PPPL-4216

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<b>Tearing Mode Stability of Model Plasmas in the National Compact
Stellarator Experiment</b>
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<b>Authors:</b> E.D. Fredrickson, M.C. Zarnstorff, and E.A. Lazarus
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Predictive simulations of target plasmas for the National Compact Stellarator Experiment (NCSX) were performed as part of the design effort. The resistive stability of these simulated target plasmas was studied using a quasi-cylindrical &Delta;' stability code as has been done with some success for W7-AS plasmas. The plasmas were found to be classically unstable to an m=2, n=1 tearing mode during the start-up, but the 2/1 saturated island size in the target equilibrium was small, < 2&#37;. Inclusion of neoclassical effects resulted in negligible island sizes throughout.
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<a href="PPPL-4216.pdf">Download PPPL-4216</a> <b>PREPRINT*</b> (pdf 580 Kb)
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<b>*NOTICE</b>: this is the author's version of a work that was accepted for publication in Fusion Science and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in:
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<a href="http://epubs.ans.org/rip/index.cgi?ja=fst-51-2-232-237"><i>Fusion Science and Technology <b>51</b>:2 (February 2007) 232&ndash;237.</i></a>



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