Steady-state fully noninductive current driven by electron cyclotron waves in a magnetically confined plasma
Sauter, O.; Henderson, M. A.; Hofmann, F.; Goodman, T.; Alberti, S.; Angioni, C.; Appert, K.; Behn, R.; Blanchard, P.; Bosshard, P.; Chavan, R.; Coda, S.; Duval, B. P.; Fasel, D.; Favre, A.; Furno, I.; Gorgerat, P.; Hogge, J. P.; Isoz, P. F.; Joye, B.; Lavanchy, P.; Lister, J. B.; Llobet, X.; Magnin, J. C.; Mandrin, P.; Manini, A.; Marletaz, B.; Marmillod, P.; Martin, Y.; Mayor, J. M.; Martynov, A. A.; Mlynar, J.; Moret, J. M.; Nieswand, C.; Nikkola, P.; Paris, P.; Perez, A.; Pietrzyk, Z. A.; Pitts, R. A.; Pochelon, A.; Pochon, G.; Refke, A.; Reimerdes, H.; Rommers, J.; Scavino, E.; Tonetti, G.; Tran, M. Q.; Troyon, F.; Weisen, H.
2000

Abstract

A steady-state, fully noninductive plasma current has been sustained for the first time in a tokamak using electron cyclotron current drive only. In this discharge, 123 kA of current have been sustained for the entire gyrotron pulse duration of 2 s. Careful distribution across the plasma miner radius of the power deposited from three 0.5-MW gyrotrons was essential for reaching steady-state conditions. With central current drive, up to 153 kA of current have been fully replaced transiently for 100 ms. The noninductive scenario is confirmed by the ability to recharge the Ohmic transformer The dependence of the current drive efficiency on the minor radius is also demonstrated.

Details

Title Steady-state fully noninductive current driven by electron cyclotron waves in a magnetically confined plasma
Author(s) Sauter, O. ; Henderson, M. A. ; Hofmann, F. ; Goodman, T. ; Alberti, S. ; Angioni, C. ; Appert, K. ; Behn, R. ; Blanchard, P. ; Bosshard, P. ; Chavan, R. ; Coda, S. ; Duval, B. P. ; Fasel, D. ; Favre, A. ; Furno, I. ; Gorgerat, P. ; Hogge, J. P. ; Isoz, P. F. ; Joye, B. ; Lavanchy, P. ; Lister, J. B. ; Llobet, X. ; Magnin, J. C. ; Mandrin, P. ; Manini, A. ; Marletaz, B. ; Marmillod, P. ; Martin, Y. ; Mayor, J. M. ; Martynov, A. A. ; Mlynar, J. ; Moret, J. M. ; Nieswand, C. ; Nikkola, P. ; Paris, P. ; Perez, A. ; Pietrzyk, Z. A. ; Pitts, R. A. ; Pochelon, A. ; Pochon, G. ; Refke, A. ; Reimerdes, H. ; Rommers, J. ; Scavino, E. ; Tonetti, G. ; Tran, M. Q. ; Troyon, F. ; Weisen, H.
Published in Physical Review Letters
Volume 84
Issue 15
Pages 3322-3325
Date 2000
ISSN 0031-9007
DOI https://doi.org/10.1103/PhysRevLett.84.3322
Other identifier(s) View record in Web of Science
DAR: 2999
Laboratories CRPP
SPC
Record Appears in Scientific production and competences > SB - School of Basic Sciences > SPC - Swiss Plasma Center > SPC - Swiss Plasma Center
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2008-04-16

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