Shape dependence of sawtooth inversion radii and profile peaking factors in TCV L mode plasmas
Weisen, H.; Furno, I.; Alberti, S.; Angioni, C.; Appert, K.; Behn, R.; Blanchard, P.; Bosshard, P.; Coda, S.; Condrea, I.; Degeling, A.; Duval, B. P.; Gomez, P.; Goodman, T. P.; Henderson, M. A.; Hofmann, F.; Hogge, J. P.; Joye, B.; Lister, J. B.; Llobet, X.; Manini, A.; Martin, Y.; Martynov, A.; Mayor, J. M.; Minardi, E.; Mlynar, J.; Moret, J. M.; Nikkola, P.; Pietrzyk, Z. A.; Pitts, R. A.; Pochelon, A.; Reimerdes, H.; Rommers, J. H.; Sauter, O.; Scavino, E.; Tonetti, G.; Tran, M. Q.; Zabolotsky, A.
2002

Abstract

Sawtooth inversion radii and profile peaking factors of a large variety of ohmic and ECH heated L mode plasmas, including, elongations up to 2.6 and triangularities between -0.5 and 0.75, have been investigated in the TCV tokamak. In ohmic plasmas, normalized inversion radii and electron temperature profile peaking factors (corrected for sawtoothing effects) depend solely on the parameter (j)/q(0)j(0), irrespective of plasma shape. With ECH this parameter remains the main scaling parameter. Density profiles are well described as functions of poloidal flux, in agreement with turbulent equipartition theories. Parameter conversions are also provided that allow the observed scalings to be expressed using the conventional scaling variables q(95), delta(95) and kappa(95).

Details

Title Shape dependence of sawtooth inversion radii and profile peaking factors in TCV L mode plasmas
Author(s) Weisen, H. ; Furno, I. ; Alberti, S. ; Angioni, C. ; Appert, K. ; Behn, R. ; Blanchard, P. ; Bosshard, P. ; Coda, S. ; Condrea, I. ; Degeling, A. ; Duval, B. P. ; Gomez, P. ; Goodman, T. P. ; Henderson, M. A. ; Hofmann, F. ; Hogge, J. P. ; Joye, B. ; Lister, J. B. ; Llobet, X. ; Manini, A. ; Martin, Y. ; Martynov, A. ; Mayor, J. M. ; Minardi, E. ; Mlynar, J. ; Moret, J. M. ; Nikkola, P. ; Pietrzyk, Z. A. ; Pitts, R. A. ; Pochelon, A. ; Reimerdes, H. ; Rommers, J. H. ; Sauter, O. ; Scavino, E. ; Tonetti, G. ; Tran, M. Q. ; Zabolotsky, A.
Published in Nuclear Fusion
Volume 42
Issue 2
Pages 136-142
Date 2002
ISSN 0029-5515
DOI https://doi.org/10.1088/0029-5515/42/2/303
Other identifier(s) View record in Web of Science
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