Periodic pulling of the drift instability in a thermal plasma
Technical Report
·
OSTI ID:6538532
The primary objective of this thesis is to show that a mode of oscillation in a plasma can be represented by a van der Pol oscillator. The results of an experiment performed on a drift wave in a Q-machine are interpreted in terms of a mechanism developed by Lashinsky. The mechanism, called periodic pulling, predicts a specific kind of spectrum for certain experimental conditions when a van der Pol oscillator is perturbed by a small signal. The observed spectrum, along with other observations, lends credence to the van der Pol oscillator model of a plasma mode.
- Research Organization:
- Maryland Univ., College Park (USA). Inst. for Fluid Dynamics and Applied Mathematics
- OSTI ID:
- 6538532
- Report Number(s):
- DOE/NBM-7008504; TN-BN-642; ON: DE87008504
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BESSEL FUNCTIONS
COUPLING
DIFFERENTIAL EQUATIONS
DISPERSION RELATIONS
DISTURBANCES
DRIFT INSTABILITY
ELECTRONIC EQUIPMENT
EQUATIONS
EQUIPMENT
FREQUENCY MODULATION
FUNCTIONS
HARMONIC OSCILLATORS
HARMONICS
INSTABILITY
MODULATION
NONLINEAR PROBLEMS
OSCILLATION MODES
OSCILLATIONS
OSCILLATORS
PLASMA DRIFT
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BESSEL FUNCTIONS
COUPLING
DIFFERENTIAL EQUATIONS
DISPERSION RELATIONS
DISTURBANCES
DRIFT INSTABILITY
ELECTRONIC EQUIPMENT
EQUATIONS
EQUIPMENT
FREQUENCY MODULATION
FUNCTIONS
HARMONIC OSCILLATORS
HARMONICS
INSTABILITY
MODULATION
NONLINEAR PROBLEMS
OSCILLATION MODES
OSCILLATIONS
OSCILLATORS
PLASMA DRIFT
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES