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  4. Long-pulse improved central electron confinement in the TCV tokamak with electron cyclotron heating and current drive
 
research article

Long-pulse improved central electron confinement in the TCV tokamak with electron cyclotron heating and current drive

Pietrzyk, Z. A.
•
Angioni, C.  
•
Behn, R.  
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2001
Physical Review Letters

Current profile tailoring by electron cyclotron heating (ECH) and current drive (ECCD) is used to improve central electron energy confinement in the TCV tokamak. Counter-ECCD on axis alone achieves this goal in a transient manner only. A stable scenario is obtained by a two-step sequence of err-axis ECH, which stabilizes magnetohydrodynamics modes, and on-axis counter-ECCD, which generates a flat or inverted current profile. This high-confinement regime, with central temperatures up to 9 keV (at a. normalized beta (N) similar to 0.6), has been sustained for the entire duration of the heating pulse, or over 200 electron energy confinement times and 5 current redistribution times.

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Type
research article
DOI
10.1103/PhysRevLett.86.1530
Web of Science ID

WOS:000167010000034

Author(s)
Pietrzyk, Z. A.
Angioni, C.  
Behn, R.  
Coda, S.  
Goodman, T. P.  
Henderson, M. A.  
Hofmann, F.  
Sauter, O.  orcid-logo
Date Issued

2001

Published in
Physical Review Letters
Volume

86

Issue

8

Start page

1530

End page

1533

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CRPP  
SPC  
Available on Infoscience
April 16, 2008
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/21718
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