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A CO(2) laser system has been developed at the Lawrence Livermore Laboratory to provide hot start-up plasmas for magnetic mirror fusion experiments. It can irradiate a frozen ammonia pellet with a laser power density in excess of 10(13) W/cm(2) in a 50-nsec pulse. The system uses commercially available lasers. Optical components were fabricated both by direct machining and by standard techniques. The technologies used are directly applicable to reactor-scale systems.

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UCRL-LR-134107The Scrounge-atron AbstractThe Scrounge-atron is a concept that could provide a demonstration accelerator for proton radiography. As discussed here, the Scrounge-atron would be capable of providing a 20 GeV beam of ten pulses, 10 11 protons each, spaced 250 ns apart. This beam could be delivered once every minute to a single-axis radiographic station centered at the BEEF facility of the Nevada Test Site. These parameters would be sufficient to demonstrate, in five years, the capabilities of a proton-based Advanced Hydrotest Facility, and could return valuable information to the stockpile program, information that could not be obtained in any other way. The Scrounge-atron could be built in two to three years for $50-100 million. To meet this schedule and cost, the Scrounge-atron would rely heavily on the availability of components from the decommissioned Fermilab Main Ring.