Paper 
Title 
Page 
MOPO066 
Simulation of the Transitional Process in Accelerating Sections by Equivalent Circuit Method 
145 

 S.V. Matsievskiy, V.I. Kaminskiy, Ya.V. Shashkov
MEPhI, Moscow, Russia



Nowadays linac accelerating RF systems design is usually done by the finite difference method. It provides high accuracy of calculations and freedom in topology choosing, but may draw considerable amounts of computer resources with long calculation times. Alternative to this method, equivalent circuit method exists. The basic idea of this method is to build a lumped element circuit, which with certain approximation acts as an original accelerating cell. It drastically reduces the number of equations to solve. This method is long known but usually only used for the particular accelerating structures when speed of calculation is a keyfactor. Present paper describes a way to numerically simulate transition processes in arbitrary coupled accelerating cells using the equivalent circuit method. This approach allows simulating transitional processes in accelerating structures significantly faster and allows doing so for structures with high quality factor and many cells  a hard task for conventional transient solvers based on the finite difference method.



Poster MOPO066 [0.519 MB]


DOI • 
reference for this paper
※ https://doi.org/10.18429/JACoWLINAC2018MOPO066


About • 
paper received ※ 23 August 2018 issue date ※ 18 January 2019 

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