Original scientific paper

Use of magnetic shear for the improvement of quality of confinement in the plasma of tokamak

M. El Mouden ; Laboratory of Theoretical Physics, Faculty of Sciences - Ain Chock, Casablanca, Morocco
D. Saifaoui ; Laboratory of Theoretical Physics, Faculty of Sciences - Ain Chock, Casablanca, Morocco
A. Dezairi ; Laboratory of the Physics of Condensed Matter, Faculty of Sciences - Ben M'sik, Casablanca, Morocco
H. Imzi ; Laboratory of Theoretical Physics, Faculty of Sciences - Ain Chock, Casablanca, Morocco

Abstract

We investigate the influence of reversed shear on the improvement of the confinement's quality in the plasma of a tokamak, specifically in reducing the anomalous transport. We use a special model for the drift wave fields. Comparison between the particle trajectories for normal and reversed shear is carried out in 2D and 3D presentation. The diffusion coefficient of particles and the radial electric field for the two cases, normal and negative shear, have been evaluated.

Keywords

plasma confinement; tokamak; anomalous transport; magnetic shear; transport barrier; particle diffusion; radial electric field; enhanced confinement

Hrčak ID:

302009

URI

https://hrcak.srce.hr/302009

Publication date:

2.10.2005.

Article data in other languages: croatian

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