Electron Density Dependence of Cyclotron Harmonic Radiation from a Plasma
- 5 July 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 139 (1A), A63-A67
- https://doi.org/10.1103/physrev.139.a63
Abstract
Simultaneous measurements of electron density and radiation emitted near harmonics of the electron cyclotron frequency have been made with a microwave cavity coaxial with a low-pressure argon discharge in a magnetic field. The dependence of the line position and width on electron density is in reasonable agreement with recent calculations made of the spectrum of electrostatic waves excited by fast electrons. The intensity of the radiation increased rapidly with electron density, and no radiation was observable unless the maximum hybrid frequency in the column was close to or greater than the frequency of observation. It is shown that axial variations in electron density account for nonuniform emission of radiation along the discharge.Keywords
This publication has 9 references indexed in Scilit:
- Excitation of Electrostatic Waves Near Electron Cyclotron Harmonic FrequenciesPhysical Review B, 1965
- Wide-Range Microwave Spectroscopy of Noise Radiation from MagnetoplasmasReview of Scientific Instruments, 1964
- Excitation of Longitudinal Plasma Oscillations Near Electron Cyclotron HarmonicsPhysical Review Letters, 1964
- Microwave Determination of Average Electron Energy and Density in He–Ne DischargesJournal of Applied Physics, 1964
- Microwave Radiation from a Plasma in a Magnetic Field (I)Journal of the Physics Society Japan, 1964
- Microwave Emission and Absorption at Cyclotron Harmonics of a Warm PlasmaPhysical Review Letters, 1962
- Generation of harmonics of the electron-gyrofrequency in a penning dischargeJournal of Nuclear Energy. Part C, Plasma Physics, Accelerators, Thermonuclear Research, 1962
- Waves in a Plasma in a Magnetic FieldPhysical Review B, 1958
- Microwave and Metre Wave Radiation from the Positive Column of a Gas DischargeAustralian Journal of Physics, 1955