Excitation of quasielectrostatic waves in a laboratory magnetoplasma with weak spatial dispersion

Journal Article · Mon Aug 01 00:00:00 EDT 2005 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.72.026401· OSTI ID:20706323

Starodubtsev, Mikhail V; Kostrov, Alexander V; Nazarov, Vladimir V; Permitin, German V ^[1]

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1. Institute of Applied Physics, Russian Academy of Science, 46 Ulyanov Street, 603950 Nizhny Novgorod (Russian Federation)

Short-wavelength quasielectrostatic waves radiated by a small probe in a cold (T{sub e}{approx_equal}0.5 eV) laboratory magnetoplasma are studied in both the upper-hybrid (UH) and the lower-hybrid (LH) frequency ranges. Measured radiation patterns are characterized by resonance cones in the LH range and in the low-frequency part of the UH range (at {omega}<2{omega}{sub c}), while in its high-frequency part (at {omega}>2{omega}{sub c}), a beamed radiation along the external magnetic field is observed. An analysis reveals that the angular resonance is primarily limited by the phase effects caused by weak spatial dispersion.

• OSTI ID: 20706323
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevE.72.026401; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
EV RANGE
EXCITATION
FREQUENCY RANGE
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
MAGNETIC FIELDS
PLASMA
PLASMA WAVES
PROBES
RESONANCE
WAVELENGTHS