A numerical study of beam wave interaction devices using the transmission line modelling (TLM) method

摘要

The suitability of the transmission line modelling method for studying field-particle interaction devices is assessed through an example of a simple two-cavity klystron amplifier. Two separate numerical studies are presented, covering both beam bunching in the buncher cavity and field generation in the catcher cavity. Also addressed are the possibility of modelling the effect of the finite thickness of the cavity wall and beam Coupling. The modelling of these practical aspects has not only resulted in some important insights into the Field-particle interaction problem, but also demonstrated that the computer code developed is a porwerful and Varsatile design tool.