Electromagnetic particle-in-cell simulations of a lower hybrid grill

Karin Rantamäki; Timo Pättikangas; Seppo Karttunen; K. Alm-Lytz; J. Verboncoeur; P. Mardahl

doi:10.1088/0741-3335/44/7/321

Electromagnetic particle-in-cell simulations of a lower hybrid grill

Karin Rantamäki (Corresponding Author), Timo Pättikangas, Seppo Karttunen, K. Alm-Lytz, J. Verboncoeur, P. Mardahl

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

5 Citations (Scopus)

Abstract

The coupling of lower hybrid waves to the plasma is a crucial issue for efficient current drive in tokamaks. In this work, the coupling problem is attacked with a new tool in this context: an electromagnetic particle-in-cell (PIC) code, XOOPIC (Verboncoeur J P et al 1995 Comp. Phys. Comm. 87 199). A model for a grill with 32 waveguides is constructed using perfectly conducting walls. The wave propagation in the waveguides and the coupling to plasma is followed. The wave-plasma interaction is studied and the evolution of the launched spectrum is resolved in the near-field of the grill. The reflection coefficients in the individual waveguides are determined.

Original language	English
Pages (from-to)	1349-1362
Journal	Plasma Physics and Controlled Fusion
Volume	44
Issue number	7
DOIs	https://doi.org/10.1088/0741-3335/44/7/321
Publication status	Published - 2002
MoE publication type	A1 Journal article-refereed

Keywords

JET
plasma
fusion energy
fusion reactors
tokamak
lower hybrid current drive
lower hybrid grill
lower hybrid waves

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10.1088/0741-3335/44/7/321

Cite this

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abstract = "The coupling of lower hybrid waves to the plasma is a crucial issue for efficient current drive in tokamaks. In this work, the coupling problem is attacked with a new tool in this context: an electromagnetic particle-in-cell (PIC) code, XOOPIC (Verboncoeur J P et al 1995 Comp. Phys. Comm. 87 199). A model for a grill with 32 waveguides is constructed using perfectly conducting walls. The wave propagation in the waveguides and the coupling to plasma is followed. The wave-plasma interaction is studied and the evolution of the launched spectrum is resolved in the near-field of the grill. The reflection coefficients in the individual waveguides are determined.",

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T1 - Electromagnetic particle-in-cell simulations of a lower hybrid grill

AU - Rantamäki, Karin

AU - Pättikangas, Timo

AU - Karttunen, Seppo

AU - Alm-Lytz, K.

AU - Verboncoeur, J.

AU - Mardahl, P.

PY - 2002

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AB - The coupling of lower hybrid waves to the plasma is a crucial issue for efficient current drive in tokamaks. In this work, the coupling problem is attacked with a new tool in this context: an electromagnetic particle-in-cell (PIC) code, XOOPIC (Verboncoeur J P et al 1995 Comp. Phys. Comm. 87 199). A model for a grill with 32 waveguides is constructed using perfectly conducting walls. The wave propagation in the waveguides and the coupling to plasma is followed. The wave-plasma interaction is studied and the evolution of the launched spectrum is resolved in the near-field of the grill. The reflection coefficients in the individual waveguides are determined.

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KW - plasma

KW - fusion energy

KW - fusion reactors

KW - tokamak

KW - lower hybrid current drive

KW - lower hybrid grill

KW - lower hybrid waves

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DO - 10.1088/0741-3335/44/7/321

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EP - 1362

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 7

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Electromagnetic particle-in-cell simulations of a lower hybrid grill

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Keywords

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