Award Data

70454 Intense beams of epithermal neutrons, at sites close to major medical centers, are needed to advance the development of the boron neutron capture modality of cancer therapy. Particle accelerators are the top candidates to meet this need. This project will develop a new rf-focused drift tube linear accelerator structure as an economical source for these neutron beams. The source ...

At the present time, no federated search engine exists that is capable of searching, aggregating, and ranking more than a small fraction of the scientific content produced by the research community at large and by DOE researchers in particular. Although thousands of sources of valuable content exist, a solution has not been developed that ensures that scientific discoveries already made can be ea ...

60774 In order to be commercially competitive, Proton Exchange Membrane (PEM) fuel cells have to meet an acceptable level of performance and cost targets for building applications. Most fuel cell performance losses occur at the cathode oxygen reduction reaction (ORR). Improvements in cathode performance are needed in order to increase fuel cell efficiency and reduce stack cost. This proje ...

60774 In order to be commercially competitive, Proton Exchange Membrane (PEM) fuel cells have to meet an acceptable level of performance and cost targets for building applications. Most fuel cell performance losses occur at the cathode oxygen reduction reaction (ORR). Improvements in cathode performance are needed in order to increase fuel cell efficiency and reduce stack cost. This proje ...

65614 Most photocathode materials, used in detectors for nuclear physics research, have low detection efficiency, requiring detection systems to acquire data for long periods of time to insure that all of the needed information is acquired for a given event. This problem is particularly acute when several photocathode based detectors must act in concert to verify that an event has occurred. Th ...

65852 Cherenkov radiation is commonly studied in nuclear and high energy physics because it yields information about particles that are too fast to be seen by other means. Cherenkov counters use large numbers of photomultiplier tubes, which are expensive, bulky, and have poor spatial resolution. This project will develop low-cost square photomultipliers that are suitable for large, tiled arra ...

65248 The reduction of the operating temperature of solid oxide fuel cells (SOFCs), from 850¿ - 1000¿C to 500¿ - 800¿C, would reduce operating cost and increase life while maintaining specified performance. This project will reduce the SOFC operating temperature by thermal spraying nanostructured yttria doped strontium titanate anodes, electrolytes, and cathodes. In Phase I, new ...

The development of improved, cost-effective Nb3Sn superconductors would have an immediate benefit for high field magnets in High Energy Physics (HEP) applications. This project will develop and demonstrate an economical powder-in-tube (PIT) Nb3Sn process for use in magnets for future HEP accelerator research. In Phase I, a low-cost, intermetallic, phase-pure Cu5Sn4 powder was developed, a PIT Nb ...

High energy physics research is moving toward higher energy collisions, which will require greater energy and luminosity. In turn, more luminosity means larger apertures and bigger magnets, and the development of high field magnets will require higher performance, low-cost Nb3Sn Superconductors. However, the lack of a large-scale extrusion process for Nb3Sn superconducting wire is a major factor ...

Nitride-based, high-brightness, ultraviolet, visible, and white light emitting diodes are candidate devices for replacing incandescent light bulbs and fluorescent light fixtures in general illumination applications, due to their tremendous energy saving potential, long lifetime, and high efficiency. However, the poor crystalline quality of the nitride epilayers, resulting from severely lattice-mi ...