Magnetic diagnostics for equilibrium reconstruction and realtime plasma control in NSTX-Upgrade

Magnetic diagnostics for equilibrium reconstruction and realtime plasma control in NSTX-Upgrade

This paper describes aspects of magnetic diagnostics for realtime control in National Spherical Torus Experiment-Upgrade (NSTX-U). The sensor arrangement on the upgraded center column is described. New analog and digital circuitry for processing the plasma current Rogowski data are presented. An imp...

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Veröffentlicht in:Review of scientific instruments 2014-11, Vol.85 (11), p.11E807-11E807
Hauptverfasser: Gerhardt, S P, Erickson, K, Kaita, R, Lawson, J, Mozulay, R, Mueller, D, Que, W, Rahman, N, Schneider, H, Smalley, G, Tresemer, K
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Sprache:eng
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Zusammenfassung:This paper describes aspects of magnetic diagnostics for realtime control in National Spherical Torus Experiment-Upgrade (NSTX-U). The sensor arrangement on the upgraded center column is described. New analog and digital circuitry for processing the plasma current Rogowski data are presented. An improved algorithm for estimating the plasma vertical velocity for feedback control is presented.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4889781