Title :
Nonlinear interactions between electrons and RF waves in crossed electric and magnetic fields
Author :
Chan, Chung ; Ye, John Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
fDate :
12/1/1992 12:00:00 AM
Abstract :
A laboratory experiment has been initiated to study nonlinear electron-wave interactions. In this experiment, the interaction between a guided RF wave and an electron beam is investigated using a large crossed field amplifier. The electron beam is injected through externally imposed crossed electric and magnetic fields. The large-amplitude RF wave is guided by a serpentine slow wave structure and travels at a phase velocity approximately equal to the average velocity of the electron beam. The formation of long-wavelength density structures has been proposed to affect the emission characteristics of the RF wave itself. Possible applications of the experiment in space plasmas are discussed
Keywords :
plasma density; plasma waves; RF waves; crossed electric and magnetic fields; crossed field amplifier; electrons; emission characteristics; guided large-amplitude wave; long-wavelength density structures; nonlinear electron-wave interactions; phase velocity; serpentine slow wave structure; space plasmas; Charge carrier processes; Electron beams; Laboratories; Magnetic fields; Plasma applications; Plasma density; Plasma properties; Radio frequency; Radiofrequency amplifiers; Space exploration;
Journal_Title :
Plasma Science, IEEE Transactions on
