Parametric decay instabilities of the fast wave in the lower hybrid frequency regime
- Indian Inst. of Tech., New Delhi (India). Centre of Energy Studies
This paper presents three possible decay instabilities of the fast wave in the lower hybrid frequency regime. It has been considered that a fast wave may decay into a high-frequency, lower hybrid wave and a low-frequency wave, either the ion-Bernstein wave, ion-acoustic wave, or kinetic Alfven wave. Explicit expressions for growth rates, homogeneous thresholds, and convective thresholds have been given. Applications have been pointed out in tokamak plasmas during current drive experiments and magnetospheric plasmas. For example, for PLT tokamak parameters, the convective threshold for the decay instability of the fast wave into lower hybrid and ion acoustic waves comes out to be {approximately}180 W/cm{sup 2}.
- OSTI ID:
- 5857569
- Journal Information:
- IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 19:4; ISSN 0093-3813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PLASMA
DECAY INSTABILITY
ALFVEN WAVES
CONVECTION
CURRENT-DRIVE HEATING
EARTH MAGNETOSPHERE
EQUATIONS
INSTABILITY GROWTH RATES
ION ACOUSTIC WAVES
ION WAVES
LOWER HYBRID HEATING
PARAMETRIC INSTABILITIES
THRESHOLD ENERGY
TOKAMAK DEVICES
USES
CLOSED PLASMA DEVICES
EARTH ATMOSPHERE
ELECTRIC HEATING
ENERGY
ENERGY TRANSFER
HEAT TRANSFER
HEATING
HIGH-FREQUENCY HEATING
HYDROMAGNETIC WAVES
INSTABILITY
JOULE HEATING
MASS TRANSFER
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA WAVES
RESISTANCE HEATING
THERMONUCLEAR DEVICES
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700350 - Plasma Production
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