Origin of axial current in scyllac | Zendy

Kazuhisa Sugisaki | Zendy

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Origin of axial current in scyllac

Author(s) -

Kazuhisa Sugisaki

Publication year - 1975

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/4152100

Subject(s) - stellarator , current (fluid) , plasma , magnetic field , bootstrap current , electromagnetic coil , plasma stability , beta (programming language) , physics , magnetohydrodynamics , atomic physics , nuclear magnetic resonance , mechanics , tokamak , nuclear physics , thermodynamics , quantum mechanics , computer science , programming language

The origin of the axial current observed in Scyllac (a high beta stellarator experiment) is discussed. A shaped coil and/or helical winding produce rotational transform which links magnetic lines of force to the plasma column and the axial current is induced electromagnetically. This phenomenon is inherent in a pulsed high-beta stellarator. The rotational transform produced by the induced axial current is much smaller than that associated with the l = 1, 0 equilibrium fields. The effect of the axial current on the equilibrium and stability of the plasma column is thus small. It is also shown that the magnetic field shear near a plasma surface is very strong. (auth

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