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Title: Determination of the non-ideal response of a high temperature tokamak plasma to a static external magnetic perturbation via asymptotic matching

Abstract

Asymptotic matching techniques are used to calculate the response of a high temperature tokamak plasma with a realistic equilibrium to an externally generated, non-axisymmetric, static, magnetic perturbation. The plasma is divided into two regions. In the outer region, which comprises most of the plasma, the response is governed by the linearized equations of marginally stable, ideal-magnetohydrodynamics (MHD). In the inner region, which is strongly localized around the various rational surfaces within the plasma (where the marginally stable, ideal-MHD equations become singular), the response is governed by Glasser-Greene-Johnson linear layer physics. For the sake of simplicity, the paper focuses on the situation where the plasma at one of the internal rational surfaces is locked to the external perturbation, whereas that at the other surfaces is rotating.

Authors:
ORCiD logo [1]
  1. Univ. of Texas, Austin, TX (United States)
Publication Date:
Research Org.:
Univ. of Texas, Austin, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1535321
Alternate Identifier(s):
OSTI ID: 1368415
Grant/Contract Number:  
FG02-04ER54742
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 7; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Physics

Citation Formats

Fitzpatrick, Richard. Determination of the non-ideal response of a high temperature tokamak plasma to a static external magnetic perturbation via asymptotic matching. United States: N. p., 2017. Web. doi:10.1063/1.4990701.
Fitzpatrick, Richard. Determination of the non-ideal response of a high temperature tokamak plasma to a static external magnetic perturbation via asymptotic matching. United States. doi:10.1063/1.4990701.
Fitzpatrick, Richard. Thu . "Determination of the non-ideal response of a high temperature tokamak plasma to a static external magnetic perturbation via asymptotic matching". United States. doi:10.1063/1.4990701. https://www.osti.gov/servlets/purl/1535321.
@article{osti_1535321,
title = {Determination of the non-ideal response of a high temperature tokamak plasma to a static external magnetic perturbation via asymptotic matching},
author = {Fitzpatrick, Richard},
abstractNote = {Asymptotic matching techniques are used to calculate the response of a high temperature tokamak plasma with a realistic equilibrium to an externally generated, non-axisymmetric, static, magnetic perturbation. The plasma is divided into two regions. In the outer region, which comprises most of the plasma, the response is governed by the linearized equations of marginally stable, ideal-magnetohydrodynamics (MHD). In the inner region, which is strongly localized around the various rational surfaces within the plasma (where the marginally stable, ideal-MHD equations become singular), the response is governed by Glasser-Greene-Johnson linear layer physics. For the sake of simplicity, the paper focuses on the situation where the plasma at one of the internal rational surfaces is locked to the external perturbation, whereas that at the other surfaces is rotating.},
doi = {10.1063/1.4990701},
journal = {Physics of Plasmas},
number = 7,
volume = 24,
place = {United States},
year = {2017},
month = {7}
}

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