ICRF heating analysis on ASDEX plasmas

Sanae I. Ito; Kimitaka Itoh; Atsushi Fukuyama; Takayuki Morishita; Karl Steinmetz; Jean M. Noterdaeme

doi:10.1143/JJAP.27.1947

ICRF heating analysis on ASDEX plasmas

Sanae I. Ito, Kimitaka Itoh, Atsushi Fukuyama, Takayuki Morishita, Karl Steinmetz, Jean M. Noterdaeme

Trustee(Vice President)

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

1 Citation (Scopus)

Abstract

ICRF (ion cyclotron range of frequencies) waves heating in an ASDEX tokamak are analyzed. The excitation, propagation and absorption are studied by using a global wave code. This analysis is combined with a Fokker-Planck code. The waveform in the plasma, the loading resistance and the reactance of the antenna are calculated for both the minority ion heating and the second harmonlc resonance heating. Attention is given to the change of the antenna loading associated with the L/H transition. Optimum conditions for the loading are discussed. In the minority heating case, the tail generation and thermalization are analyzed. Spatial profiles of the tail-ion temperature and the power transferred to the bulk electrons and ions are obtained. Central as well as off-central heating cases are investigated. The effect of the reactive electric field is discussed in connection with rf losses and impurity production.

Original language	English
Pages (from-to)	1947-1959
Number of pages	13
Journal	Japanese journal of applied physics
Volume	27
Issue number	10 R
DOIs	https://doi.org/10.1143/JJAP.27.1947
Publication status	Published - Oct 1988

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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title = "ICRF heating analysis on ASDEX plasmas",

abstract = "ICRF (ion cyclotron range of frequencies) waves heating in an ASDEX tokamak are analyzed. The excitation, propagation and absorption are studied by using a global wave code. This analysis is combined with a Fokker-Planck code. The waveform in the plasma, the loading resistance and the reactance of the antenna are calculated for both the minority ion heating and the second harmonlc resonance heating. Attention is given to the change of the antenna loading associated with the L/H transition. Optimum conditions for the loading are discussed. In the minority heating case, the tail generation and thermalization are analyzed. Spatial profiles of the tail-ion temperature and the power transferred to the bulk electrons and ions are obtained. Central as well as off-central heating cases are investigated. The effect of the reactive electric field is discussed in connection with rf losses and impurity production.",

author = "Ito, {Sanae I.} and Kimitaka Itoh and Atsushi Fukuyama and Takayuki Morishita and Karl Steinmetz and Noterdaeme, {Jean M.}",

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AU - Ito, Sanae I.

AU - Itoh, Kimitaka

AU - Fukuyama, Atsushi

AU - Morishita, Takayuki

AU - Steinmetz, Karl

AU - Noterdaeme, Jean M.

PY - 1988/10

Y1 - 1988/10

N2 - ICRF (ion cyclotron range of frequencies) waves heating in an ASDEX tokamak are analyzed. The excitation, propagation and absorption are studied by using a global wave code. This analysis is combined with a Fokker-Planck code. The waveform in the plasma, the loading resistance and the reactance of the antenna are calculated for both the minority ion heating and the second harmonlc resonance heating. Attention is given to the change of the antenna loading associated with the L/H transition. Optimum conditions for the loading are discussed. In the minority heating case, the tail generation and thermalization are analyzed. Spatial profiles of the tail-ion temperature and the power transferred to the bulk electrons and ions are obtained. Central as well as off-central heating cases are investigated. The effect of the reactive electric field is discussed in connection with rf losses and impurity production.

AB - ICRF (ion cyclotron range of frequencies) waves heating in an ASDEX tokamak are analyzed. The excitation, propagation and absorption are studied by using a global wave code. This analysis is combined with a Fokker-Planck code. The waveform in the plasma, the loading resistance and the reactance of the antenna are calculated for both the minority ion heating and the second harmonlc resonance heating. Attention is given to the change of the antenna loading associated with the L/H transition. Optimum conditions for the loading are discussed. In the minority heating case, the tail generation and thermalization are analyzed. Spatial profiles of the tail-ion temperature and the power transferred to the bulk electrons and ions are obtained. Central as well as off-central heating cases are investigated. The effect of the reactive electric field is discussed in connection with rf losses and impurity production.

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