The Impact of Radio Frequency Waves on the Plasma Density in the Tokamak Edge-Reference-Cited by-同舟云学术

The Impact of Radio Frequency Waves on the Plasma Density in the Tokamak Edge

Published:2023-01-28 Issue:1 Volume:5 Page:116-130
ISSN:2624-8174
Container-title:Physics
language:en
Short-container-title:Physics

Author:

Van Eester Dirk¹^ORCID,Tournay Nil²

Affiliation:

1. Laboratory for Plasma Physics, ERM-KMS, B-1000 Brussels, Belgium

2. Ecole Polytechnique de Bruxelles, Université Libre de Bruxelles, B-1000 Brussels, Belgium

Abstract

A simple model is presented to describe how the radio frequency electromagnetic field modifies the plasma density the antenna faces in tokamaks. Aside from “off-the-shelf” equations standardly used to describe wave-plasma interaction relying on the quasilinear approach, it invokes the ponderomotive force in presence of the confining static magnetic field. The focus is on dynamics perpendicular to the Bo magnetic field. Stronger fields result in density being pushed further away from the launcher and in stronger density asymmetry along the antenna.

Publisher

MDPI AG

Subject

General Physics and Astronomy

Link

https://www.mdpi.com/2624-8174/5/1/9/pdf

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