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(plasma physics)
A device for confining a high-temperature plasma, consisting of a tube, which closes in on itself in a figure-eight or race-track configuration, and external coils which generate magnetic fields whose lines of force run parallel to the walls of the tube and prevent the plasma from touching the walls.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a closed magnetic trap for the confinement of a high-temperature plasma. It was proposed in 1951 by L. Spitzer, Jr., of the USA in connection with the problem of controlled thermonuclear fusion. The magnetic field in a stellarator is generated by means of external conductors. The lines of force are modified by a rotational transform, as a result of which the lines repeatedly go around the torus and form a system of closed, interleaved toroidal magnetic surfaces. The rotational transform may be achieved by the geometrical deformation of the toroidal solenoid (for example, by twisting it into a figure eight) or by means of helical conductors wound on the torus.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The world's largest stellarator is ( currently being operated by the Max Planck Institute for Plasma Physics in Germany, and researchers have now revealed that the extraordinarily complex device is ( functioning as expected.
plasma of fusion fuel WENDELSTEIN 7-X Deuterium Stellarator inside a Greifswald, and chamber's chamber, and Germany tritium shape electro- optimizes magnetic magnetic waves are field's injected into stability.
A summary of the meeting is provided in the April 2014 issue of Stellarator News:
He doesn't believe in salvation or agitprop, or deny that the camera is a machine, kin to the Stellarator and its ilk.
Test particle runs of the TRAN transport code suggest that for quasineutrality to prevail in tokamaks a certain minimum level of 3D asymmetry of the magnetic spectrum is required which is comparable to that found in quasiaxially symmetric (QAS) stellarators. The computational theory suggests that a QAS stellarator with two field periods and proportions like those of ITER is a good candidate for a fusion reactor.
The firm demonstrated this with a prototype steel casting for the National Compact Stellarator Experiment (NCSX).
Although the bottles can be made according to a variety of designs, one of the simplest is that of a doughnut produced by massive machines with the names tokamak and stellarator.
Since the completion of the D-T experiments in 1997, the Princeton Plasma Physics Laboratory has taken on two major experimental projects: the National Spherical Torus Experiment for an increased understanding of fusion physics, and the National Compact Stellarator Experiment, which is still being designed.
This contrasts to a similar concept, the stellarator, in which all of the confining magnetic fields are produced by external coils.
For years researchers had looked for a feasible means of producing nuclear fusion, which occurs when atomic nuclei combine, releasing energy (see 1951, Stellarator).