Cyclotron-Cherenkov and Cherenkov instabilities
- California Univ., Los Angeles, CA (USA). Dept. of Physics
The effect of the conventional Cherenkov instability on the cyclotron-Cherenkov maser is investigated for the case of a relativistic electron beam propagating along a background magnetic field in a dielectric using particle simulations. Both Cherenkov and cyclotron-Cherenkov instabilities are excited when the phase velocity of light in the dielectric is less than the beam velocity. It is demonstrated in the high-power regime, where the cyclotron-Cherenkov mode has the higher growth rate, that the Cherenkov mode has little effect on the nonlinear efficiency of the cyclotron-Cherenkov mode. High efficiency is possible, affirming previous predictions based on single mode calculations. The effect of beam momentum spread is studied.
- OSTI ID:
- 6398974
- Journal Information:
- IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA), Vol. 18:3; ISSN 0093-3813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHERENKOV RADIATION
WAVE PROPAGATION
MASERS
CYCLOTRON INSTABILITY
RELATIVISTIC PLASMA
CALCULATION METHODS
ELECTRON BEAMS
EXPERIMENTAL DATA
MAGNETIC FIELDS
MODE SELECTION
NONLINEAR PROBLEMS
RELATIVISTIC BEAM INJECTION
AMPLIFIERS
BEAM INJECTION
BEAMS
DATA
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
INFORMATION
INSTABILITY
LEPTON BEAMS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
NUMERICAL DATA
PARTICLE BEAMS
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
RADIATIONS
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