Bonn 2000 – wissenschaftliches Programm
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P: Plasmaphysik
P 18: Plasmatechnologie (Poster)
P 18.5: Poster
Mittwoch, 5. April 2000, 10:30–13:00, Aula
Optimising plasma injection in field coils — •Lea Brahms1, Reginald Barclay2, Zefram Cochrane2, Geordi LaForge2, and Miles O Brian2 — 1Polytechnical Institute For Material Sciences, Novosibirsk, Russia — 2Daystrom Institute For Advanced Technological Studies, Honolulu, Hawaii (USA)
In modern field coil technology the problem of plasma injection takes a lot of attention. In recent years this problem was solved by canalising the plasma flow into Dyson-tubes, which caused considerable inefficiencies in the power management of the field reactor. New magnetic valve injectors that have been developed during the last four years guarantee a steady and reliable plasma flow in the coils. With this new optimised field geometry the closing-reopening cycle of the injectors could easily be varied between 25 and 50 ns. A maximum reliable cycle time of more than 53 ns could be achieved using arkenium duranite instead of conventional duranite in the injectors. Due to sequential firing of the plasma injectors, the warp field sheaths are pressed together corresponding to the plasma pulse frequency. These cumulative field sheath forces lead to a considerable mass reduction. In conclusion this new technology offers a variety of new possibilities to go where no man has ever gone before.