Enhanced radial energy transport induced by radially curved Alfvén eigenmode wavefronts

G. J. Kramer; B. J. Tobias; A. Turnbull; E. M. Bass

doi:10.1088/1741-4326/ab2ee3

Enhanced radial energy transport induced by radially curved Alfvén eigenmode wavefronts

G. J. Kramer
, B. J. Tobias
, A. Turnbull
, E. M. Bass

PPPL Tokamak Expermntl Science

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

8 Scopus citations

Abstract

Radially curved Alfvén eigenmode wavefronts as observed on the electron cyclotron emission imaging diagnostic indicate that the modes are associated with a net radial energy flow. This energy flow is due to a radial mismatch in the location of the drive and damping of the mode. Energy transport is created by an enhanced parallel fluctuating magnetic field that is generated by the radial wavefront curvature.

Original language	English (US)
Article number	094001
Journal	Nuclear Fusion
Volume	59
Issue number	9
DOIs	https://doi.org/10.1088/1741-4326/ab2ee3
State	Published - Jul 17 2019

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

Alven eigenmodes
ECE imaging
ideal MHD
poynting vector

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10.1088/1741-4326/ab2ee3

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title = "Enhanced radial energy transport induced by radially curved Alfv{\'e}n eigenmode wavefronts",

abstract = "Radially curved Alfv{\'e}n eigenmode wavefronts as observed on the electron cyclotron emission imaging diagnostic indicate that the modes are associated with a net radial energy flow. This energy flow is due to a radial mismatch in the location of the drive and damping of the mode. Energy transport is created by an enhanced parallel fluctuating magnetic field that is generated by the radial wavefront curvature.",

keywords = "Alven eigenmodes, ECE imaging, ideal MHD, poynting vector",

author = "Kramer, \{G. J.\} and Tobias, \{B. J.\} and A. Turnbull and Bass, \{E. M.\}",

note = "Publisher Copyright: {\textcopyright} 2019 IAEA, Vienna.",

year = "2019",

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doi = "10.1088/1741-4326/ab2ee3",

language = "English (US)",

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AU - Kramer, G. J.

AU - Tobias, B. J.

AU - Turnbull, A.

AU - Bass, E. M.

PY - 2019/7/17

Y1 - 2019/7/17

N2 - Radially curved Alfvén eigenmode wavefronts as observed on the electron cyclotron emission imaging diagnostic indicate that the modes are associated with a net radial energy flow. This energy flow is due to a radial mismatch in the location of the drive and damping of the mode. Energy transport is created by an enhanced parallel fluctuating magnetic field that is generated by the radial wavefront curvature.

AB - Radially curved Alfvén eigenmode wavefronts as observed on the electron cyclotron emission imaging diagnostic indicate that the modes are associated with a net radial energy flow. This energy flow is due to a radial mismatch in the location of the drive and damping of the mode. Energy transport is created by an enhanced parallel fluctuating magnetic field that is generated by the radial wavefront curvature.

KW - Alven eigenmodes

KW - ECE imaging

KW - ideal MHD

KW - poynting vector

UR - https://www.scopus.com/pages/publications/85072059640

UR - https://www.scopus.com/pages/publications/85072059640#tab=citedBy

U2 - 10.1088/1741-4326/ab2ee3

DO - 10.1088/1741-4326/ab2ee3

M3 - Article

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VL - 59

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 9

M1 - 094001

ER -

Enhanced radial energy transport induced by radially curved Alfvén eigenmode wavefronts

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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