A semi-analytical model of RF condensation that can handle localized power depositions-Reference-Cited by-同舟云学术

A semi-analytical model of RF condensation that can handle localized power depositions

Published:2024-03-01 Issue:3 Volume:31 Page:
ISSN:1070-664X
Container-title:Physics of Plasmas
language:en
Short-container-title:

Author:

Bobell Ben¹^ORCID,Sun Danny¹^ORCID,Reiman Allan H.²^ORCID

Affiliation:

1. Princeton University 1 , Princeton, New Jersey 08544, USA

2. Princeton Plasma Physics Laboratory 2 , Princeton, New Jersey 08544, USA

Abstract

A nonlinear effect, RF (radio frequency) condensation, can be used to facilitate RF stabilization of magnetic islands. Previously studied semi-analytical models for RF condensation are suited mainly for broad deposition profiles and are unable to handle power depositions that are localized in the interior of a magnetic island. The power deposition profile of electron cyclotron waves, in particular, can be highly localized near a cyclotron resonance. Here, a model is developed that can handle both localized profiles and broad profiles. This allows a comparison of RF condensation for narrow vs broad deposition profiles, and it allows a study of the dependence of RF condensation of localized deposition profiles on key parameters.

Funder

Fusion Energy Sciences

Publisher

AIP Publishing

Link

https://pubs.aip.org/aip/pop/article-pdf/doi/10.1063/5.0191439/19850129/032116_1_5.0191439.pdf

Reference42 articles.

1. Confining a Tokamak Plasma with rf-Driven Currents

2. Creating an Asymmetric Plasma Resistivity with Waves

3. Suppression of magnetic islands by rf driven currents

4. Numerical study of magnetic island suppression by RF waves in large tokamaks

5. Complete Suppression of Neoclassical Tearing Modes with Current Drive at the Electron-Cyclotron-Resonance Frequency in ASDEX Upgrade Tokamak