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 | |
| Publication status | Published - Jan 1 1988 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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ICRF heating analysis on ASDEX plasmas. / Itoh, Sanae; Itoh, Kimitaka; Fukuyama, Atsushi; Morishita, Takayuki; Steinmetz, Karl; Noterdaeme, Jean M.
In: Japanese Journal of Applied Physics, Vol. 27, No. 10 R, 01.01.1988, p. 1947-1959.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - ICRF heating analysis on ASDEX plasmas
AU - Itoh, Sanae
AU - Itoh, Kimitaka
AU - Fukuyama, Atsushi
AU - Morishita, Takayuki
AU - Steinmetz, Karl
AU - Noterdaeme, Jean M.
PY - 1988/1/1
Y1 - 1988/1/1
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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U2 - 10.1143/JJAP.27.1947
DO - 10.1143/JJAP.27.1947
M3 - Article
AN - SCOPUS:0024092402
VL - 27
SP - 1947
EP - 1959
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 10 R
ER -