Abstract
When a tenuous electron stream gyrates around the field lines of a static magnetic field in the presence of a stationary plasma, electromagnetic waves are excited which propagate perpendicular to the magnetic field. Previous theoretical studies involved the assumption that these excited waves are almost longitudinal (quasistatic approximation). Such an assumption is not made in this analysis. It is shown that the excited waves have the electron cyclotron frequency or some multiple thereof. The electric intensity vector rotates in a plane perpendicular to the magnetic field; the phase velocities are of the order of, or exceed, the velocity of light, and for certain plasma-beam systems lower harmonics of the electron cyclotron frequency cannot be excited. Expressions are given for the rate of growth of the waves as a function of the plasma-beam parameters and the harmonic number.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
