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Effects of a non-monotonic safety factor on the particle transport and diffusion in the case of a reversed magnetic shear

Published online by Cambridge University Press:  30 April 2009

M. GHABBOURI ,
D. SAIFAOUI ,
A. BOULEZHAR ,
A. DEZAIRI  and
M. EL MOUDEN
M. GHABBOURI
Affiliation:
Laboratory of Theoretical Physics, Faculty of Sciences Ain Chock, Casablanca, Morocco ([email protected])
D. SAIFAOUI
Affiliation:
Laboratory of Theoretical Physics, Faculty of Sciences Ain Chock, Casablanca, Morocco ([email protected])
A. BOULEZHAR
Affiliation:
Laboratory of Theoretical Physics, Faculty of Sciences Ain Chock, Casablanca, Morocco ([email protected])
A. DEZAIRI
Affiliation:
Laboratoire de Physique de la Matière Condensée, Faculté des Sciences Ben M'sik, B.P. 7955, Casablanca, Morocco
M. EL MOUDEN
Affiliation:
Laboratory of Theoretical Physics, Faculty of Sciences Ain Chock, Casablanca, Morocco ([email protected]) Institut Jean Lamour, CNRS–Nancy-Université–UPV-Metz, UMR 7198, Département P2M, Université Henri-Poincaré, Nancy I, B.P. 239, 54506 Vandoeuvre les Nancy cedex, France
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Abstract

This work is based on a numerical study of particle transport and diffusion using ITER parameters. In particular, the effects of introducing a non-monotonic safety factor (NMSF) in the case of a reversed magnetic shear are shown. These results are compared with those found by using a monotonic safety factor (MSF). Double internal transport barriers are detected influencing the transport and diffusion of particles. The choices of the mode (m, n) and the m/n values play a dominant role for the particle diffusion, which leads to an improvement of the magnetic confinement.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Issue 1 , February 2010 , pp. 29 - 37
Copyright
Copyright © Cambridge University Press 2009

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