Title :
Effect of plasma on efficiency enhancement in a high power relativistic backward wave oscillator
Author :
Sawhney, Ranjana ; Maheshwari, K.P. ; Choyal, Y.
Author_Institution :
Sch. of Phys., Devi Ahilya Univ., Indore, India
fDate :
12/1/1993 12:00:00 AM
Abstract :
A linear theory of the excitation of electromagnetic waves in a plasma-filled backward-wave oscillator driven by an intense relativistic electron beam is presented. It is found that the spatial growth rate of backward-wave instability exhibits a resonant increase for a particular value of fill-plasma density. Results are compared to the results of an experiment by K. Minami et al. (1988) on a high-power backward-wave oscillator
Keywords :
backward wave tubes; plasma filled waveguides; plasma-beam interactions; efficiency enhancement; electromagnetic waves; excitation; fill-plasma density; high power relativistic backward wave oscillator; intense relativistic electron beam; linear theory; plasma-filled backward-wave oscillator; spatial growth rate; Electromagnetic scattering; Electromagnetic waveguides; Electron beams; Oscillators; Plasma density; Plasma devices; Plasma waves; Power generation; Resonance; Space charge;
Journal_Title :
Plasma Science, IEEE Transactions on
