Accession Number : ADA116507

Title :   Dispersion Characteristics of a Beam-Driven Cylindrical Waveguide with Dielectric Liner.

Descriptive Note : Technical memo.,

Corporate Author : HARRY DIAMOND LABS ADELPHI MD

Personal Author(s) : Dockery,G Daniel

PDF Url : ADA116507

Report Date : Apr 1982

Pagination or Media Count : 20

Abstract : The dispersion relation for a dielectric-lined, cylindrical waveguide filled with an electron beam is derived by using Maxwell's equations and the Lorentz force law. By using a no-beam approximation, the fundamental (TM01) mode is calculated with parameters resembling those expected in the Harry Diamond Laboratories Cerenkov device. Each of these parameters (waveguide size, dielectric thickness, and dielectric constant) is then varied to illustrate their effects on the dispersion curve. Higher TM0n modes (through TM06) are calculated to show how it is possible to couple to higher modes by using appropriate dielectric thicknesses. (Author)

Descriptors :   *ELECTRON BEAMS, *WAVEGUIDES, *LININGS, *DIELECTRIC PROPERTIES, MILLIMETER WAVES, CYLINDRICAL BODIES, THICKNESS, SIZES(DIMENSIONS), DISPERSING, MAXWELLS EQUATIONS, DISPERSION RELATIONS, LORENTZ FORCE, LABORATORY TESTS, CERENKOV RADIATION

Subject Categories : Electrical and Electronic Equipment
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE