Slow wave cyclotron instability in dielectric loaded waveguide of rectangular cross-section. Final report

Technical Report · Sun May 18 00:00:00 EDT 1980

OSTI ID:6933382

Ganguly, A K; Chu, K R

Slow wave cyclotron instability in dielectric loaded waveguides driven by an anisotropic velocity distribution is considered. The spatial growth rate of the radiation field is calculated by deriving a dispersion relation of the waveguide modes in the presence of a weak electron beam. It is shown that broad band amplification is possible in such structures. Bandwidth in excess of 60% is obtained for a 'cold' beam. The bandwidth decreases with increase in the velocity spread of the electrons. At 5% velocity spread, the bandwidth decreases to 12%. The dependence of the gain and bandwidth on other material and electron beam parameters as well as the applied magnetic field is discussed.

• Research Organization: Naval Research Lab., Washington, DC (USA)
• OSTI ID: 6933382
• Report Number(s): AD-A-086776
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
MASERS
WAVEGUIDES
CYCLOTRON INSTABILITY
ANISOTROPY
BESSEL FUNCTIONS
CYCLOTRON RESONANCE
DISPERSION RELATIONS
ELECTRON BEAMS
GAIN
MAGNETIC FIELDS
MAXWELL EQUATIONS
RELATIVITY THEORY
STABILITY
VELOCITY
WAVE PROPAGATION
AMPLIFIERS
BEAMS
DIFFERENTIAL EQUATIONS
ELECTRONIC EQUIPMENT
EQUATIONS
EQUIPMENT
FIELD THEORIES
FUNCTIONS
GENERAL RELATIVITY THEORY
INSTABILITY
LEPTON BEAMS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
RESONANCE
420300* - Engineering- Lasers- (-1989)