Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

W. A. Cooper; D. López-Bruna; M. A. Ochando; F. Castejón; J. P. Graves; A. Kleiner; S. Lanthaler; H. Patten; M. Raghunathan; J. M. Faustin

doi:10.1088/1741-4326/aadbef

Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

W. A. Cooper
, D. López-Bruna
, M. A. Ochando
, F. Castejón
, J. P. Graves
, A. Kleiner
, S. Lanthaler
, H. Patten
, M. Raghunathan
, J. M. Faustin

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias advanced stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations are driven by the interaction of the pressure gradient with the magnetic field line curvature and correspond to saturated ideal magnetohydrodynamic interchanges with a mode structure dominated by nonresonant m = 1, n = ±1 Fourier components. The conditions of quasi-isodynamicity of the Helias reactor system investigated are not significantly altered by the periodicity-breaking distortions.

Original language	English (US)
Article number	124002
Journal	Nuclear Fusion
Volume	58
Issue number	12
DOIs	https://doi.org/10.1088/1741-4326/aadbef
State	Published - Sep 20 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

equilibrium
periodicity-breaking
stellarator

Access to Document

10.1088/1741-4326/aadbef

Cite this

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title = "Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states",

abstract = "The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias advanced stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations are driven by the interaction of the pressure gradient with the magnetic field line curvature and correspond to saturated ideal magnetohydrodynamic interchanges with a mode structure dominated by nonresonant m = 1, n = ±1 Fourier components. The conditions of quasi-isodynamicity of the Helias reactor system investigated are not significantly altered by the periodicity-breaking distortions.",

keywords = "equilibrium, periodicity-breaking, stellarator",

author = "Cooper, \{W. A.\} and D. L{\'o}pez-Bruna and Ochando, \{M. A.\} and F. Castej{\'o}n and Graves, \{J. P.\} and A. Kleiner and S. Lanthaler and H. Patten and M. Raghunathan and Faustin, \{J. M.\}",

note = "Publisher Copyright: {\textcopyright} EURATOM 2018.",

year = "2018",

month = sep,

day = "20",

doi = "10.1088/1741-4326/aadbef",

language = "English (US)",

volume = "58",

journal = "Nuclear Fusion",

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TY - JOUR

T1 - Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

AU - Cooper, W. A.

AU - López-Bruna, D.

AU - Ochando, M. A.

AU - Castejón, F.

AU - Graves, J. P.

AU - Kleiner, A.

AU - Lanthaler, S.

AU - Patten, H.

AU - Raghunathan, M.

AU - Faustin, J. M.

PY - 2018/9/20

Y1 - 2018/9/20

N2 - The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias advanced stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations are driven by the interaction of the pressure gradient with the magnetic field line curvature and correspond to saturated ideal magnetohydrodynamic interchanges with a mode structure dominated by nonresonant m = 1, n = ±1 Fourier components. The conditions of quasi-isodynamicity of the Helias reactor system investigated are not significantly altered by the periodicity-breaking distortions.

AB - The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias advanced stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations are driven by the interaction of the pressure gradient with the magnetic field line curvature and correspond to saturated ideal magnetohydrodynamic interchanges with a mode structure dominated by nonresonant m = 1, n = ±1 Fourier components. The conditions of quasi-isodynamicity of the Helias reactor system investigated are not significantly altered by the periodicity-breaking distortions.

KW - equilibrium

KW - periodicity-breaking

KW - stellarator

UR - https://www.scopus.com/pages/publications/85056462060

UR - https://www.scopus.com/pages/publications/85056462060#tab=citedBy

U2 - 10.1088/1741-4326/aadbef

DO - 10.1088/1741-4326/aadbef

M3 - Article

AN - SCOPUS:85056462060

SN - 0029-5515

VL - 58

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 12

M1 - 124002

ER -

Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

Abstract

All Science Journal Classification (ASJC) codes

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