Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T14:58:34.446Z Has data issue: false hasContentIssue false
  • English
  • Français

Transport barriers with magnetic shear in a tokamak

Published online by Cambridge University Press:  01 August 2007

M. EL MOUDEN ,
D. SAIFAOUI ,
A. DEZAIRI ,
B. ZINE  and
M. EDDAHBY
M. EL MOUDEN
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. DEZAIRI
Affiliation:
Laboratory of the Physics of Condensed Matter, Faculty of Sciences, Ben M'sik, Casablanca, Morocco
B. ZINE
Affiliation:
Laboratory of Theoretical Physics, Faculty of Sciences, Ain Chock, Casablanca, Morocco ([email protected])
M. EDDAHBY
Affiliation:
Laboratory of the Physics of Condensed Matter, Faculty of Sciences, Ben M'sik, Casablanca, Morocco
Get access Rights & Permissions [Opens in a new window]

Abstract

The reversed magnetic shear is the most important factor in the study of the plasmas of a tokamak. In this paper we focus our research, as a first stage, on the control of the improved confinement regimes by studying the influence of the reversed shear on its quality in the plasma of a tokamak and especially in reducing the anomalous transport in ITER. Then we study the influence of the perturbation modes on the particle diffusion. At the end, a comparison between simulation results obtained using ITER and TEXT parameters is carried out.

Type
Papers
Information
Journal of Plasma Physics , Volume 73 , Issue 4 , August 2007 , pp. 439 - 453
Copyright
Copyright © Cambridge University Press 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1]Horton, W., Park, H. B., Kwon, J. M., Strozzi, D., Morrison, P. J. and Choi, D. I. 1998 Drift wave test particle transport in reserved shear profile. Phys. Plasmas 5 (11), 3910–3917.CrossRefGoogle Scholar
[2]Kiviniemi, T. P., Kurki-Suonio, T. and Sipilä, S. K. 1999 L–H Transport barrier formation: self-consistent simulation and comparison with ASDEX Upgrade experiments. Czech. J. Phys. 49, Suppl. S3, 81–92.Google Scholar
[3]El Mouden, M., Saifaoui, D., Dezairi, A. and Imzi, H. 2005 Use of magnetic shear for the improvement of quality of confinement in the plasma of tokamak. Fizika A14 (4), 277–288.Google Scholar
[4]El Mouden, M., Saifaoui, D., Dezairi, A., Rouak, A. and Imzi, H. 2004 The influences of the magnetic shear on the improvement of the quality of the confinement in plasma of tokamak. In: Proc. 31st EPS Conf. on Plasma Physics and Controlled Fusion, London, UK, 28 June–2 July 2004, ECA Vol. 28G, 5.181.Google Scholar
[5]Imzi, H., Saifaoui, D., Dezairi, A. and Miskane, F. 2002 Contribution of reversed shear in reducing the anomalous transport. Eur. Phys. J. 17, 45–52.Google Scholar
[6]Tabet, R., Saifaoui, D., Dezairi, A. and Rouak, A. 1998 Eur. Phys. J. 4, 329.Google Scholar
[7]Oualyoudine, A., Saifaoui, D., Dezairi, A. and Rouak, A. 1997 J. Phys. III France, 7, 1045–1061.Google Scholar
[8]Saifaoui, D. 2001 Contribution of reversed shear in reducing the anomalous transport. In: Proc. 28th EPS Conf. on Controlled Fusion and Plasma Physics, Madeira, Portugal, 18–22 June 2001, ECA Vol. 25A, 1833–1836.Google Scholar
[9]Miskane, F., Dezairi, A., Saifaoui, D., Imzi, H., Imrane, H. and Benharraf, M. 2001 Contribution of electrostatic and magnetic turbulence to anomalous transport in tokamak. Eur. Phys. J. 13, 205–223.Google Scholar
[10]El Mouden, M., Saifaoui, D., Dezairi, A. and Imzi, H. 2004 The influences of magnetic shear on the improvement of the quality of confinement in the plasma of tokamak. J. Condensed Matter 5 (2), 203–208.Google Scholar
[11]Fisher, O., Cooper, W. A. and Villard, L. Magnetic topology and guiding-center orbits in a reserved Tokamak shear. LRP 636/99.Google Scholar
[12]Lewandowski, J. L. V. and Persson, M. 1995 Plasma Phys. Control. Fusion 37 (11), 1199.CrossRefGoogle Scholar
[13]Takenaga, H. et al. 1998 Determination of particle transport coefficients in reversed shear plasma of JT-60U. Plasma Phys. Control. Fusion, 40, 183.CrossRefGoogle Scholar
[14]Samm, U. Controlled thermonuclear fusion enters with ITER into a new era. http://www.jet.efda.org/documents/articles/articles.html.Google Scholar
[15]Kamada, Y. 2000 Observations on the formation of transport barriers. Plasma Phys. Control. Fusion 42, A65–A80.CrossRefGoogle Scholar
[16]Bell, M. G., Bell, R. E., Ernst, D. R., LeBlanc, B. P., Levinton, F. M., Mazzucato, E., Synakowski, E. J. and Zarnstorff, M. C. Radial electric fields and transport barrier formation in TFTR. In: Princeton Plasma Physics Laboratory (MGB REFP Workshop/000618-9), Princeton, N.J.Google Scholar