Beam-Plasma Interaction with Transverse Modulation
- 1 November 1967
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 38 (12) , 4767-4779
- https://doi.org/10.1063/1.1709218
Abstract
This paper describes experimental observations of electron beam‐plasma interaction in low‐pressure mercury‐vapor discharges. Comprehensive data have been obtained of rf growth, phase velocity, axial and radial electric field profiles in the interaction region, and Faraday rotation, for the case of transverse modulation, i.e., for growth in the first azimuthally‐varying mode (m = 1). The work complements previous parallel studies of the axisymmetric mode (m = 0) made with axial modulation. The results are compared with cold‐ and warm‐plasma theories of the interaction. It is concluded that the warm‐plasma theory gives a satisfactory approximation to the experimental results, and that the remaining discrepancies are due to lack of sharpness of the experimental beam edge.This publication has 7 references indexed in Scilit:
- Observations of a ``Hose'' Instability of an Electron Beam in a PlasmaJournal of Applied Physics, 1967
- Electron-Beam-Probing Studies of Beam—Plasma InteractionsJournal of Applied Physics, 1967
- Beam Probing of rf Beam/Plasma InteractionsJournal of Applied Physics, 1965
- Electron Beam Probing of PlasmasReview of Scientific Instruments, 1965
- Transverse Field Interactions of a Beam and PlasmaPhysical Review Letters, 1963
- Oscillations and Noise in Low-Pressure DC DischargesProceedings of the IRE, 1961
- Interaction of a Modulated Electron Beam with a PlasmaProceedings of the IRE, 1961