Award Data

This project will extend the Capability Acquisition Graph (CAG) model to a form that can be easily analyzed with formal methods in order to develop countermeasures for cyber attacks arising from within an organization. The extension will be based on an efficient translation of the problem to Boolean Satisfiability (SAT), in order to exploit the both the speed and capacity of SAT solvers. Extensio ...

For more than four decades, space-based systems have been used to support the detection of activities associated with the proliferation of weapons of mass destruction. This project will develop efficient and scalable tool to evaluate the robustness of radiation-hardened circuits and to automatically generate recommendations for radiation hardening in these space systems. The tool will be based o ...

The 300-1000 cm-1 spectral region, commonly referred to as the fingerprint region, is rich in spectral signatures; also, blackbody emission at room temperature peaks in this region. Thus, high-resolution infrared (IR) detectors sensitive in this region are seriously needed for the remote sensing of weapons of mass destruction (WMD), especially nuclear weapons. However, existing IR detectors do n ...

The performance of the target is essential for the successful operation of a RIB (Radioactive Ion Beam) facility. The target must have fast release to allow short-lived isotopes to be available for experiments, and it has to be able to withstand the power that will be deposited in the bulk of the target material. The availability of thin plates of refractory actinides, with high density and high ...

Ocean Thermal Energy Conversion (OTEC) has the potential of supplying large quantities of renewable electrical power to U.S. island communities in tropical waters. Large OTEC plants can be economical if they are (1) offshore floating plants that can be mass produced and (2) capable of providing at least 100MW in capacity. Today, no electrical transmission cables can deliver this power to shore u ...

Solar concentrator systems will require solar cells with improved efficiency and reduced cost in order to be competitive. New approaches are needed to build solar cells for optimum performance in high concentration applications. This project will demonstrate multifunction solar cells with backside contacts, which can significantly improve cell efficiencies when used in high-concentration applica ...

A superconducting RF (SRF) power coupler capable of handling 500 kW CW RF power is required for present and future storage rings and linacs. There are over 35 coupler designs for SRF cavities ranging in frequency from 325 to 1500 MHz. Coupler windows vary from cylinders to cones to disks and RF power couplers will always be limited by the ability of ceramic windows to withstand the stresses due to ...

Superconducting YBCO coated conductors, originally developed for high temperature operation, carry significant current even in the presence of extremely high magnetic fields, when they operate at low temperature. The successful design of the magnets needed for high energy physics applications using such high-field YBCO depends critically on engineering property issues, including the dependence of ...

The detection of activities related to the proliferation of weapons of mass destruction requires a capability of the automatic tracking of moving vehicles from an overhead platform. Current approaches rely on spatial-temporal characteristics coupled with moving object maps and tracking techniques. If the vehicle can be continually tracked, these techniques will work well. However, due to gaps i ...

Many DOE user facilities, such as synchrotron radiation light sources and free electron lasers, require accelerating structures that can support electric fields of 10-100 MV/m, especially at the start of the accelerator chain where ceramic insulators are used for very high gradient DC guns. These insulators are difficult to manufacture, require long commissioning times, and have poor reliability. ...