Inverse mode conversion of ion Bernstein waves in tokamak plasmas

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859215· OSTI ID:6037577

Romero, H; Morales, G J ^[1]

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1. Department of Physics, University of California, Los Angeles, CA (USA)

The inverse linear mode conversion between an electrostatic ion Bernstein wave and an electromagnetic fast Alfven wave in tokamak plasmas is investigated using a self-adjoint system of equations of fourth order that includes cyclotron and Landau damping processes. Over a broad range of cases investigated, the reciprocity of the mode conversion coefficients between the ion Bernstein and fast waves is observed to hold, within numerical accuracy, even in the presence of strong cyclotron absorption. It is also found that strong bulk ion heating occurs at twice the cyclotron frequency for direct launching of an ion Bernstein wave into a plasma that contains no ionic species that are resonant at the fundamental cyclotron frequency.

• OSTI ID: 6037577
• Journal Information: Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 2:12; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ALFVEN WAVES
BERNSTEIN MODE
BOUNDARY CONDITIONS
BREMSSTRAHLUNG
CLOSED PLASMA DEVICES
CONVERSION
CYCLOTRON RADIATION
DAMPING
ELECTROMAGNETIC RADIATION
ELECTROSTATICS
ENERGY CONVERSION
HEATING
HYDROMAGNETIC WAVES
ION WAVES
LANDAU DAMPING
MATHEMATICAL MODELS
OSCILLATION MODES
PLASMA
PLASMA HEATING
PLASMA WAVES
RADIATIONS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES