`Quasi-local' wave equations in toroidal geometry with applications to fast wave propagation and absorption at high harmonics of the ion cyclotron frequency

2002 ◽  
Vol 44 (11) ◽  
pp. 2423-2443 ◽  
Author(s):  
Marco Brambilla
Keyword(s):  
Wave Propagation ◽  
Wave Equations ◽  
Cyclotron Frequency ◽  
Fast Wave ◽  
High Harmonics ◽  
Ion Cyclotron ◽  
Local Wave ◽  
Toroidal Geometry

scholarly journals Parametric decay in the edge plasma of ASDEX during fast wave heating in the ion cyclotron frequency range

1988 ◽  
Vol 28 (9) ◽  
pp. 1603-1609 ◽  
Author(s):  
R. Van Nieuwenhove ◽  
G. Van Oost ◽  
J.-M. Noterdaeme ◽  
M. Brambilla ◽  
J. Gernhardt ◽  
...  
Keyword(s):  
Cyclotron Frequency ◽  
Edge Plasma ◽  
Fast Wave ◽  
Frequency Range ◽  
Parametric Decay ◽  
Wave Heating ◽  
Ion Cyclotron

Fast wave damping at the second harmonic of the ion cyclotron frequency

1972 ◽  
Vol 40 (2) ◽  
pp. 141-142 ◽  
Author(s):  
J.E. Cato ◽  
M. Kristiansen ◽  
M.O. Hagler ◽  
C.N. Watson-Munro
Keyword(s):  
Cyclotron Frequency ◽  
Second Harmonic ◽  
Fast Wave ◽  
Wave Damping ◽  
Ion Cyclotron

Magnetohydrodynamic wave propagation from a localized source including hall effect

1968 ◽  
Vol 263 (1137) ◽  
pp. 119-147 ◽  
Keyword(s):  
Wave Propagation ◽  
Wave Amplitude ◽  
Cyclotron Frequency ◽  
Asymptotic Expression ◽  
Wave Frequency ◽  
Laboratory Plasma ◽  
Magnetohydrodynamic Wave ◽  
Localized Source ◽  
Ion Cyclotron ◽  
Finite Electrical Conductivity

Lighthill’s theorem on magnetohydrodynamic wave propagation from a localized source gives an asymptotic expression for the wave amplitude at large distance from the source and this theorem is applied to a laboratory plasma. Attention is focused mainly on conditions where the Alfven speed is large compared with the sound speed and where the wave frequency is of the same order as the ion cyclotron frequency. These conditions are also typical of certain natural plasmas. The manner in which the wave amplitude depends on the direction of propagation and on the ratio of the wave frequency to the ion cyclotron frequency is examined and illustrated by graphs which also cover a range of source sizes. An extension is made into a two-fluid theory such that electron inertia and electron source terms can be included and the effect of finite electrical conductivity is considered.

scholarly journals Fast-Wave Resonances near the Ion Cyclotron Frequency

1979 ◽  
Vol 7 (1) ◽  
pp. 2-5 ◽  
Author(s):  
Richard E. Dollinger ◽  
M. Kristiansen ◽  
Marion O. Hagler
Keyword(s):  
Cyclotron Frequency ◽  
Fast Wave ◽  
Ion Cyclotron

FAST-WAVE ION CYCLOTRON WAVE PROPAGATION AND COUPLING EXPERIMENTS ON ELMO BUMPY TORUS SCALE

1982 ◽  
pp. 383-390 ◽  
Author(s):  
J.H. Mullen ◽  
T.L. Owens ◽  
A.L. Henderson ◽  
F.W. Baity ◽  
O.C. Eldridge
Keyword(s):  
Wave Propagation ◽  
Fast Wave ◽  
Ion Cyclotron

Simulation of fast wave current drive in tokamaks in the ion cyclotron frequency range

2002 ◽  
Vol 42 (9) ◽  
pp. 1085-1093 ◽  
Author(s):  
R. Bilato ◽  
M. Brambilla ◽  
I. Pavlenko ◽  
F. Meo
Keyword(s):  
Cyclotron Frequency ◽  
Current Drive ◽  
Fast Wave ◽  
Frequency Range ◽  
Ion Cyclotron

scholarly journals Compressional Alfvén Wave Propagation Below Ion Cyclotron Frequency

1968 ◽  
Vol 21 (2) ◽  
pp. 129 ◽  
Author(s):  
RC Cross ◽  
JA Lehane
Keyword(s):  
Wave Propagation ◽  
Cyclotron Resonance ◽  
Cyclotron Frequency ◽  
Cutoff Frequency ◽  
Compressional Wave ◽  
Alfven Wave ◽  
Alfvén Waves ◽  
Ion Cyclotron Resonance ◽  
Wave Measurements ◽  
Ion Cyclotron

When the compressional wave cutoff frequency is below ion cyclotron frequency both compressional and torsional Alfven waves may be present simultaneously. Oompressional wave measurements in this regime are particularly important because of their relevance to certain ion cyclotron resonance heating experiments. This paper extends the work of others in this important regime.

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