Award Data

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 ...

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Marietta X-Ray, Inc (MXRI) and its subcontractor Rapiscan Laboratories, Inc. propose to develop a mobile non-intrusive prototype that can demonstrate the capability of inspecting a complete general-aviation aircraft for concealed contraband. Our solution utilizes an existing vehicle and manipulator coupled with an x-ray inspection system. The x-ray system is based on backscatter technology, which ...

In the event of a terrorist attack, the ability to measure the extent and location of the attack and rapidly notify first responders will be critical to saving lives. If the widespread use of cell phones could be harnessed with an ability to detect chemical threats and immediately notify authorities of the scope and location of the attack, public safety would be significantly enhanced. Synkera p ...

In the event of a terrorist attack, the ability to measure the extent and location of the attack and rapidly notify first responders will be critical to saving lives. If the widespread use of cell phones could be harnessed with an ability to detect chemical threats and immediately notify authorities of the scope and location of the attack, public safety would be significantly enhanced. Synkera pro ...

At the completion of the research and development effort a Li-foil multi-wire proportional counter (MWPC) neutron detector with more than 625-cm2 of active area will be included in a portable radiation detection system. The system is expected to outperform the standards set by the ANSI N42.53 standards, and gamma-ray rejection ratio (GRR) of 1.0x10-8 or better. A gamma-ray spectrometer for isotope ...

SIGNIFICANT CONSERVATISM IN MODERN SEISMIC PRA DERIVES FROM SIMPLIFICATIONS IN GROUND-MOTION CHARACTERIZATION AT THE INTERFACE OF SEISMIC HAZARD AND FRAGILITY METHODOLOGIES. THIS CONSERVATISM ARISES BECAUSE A SINGLE COMPOSITE-MAGNITUDE, BROAD-BAND, GROUND-MOTION SPECTRUM IS USED TO DERIVE FRAGILITY FUNCTIONS, WHEREAS THE MAJORITY OF MOTIONS CONTRIBUTING TO SITE HAZARD HAVE (LESS-DAMAGING) NARROW-B ...

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 ...

The United States Coast Guard`s homeland security mission includes providing security for 361 ports and 95,000 miles of US Coastline. This coastline is susceptible to both criminal and terrorist attack. Waterside facilities and critical infrastructure are especially vulnerable to attack from on or under water. Alaska Native Technologies, LLC (ANT) propose using broadband active sonar technology co ...

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