Cyclotron harmonic lines in magnetic fluctuations of spiralling electrons in plasmas
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics, University of California, Los Angeles, California 90024-1547 (United States)
The magnetic fluctuation spectrum in a magnetoplasma containing energetic electrons is observed to exhibit many lines at the cyclotron harmonics ([omega]=[ital n][omega][sub [ital c][ital e]], [ital n]=1. . .15). It is shown that these fluctuations are neither due to cyclotron radiation nor due to velocity-space instabilities but due to coherent solenoidal fields produced by electron cyclotron orbits and excited by thermal fluctuations. Such line spectra, observed in discharges and beam-plasma systems, may be useful for precise magnetic field diagnostics in plasmas.
- OSTI ID:
- 6879953
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:7; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320 -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
700380* -- Elementary & Classical Processes in Plasmas-- (1992-)
BEAM-PLASMA SYSTEMS
CONFIGURATION
CYCLOTRON HARMONICS
DATA
ELECTRIC COILS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
EQUIPMENT
EXPERIMENTAL DATA
FERMIONS
FLUCTUATIONS
HARMONICS
INFORMATION
LEPTONS
MAGNETIC FIELDS
MAGNETIZATION
NUMERICAL DATA
OSCILLATIONS
PLASMA
PLASMA DIAGNOSTICS
SOLENOIDS
SPIRAL CONFIGURATION
TRAJECTORIES
USES
VARIATIONS
700320 -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
700380* -- Elementary & Classical Processes in Plasmas-- (1992-)
BEAM-PLASMA SYSTEMS
CONFIGURATION
CYCLOTRON HARMONICS
DATA
ELECTRIC COILS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRONS
ELEMENTARY PARTICLES
EQUIPMENT
EXPERIMENTAL DATA
FERMIONS
FLUCTUATIONS
HARMONICS
INFORMATION
LEPTONS
MAGNETIC FIELDS
MAGNETIZATION
NUMERICAL DATA
OSCILLATIONS
PLASMA
PLASMA DIAGNOSTICS
SOLENOIDS
SPIRAL CONFIGURATION
TRAJECTORIES
USES
VARIATIONS