Award Data

A higher current negative ion source is desired for the Spallation Neutron Source. Such a source would also be useful for any accelerator facility with an ion storage ring. Busek is using a different type of plasma source which has the objective of creating a larger population of excited hydrogen molecules which can be used to produce negative ions. Busek constructed a plasma source and examined ...

Some DOE modulators have been under development for a decade, but do not yet meet the specifications for voltage, droop, or pulse width. A fundamental design limitation is that the inverters switch the full current 30 times during each pulse, requiring large and expensive switching transistors. A new architecture was invented, consisting of an SCR-controlled power supply, a solid-state modulator ...

The DOE is looking for a solid-state pulser suitable for driving a 50 , 2 meter long stripline TEM deflector with 10-15 kV, 10 nanosecond flattop pulses at 100 kHz PRF, with 10-3stability (repeatability), and sub-100-picosecond jitter. This is a critical requirement for particle accelerator labs which need to deflect relativistic charged particle packets emerging from the accelerator at 1 MHz rate ...

Synchrotron radiation is a powerful tool for measuring structural properties of materials. Important applications of higher energy synchrotron X-rays include measurement of strain and material evolution during processing, studies of composite materials and studies of layered systems. Detector requirements for these applications include large area, high sensitivity, wide dynamic range, high spatial ...

Aerosol particles have important impacts on visibility, acid deposition, climate, and human health, although large uncertainties remain in quantifying their chemical composition and atmospheric transformations. A large fraction of the anthropogenic aerosol is generated from energy-related activities, and organic compounds are known to constitute a significant fraction of ambient aerosol mass. Or ...

Nuclear physics research has a need for position sensitive charge particle and gamma ray tracking devices. The micromegas detector could achieve the best performance and lowest cost for the large structures required. These detectors will be exposed to intense radiation, operate in high magnetic fields, and must be affordable. Agiltron is developing a unique micro- fabrication process to produc ...

This DOE SBIR/STTR program will result in the commercialization of a low-cost anostructured composite thermoelectric device. Such devices represent the next generation solution for an increasingly strained energy market by converting existing waste heat into electrical power. More waste heat is generated by the combination of industry and automobiles than the total contribution of all renewable en ...

Future magnets for Fusion Energy Systems require superconducting cables with improved high critical current carrying capacity at high magnetic fields, 20 Kelvin operation, low AC losses and lower cost. A new method of fabricating a high current cable with 2G HTS tapes has been developed that will improve the engineering current density achievable. Commercial Applications and Other Benefits: Fut ...

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SOLID STATE LASER SOURCES CURRENTLY AVAILABLE FOR MEASURING GREENHOUSE GASES, COMBUSTION PRODUCTS, AND OTHER SPECIES ACROSS THE 3 TO 30 MICRON REGION ARE LEAD SALT DIODE LASERS WHICH OPERATE AT LIQUID NITROGEN TEMPERATURES. PRACTICAL PROBLEMS INCLUDE THE NEED FOR CRYOGENIC COOLING, ERRATIC TUNING BEHAVIOR, AND LIMITED AVAILABILITY OF SINGLE MODE DEVICES IN THIS REGION. THE OPPORTUNITY EXISTS TO ...