Nonlinear wave interactions generate high-harmonic cyclotron emission from fusion-born protons during a KSTAR ELM crash [PDF]
, 2018 The radio frequency detection system on the KSTAR tokamak has exceptionally high spectral and temporal resolution. This enables measurement of previously undetected fast plasma phenomena in the ion cyclotron range of frequencies.
Chapman, B. +10 more
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Quasilinear evolution of the weakly relativistic electron cyclotron maser instability [PDF]
, 1997 This paper presents a quasilinear analysis of the relativistic electron cyclotron maser instability in which the self-consistent set of equations governing the evolution of the particle distribution function and the energy spectra of unstable waves is ...
L. F. Ziebell, Ziebell, Luiz Fernando
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The propagation and damping of slow magnetoacoustic waves in the solar atmosphere [PDF]
, 2012 The propagation and damping of slow magnetoacoustic waves in the solar atmosphere is investigated, with particular emphasis placed on waves with periodicities of five minutes. The basic model of a uniform temperature loop is extended by the addition of
Owen, Nicholas Robert
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Interpretation of ion cyclotron emission from sub-Alfvénic beam-injected ions heated plasmas soon after L-H mode transition in EAST [PDF]
Ion cyclotron emission (ICE) at deuterium ion cyclotron harmonics, driven by sub-Alfvénic beam-injected deuterium ions, has been observed by the high-frequency B-dot probe in the EAST tokamak.
Dendy, R. +23 more
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Ion-beam-driven resonant ion cyclotron instability [PDF]
, 1975 The resonant ion-beam-driven electrostatic ion cyclotron instability is identified. Measured dispersion relation and onset vs. beam energy and density agree with numerical calculations based on a theory which includes beam acoustic terms. After amplitude
Seiler, S.W. +3 more
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The electrostatic ion-cyclotron instability-a two-dimensional potential relaxation instability
, 1985 An experimental investigation shows that the electrostatic ion-cyclotron instability, driven by an electron current to a positively biased collector, is accompanied by strong coherent two-dimensional fluctuations of the plasma potential in front of the ...
Popa, G. +3 more
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Alfvenic behavior of alpha particle driven ion cyclotron emission in TFTR
, 1995 Ion cyclotron emission (ICE) has been observed during D-T discharges in the Tokamak Fusion Test Reactor (TFTR), using rf probes located near the top and bottom of the vacuum vessel.
Cauffman, S. +2 more
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Ion-Beam-Excited, Electrostatic, Ion Cyclotron Instability
, 1977 The stability limits of the ion‐beam‐excited, electrostatic, ion cyclotron instability were investigated in a Q‐machine plasma where the electrons could be heated by microwaves. In agreement with theory, the beam energy necessary for excitation decreased
Juul Rasmussen, Jens +5 more
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THE CYCLOTRON RESONANCE INSTABILITY WITH NEGATIVE MASS IONS [PDF]
, 1961 Both the effect of resonant coupling of ion cyclotron motion to electron plasma oscillations, as previously discussed by Harris, and the effect of a negative radial gradient in a magnetic mirror field, the so-called "negative mass'' effect, were combined
Fowler, T.K., Harris, E.G.
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Ion cyclotron instability triggered by drifting minor ion species: Cascade effect and exact results [PDF]
, 2004 On the basis of bi-Maxwellian velocity distribution functions it has been recently shown that the combined effect of heavy ion thermal anisotropy and drift velocity can trigger ion-cyclotron instabilities beyond the corresponding heavy ion-cyclotron ...
Valdivia Hepp, Juan +2 more
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