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Beginning with the ideal MHD pressure balance equation, an expression for the average poloidal beta, beta(theta), is derived. A method for unobtrusively measuring the quantities used to evaluate beta(theta) in EXTRAP T1 is described. The results of a series of measurements yielding beta(theta) as a function of externally applied toroidal field are presented.

Additional information

Authors: HEDIN E R, Royal Institute of Technology, Stockholm (SE)
Bibliographic Reference: Report: TRITA-PFU-88-13 EN (1988)
Availability: Available from the Department of Plasma Physics and Fusion Research, Royal Institute of Technology, S-100 44 Stockholm (SE)
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