Award Data

Detecting electromagnetic (EM) signals generated by electrical and electronic processes and equipment in the presence of large amounts of clutter and unknown obstacles or infrastructure along the channel presents a unique set of challenges, with the most critical being: Lack of signal design, Unknown channel conditions, and Potential active attempts to hide or obfuscate the signals. Recently, ther ...

A novel pressurized gasfilled multiRFcavity beam profile monitor has been studied that is simple and robust in highradiation environments. Charged particles passing through each RFcavity in the monitor produce intensitydependent ionized plasma, which changes the gas permittivity. Standard RF techniques to measure the change in quality factor (Q) and frequency (f) as a function of time are then use ...

There is widespread concern regarding carbon emissions from fossil fuels, resulting in a drive towards improved efficiency in reactor (boiler) performance while reducing carbon emissions. Coal will continue to be a primary source of energy for economic growth for the foreseeable future, thus there is a push to reduce net carbon emissions of coal operated plants by replacing part of the coal with b ...

Redox flow batteries are a promising technology for electrical energy storage for renewable energy sources; however traditional redox flow batteries are limited in their use due to non-uniform pressure drops and mass transfer limitations, as well as high manufacturing costs related to the felt material costs for the electrode and component alignment challenges during manufacturing.General Statemen ...

Solid State Drives (SSDs) are emerging as attractive alternatives to traditional HDDs due to there reduced power consumption and potential for increased performance. SSDs have the potential to improve the performance of both Checkpoint Restart (CPR) and the Metadata Server (MDS) for high performance File Systems, e.g., Lustre. However, the write performance of SSDs is relatively poor (compared to ...

The novel high energy, high average power, diode-pumped solid state lasers to be developed by this program will enable the realization of a new generation of high average power table-top x-ray laser sources with applications in ultrafast metrology of materials, studies of molecular structure and catalysis, ultra-high resolution microscopy, and other nanotechnology applications.

Higher operating temperature for the gas turbine engine is needed for enhanced efficiency, lower emission and increased performance goal. The current state-of-the-art thermal barrier coatings (TBCs) are not adequate to provide the needed protection for the metallic components of the turbine engine operating at higher TBC surface temperature (>1300

Energy consumption is quickly becoming one of the primary bottlenecks of compute clusters and supercomputers. The DOE is a primary developer and consumer of these power hungry supercomputers, however smaller cluster machines are also widely used through other government agencies and industries. Yet, there are few power profiling tools that allow application developers transparent insight into the ...

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The laser plasma accelerator (LPA) is a very promising technology for generating gamma rays for the detection of contraband bulk nuclear materials, but is currently limited by the rate at which the beam can be pulsed. Erosion of the capillary plasma channel is the main limiting factor and can be mitigated through the use of artificial diamond to construct the channel. Computational modeling and ...