFTEN THE HEAVIEST AND MOST COSTLY AS WELL. THE NEED EXISTS FOR A HEAT EXCHANGER DESIGN AND FABRICATION TECHNIQUE WHICH IS COMPACT AND LIGHTWEIGHT, RESISTS FOULING FROM EXHAUST GASES, IS EASILY CLEANED, USES INEXPENSIVE MATERIALS, AND IS ...

A KEY REQUIREMENT FOR THE SUCCESS OF THE NEW, TACTICAL RADIATION DOSIMETRY INSTRUMENTATION NOW BEING DEVELOPED BY THE ARMY IS TO HAVE AN ENERGY COMPENSATED, SOLID STATE GAMMA RAY SENSOR. ATTEMPS TO USE TRADITIONAL FILTERING TECHNIQUES TO ACHIEVE A FLAT ENERGY RESPONSE HAVE NOT BEEN SUCCESSFUL AND A NEW APPROACH IS REQUIRED. WE PROPOSE TO UTILIZE RECENTLY AVAILABLE, INEXPENSIVE DIGITAL MICROCHIPS T ...

THE RECENT DISCOVERY OF SUPERCONDUCTIVITY AT HIGH TEMPERATURE (90 DEG K) IN COPPER CONTAINING CERAMICS HAS RESULTED IN A RAPID ACCELERATION IN SUPERCONDUCTOR RESEARCH. PRODUCTION TECHNIQUES ARE BEING EXAMINED FOR THE FABRICATION OF BULK AND THIN FILM SAMPLES. THE CURRENTLY USED PROCESSES FOR MAKING THIN FILMS OF SUPERCONDUCTORS ARE PRIMARILY LIMITED TO EXPENSIVE, SMALL SCALE, LABORATORY TECHNIQUES ...

THE WHITE SANDS MISSILE RANGE GAMMA RAY FACILITY IS USED TO QUALIFY MILITARY EQUIPMENT FOR RADIATION HARDNESS. ISOTOPIC SOURCES OF 60 CO AND 137 CS ARE USED TO PRODUCE INTENSE GAMMA RAY FIELDS THAT ALLOW TESTING OF ELECTRONIC SYSTEMS IN ENVIRONMENTS THAT APPROXIMATE ANTICIPATED NUCLEAR BATTLEFIELD CONDITIONS. RECENTLY IT HAS BECOME CLEAR THAT DOSE ENHANCEMENT EFFECTS PRODUCED BY A LOW ENERGY COMPO ...

Gamma-ray spectrometers consisting of inorganic scintillators coupled to optical detectors such as photomultiplier tubes (PMTs) are an important element of the systems that are used to monitor and prevent the spread of special nuclear materials. Two very important requirements for the scintillation detectors used as gamma-ray spectrometers in homeland security monitoring include high sensitivity a ...

Radioactive materials are used in commercially important analytical instruments because of the ability of ionizing radiation to excite characteristic x-ray fluorescence lines. Radiation sources are often the most practical method for portable instruments, such as analyzers for lead paint in homes. There are many other applications, including the rapidly growing area of RoHS manufacturing. This eff ...

Proliferation of nuclear weapons is a serious threat in the world today. One way to determine the presence of nuclear weapons is to detect neutrons emitted by special nuclear material(SNM) such as highly enriched uranium and weapons grade plutonium. The purpose of this project is to develop improved solid state neutron detectors from CVD diamond for homeland security applications. Phase I work wil ...

The use and applications of radiological sources, for power, medical, and defense applications, continuously increases with time. Illicit nuclear materials represent a threat for the safety of the American citizens and the detection and interdiction of a nuclear weapon is a national problem that has not been yet solved. This represents an enormous challenge to current detection methods and monitor ...

BASED UPON EARLIER EXPERIMENTAL WORK, IT WAS DISCOVERED THAT ULTRASONIC RADIATION OF THE PROPER FREQUENCY WOULD PRECIPITATE SMOKE AND AEROSOLS WITHIN THE RADIATION PATTERN. THE PURPOSE OF THIS EFFORT IS TO EXPERIMENTALLY PROVE THE FEASIBILITY OF USING THE CONCEPT TO CLEAR SMOKE AND AEROSOLS FROM A BATTLEFIELD. TWO SPECIFIC APPLICATIONS WILL BE STUDIED, 1) TO CREATE A SMALL AREA OF CLEAR AIR TO TAR ...