Award Data

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. These accelerators currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime power. This project will review available transistors, analyze high-efficiency power-amplifier techniques, and experimentally evaluate ca ...

Accelerators used for nuclear-physics research require megawatts of radio-frequency energy. These accelerators currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime power. This project will review available transistors, analyze high-efficiency power-amplifier techniques, and experimentally evaluate ca ...

Accelerators used for nuclear physics research require megawatts of radio-frequency energy. These accelerators currently employ vacuum-tube power amplifiers or conventional solid-state amplifiers that are inefficient and therefore consume a great deal of prime power. This project will involve a review of available transistors, an analysis of high-efficiency power-amplifier techniques, and an exp ...

SemiSouth Laboratories, Inc., a leading developer and manufacturer of silicon carbide (SiC) power semiconductor devices, and OptiSwitch Technology Corporation, a leading developer and manufacturer of light activated semiconductor products, propose the development of a hybrid switch using intermediate optoelectronic conversion. An optical T/R module will be used to trigger a SiC vertical junction f ...

The world is increasingly concerned about global warming from the greenhouse effect, and the voluminous CO2 emissions from human activities are a significant contributor to this problem. Carbon sequestration is the concept of isolating and removing CO2 gases from large point sources and then holding them in secure storage. To be viable, any CO2 sequestration option must be safe, predictable, rel ...

Hybrid Electric Vehicles (HEVs) and plug-in Hybrid Vehicles (PHEVs) require advanced technology capacitors, which must have low cost and the ability to operate at 150oC. However, current 150oC film capacitor solutions are expensive and have lower energy density compared to materials that operate at lower temperatures. Polypropylene Film Capacitors represent a potentially cost effective solution ...

A high-voltage, high-current, SiC power switch is required by the existing utility infrastructure and its need to interconnect renewable energy sources to the grid (such as wind and solar photovoltaic). Renewable energy sources require new types of equipment with challenging issues not usually borne by the utility industry, including severe constraints on size, weight, and cost. This project wil ...

Historically, remediation efforts at DOE contaminated sites have relied on numerical models to integrate laboratory and field characterization data, predict the fate and transport behavior of contaminant plumes, design remediation protocols to mitigate contaminant migration, and analyze data from field remediation results. Of particular concern is the effect of subsurface heterogeneities and thei ...

Standoff detectors are required to detect IEDs. These detectectors are needed to save the lives of American soldiers. QuantaSpec has developed patent pending methods for long-range, sensitive, and selective standoff detection of explosives. These methods have already demonstrated sensitive remote detection of explosive vapors under previous efforts. QuantaSpec's multidisciplinary team will dem ...