A stellarator is a device used to confine a hot plasma with magnetic fields in order to sustain a controlled nuclear fusion reaction. It is one of the earliest controlled fusion devices, first invented by Lyman Spitzer in 1950 and built the next year at what later became the Princeton Plasma Physics Laboratory. The name refers to the possibility o...
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http://en.wikipedia.org/wiki/Stellarator
(from the article `nuclear fusion`) ...field and by electric currents flowing within the plasma. Since the late 1960s the tokamak has been the major focus of magnetic fusion research ... Other toroidal confinement concepts that offer potential advantages over the tokamak are being developed. Three such alternatives are the ... [2 rel...
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http://www.britannica.com/eb/a-z/s/159
Device invented by Lyman Spitzer for the containment of a plasma inside a racetrack-shaped (sometimes a figure-8) tube. The plasma is contained by a magnetic field created by helical windings around the tube. More generally, a toroidal sort of device that attempts to average out particle drifts that would otherwise take plasma to the walls of the v...
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http://www.encyclo.co.uk/local/20973
an experimental plasma-physics device in which magnetic fields confine the plasma within a tube shaped like a figure eight.
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https://www.infoplease.com/dictionary/stellarator
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