Beta-limiting MHD Instabilities in Improved-performance NSTX Spherical Torus Plasmas
Description:
Global magnetohydrodynamic stability limits in the National Spherical Torus Experiment (NSTX) have increased significantly recently due to a combination of device and operational improvements. First, more routine H-mode operation with broadened pressure profiles allows access to higher normalized beta and lower internal inductance. Second, the correction of a poloidal field coil induced error-field has largely eliminated locked tearing modes during normal operation and increased the maximum ach…
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Date:
May 29, 2003
Creator:
Menard, J. E.; Bell, M. G.; Bell, R. E.; Kaye, E. D. Fredrickson D. A. Gates: S. M.; LeBlanc, B. P.; Maingi, R. et al.
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Partner:
UNT Libraries Government Documents Department