Open AccessStudy on the interaction between a sheet electron beam and the slow-wave structure for dielectric-loaded rectangular Cerenkov maser
Author(s) -
Hongzhi Wang,
Ding Zhao,
Yong Wang
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.094102
Subject(s) - maser , dielectric , cathode ray , beam (structure) , dispersion relation , electron , optics , physics , dispersion (optics) , materials science , atomic physics , optoelectronics , quantum mechanics
A three-dimensional model for the interaction between a sheet electron beam and the slow-wave structure of dielectric-loaded rectangular Cerenkov maser is proposed. Based on this model, the hybrid-mode dispersion equation and its analytical solution are derived by using the field-match method and the Borgnis function method. Through numerical calculations, the effects of dielectric layer thickness, beam voltage, current density, bean thickness and beam-dielectric layer gap on the linear growth rate are analyzed.