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Large Plasma Device : ウィキペディア英語版 | Large Plasma Device
The Large Plasma Device is an experimental physics device at UCLA. It is designed as a general-purpose laboratory for experimental plasma physics research. The current version of the device began operation in 2001. The modern LaPD is operated as a national user facility, which means that half the research time on the device is open to scientists at other institutions. == Machine overview ==
The LaPD is a pulsed-discharge device operated at a high (1 Hz) repetition rate, producing a strongly magnetized background plasma which is physically large enough to support Alfvén waves. Plasma is produced from a cathode-anode discharge at one end of a 20-meter long, 1 meter diameter cylindrical vacuum vessel ((diagram )). The resulting plasma column is roughly 16.5 meters long and 60 cm in diameter. The background magnetic field, produced by a series of large electromagnets surrounding the chamber, can be varied from 400 gauss to 2.5 kilogauss (40 to 250 mT).
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