Stellarator

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stellarator

[′stel·ə‚rād·ər]
(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.

Stellarator

 

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.

References in periodicals archive ?
A billion dollar class stellarator/heliotron device (LHD) has been in operation in Japan for many years and another large stellarator (W7-X) is under construction in Germany.
The reliability of the code has been established by using it to study zero pressure stellarators where islands are known to exist in equilibria found by solving the Laplace equation.
Sep 22-27 Alushta-2008 International Conference and School on Plasma Physics and Controlled Fusion and 3ed Alushta International Workshop on the Role of Electric Fields in Plasma Confinement in Stellarators and Tokamaks.
He has published over 200 scientific papers in various journals and in 2001 published "A History of Stellarators in the Ukraine" in the Journal of Fusion Energy.
ICC program was running at $20.8 M per year, distributed as follows: tokamak innovations and physics ($3.9 M); stellarators ($3.4 M); self-organized concepts, such as spheromaks and field-reversed concepts ($6 M); high pressure and high field concepts ($4 M); and Other, such as levitated dipole ($3.5 M).
October 3-11 15th International Stellarator Workshop and IAEA Technical Workshop on Innovative Concepts and Theory of Stellarators.
Therefore, the Committee directs the Department to utilize $29,900,000 of funding proposed for ITER and the additional $5,605,000 to restore U.S.-based fusion funding to fiscal year 2005 levels as follows: $7,300,000 for high performance materials for fusion; $14,305,000 to restore operation of the three major user facilities to fiscal year 2005 operating levels; $7,200,000 for intense heavy ion beams and fast ignition studies; $5,100,000 for compact stellarators and small-scale experiments; and $1,600,000 for theory.
Hutch Neilson (Princeton Plasma Physics Laboratory) described the promise and status of Compact Stellarators. He said that Compact Stellarators "solved critical problems for magnetic fusion," by providing a concept having steady state without current drive and one having no disruptions, being stable without feedback control or rotation drive.
Tolok was given the leadership responsibility for the development of the stellarator line at KIPT, carrying out the corresponding theoretical and experimental program.