First Results from the Madison Symmetric Torus Reversed Field Pinch
S. C. Prager, A. F. Almagri, S. Assadi, J. A. Beckstead, R. N.
Dexter, D. J. Den Hartog, G. Chartas, S. A. Hokin, T. W. Lovell, T. D.
Rempel, J. S. Sarff, W. Shen, C. W. Spragins, and J.
C. Sprott
Department of Physics, University
of Wisconsin, Madison, Wisconsin 53706
(Received 5 December 1989; accepted 21 February 1990)
ABSTRACT
The first period of physics operation of the Madison Symmetric Torus (MST)
reversed field pinch [Plasma Physics and Controlled Nuclear Fusion Research
1988 (IAEA, Vienna, 1989), Vol 2, p. 757] has produced information
on sawtooth oscillations, edge magnetic and electrostatic fluctuations,
and equilibrium parameters at large plasma size. Sawtooth oscillations
are prevelent at all values of pinch parameter and might constitute discrete
dynamo events. Both electrostatic and magnetic fluctuations are of sufficient
magnitude to be relevant to transport in the reversed field pinch. In the
plasmas studied to date (up to a plasma current of 0.5 MA) the poloidal
beta value is about 10% or greater.
Ref: S. C. Prager, A. F. Almagri, S. Assadi, J. A. Beckstead, R. N.
Dexter, D. J. Den Hartog, G. Chartas, S. A. Hokin, T. W. Lovell, T. D.
Rempel, J. S. Sarff, W. Shen, C. W. Spragins, and J.
C. Sprott, Phys. Fluids B
2, 1367-1371 (1990)
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