Full-wave modeling of the O-X mode conversion in the Pegasus toroidal experiment

A. Khn; J. Jacquot; M. W. Bongard; S. Gallian; E. T. Hinson; F. A. Volpe

doi:10.1063/1.3609828

Full-wave modeling of the O-X mode conversion in the Pegasus toroidal experiment

A. Khn, J. Jacquot, M. W. Bongard, S. Gallian, E. T. Hinson, F. A. Volpe

Research output: Contribution to journal › Review article › peer-review

5 Scopus citations

Abstract

The ordinary-extraordinary (O-X) mode conversion is modeled with the aid of a 2D full-wave code in the Pegasus toroidal experiment as a function of the launch angles. It is shown how the shape of the plasma density profile in front of the antenna can significantly influence the mode conversion efficiency and, thus, the generation of electron Bernstein waves (EBWs). It is therefore desirable to control the density profile in front of the antenna for successful operation of an EBW heating and current drive system. On the other hand, the conversion efficiency is shown to be resilient to vertical displacements of the plasma as large as 10 cm.

Original language	English
Article number	082501
Journal	Physics of Plasmas
Volume	18
Issue number	8
DOIs	https://doi.org/10.1063/1.3609828
State	Published - Aug 2011
Externally published	Yes

Funding

Authors A. Köhn and J. Jacquot wish to express their gratitude towards the Erasmus Mundus program for financial support during their visit to the University of Wisconsin–Madison.

Funders	Funder number
Erasmus Mundus
University of Wisconsin–Madison

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.3609828

Cite this

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abstract = "The ordinary-extraordinary (O-X) mode conversion is modeled with the aid of a 2D full-wave code in the Pegasus toroidal experiment as a function of the launch angles. It is shown how the shape of the plasma density profile in front of the antenna can significantly influence the mode conversion efficiency and, thus, the generation of electron Bernstein waves (EBWs). It is therefore desirable to control the density profile in front of the antenna for successful operation of an EBW heating and current drive system. On the other hand, the conversion efficiency is shown to be resilient to vertical displacements of the plasma as large as 10 cm.",

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T1 - Full-wave modeling of the O-X mode conversion in the Pegasus toroidal experiment

AU - Khn, A.

AU - Jacquot, J.

AU - Bongard, M. W.

AU - Gallian, S.

AU - Hinson, E. T.

AU - Volpe, F. A.

PY - 2011/8

Y1 - 2011/8

N2 - The ordinary-extraordinary (O-X) mode conversion is modeled with the aid of a 2D full-wave code in the Pegasus toroidal experiment as a function of the launch angles. It is shown how the shape of the plasma density profile in front of the antenna can significantly influence the mode conversion efficiency and, thus, the generation of electron Bernstein waves (EBWs). It is therefore desirable to control the density profile in front of the antenna for successful operation of an EBW heating and current drive system. On the other hand, the conversion efficiency is shown to be resilient to vertical displacements of the plasma as large as 10 cm.

AB - The ordinary-extraordinary (O-X) mode conversion is modeled with the aid of a 2D full-wave code in the Pegasus toroidal experiment as a function of the launch angles. It is shown how the shape of the plasma density profile in front of the antenna can significantly influence the mode conversion efficiency and, thus, the generation of electron Bernstein waves (EBWs). It is therefore desirable to control the density profile in front of the antenna for successful operation of an EBW heating and current drive system. On the other hand, the conversion efficiency is shown to be resilient to vertical displacements of the plasma as large as 10 cm.

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VL - 18

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ER -

Full-wave modeling of the O-X mode conversion in the Pegasus toroidal experiment

Abstract

Funding

UN SDGs

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