LINAC2018 - List of Authors (Shashkov, Ya.V.)

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 key-factor. 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/JACoW-LINAC2018-MOPO066
About •	paper received ※ 23 August 2018 paper accepted ※ 19 September 2018 issue date ※ 18 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPO045	Optimization of Dual Axis Asymmetric Cavity for Energy Recovery Linac	435
SPWR022	use link to see paper's listing under its alternate paper code
	Ya.V. Shashkov, A.M. Bulygin, M. Gusarova MEPhI, Moscow, Russia I.V. Konoplev JAI, Oxford, United Kingdom F. Marhauser JLab, Newport News, Virginia, USA A. Seryi SLAC, Menlo Park, California, USA
	Funding: The reported study was funded by RFBR according to the research project № 18-302-00990 Optimization of the dual axis asymmetric cavity was performed to minimize the ratio of the peak magnetic and electric fields values to the accelerating voltage, to increase the distance between operating and neighbouring modes as well as to reduce the manufacturing cost of the cavity. To reach the goals several solutions have been suggested bringing the ratios to the acceptable values and leading to simplification of the manufacturing of the structure.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO045
About •	paper received ※ 12 September 2018 paper accepted ※ 20 September 2018 issue date ※ 18 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

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 key-factor. 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/JACoW-LINAC2018-MOPO066

About •

paper received ※ 23 August 2018 paper accepted ※ 19 September 2018 issue date ※ 18 January 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPO045

Optimization of Dual Axis Asymmetric Cavity for Energy Recovery Linac

435

SPWR022

use link to see paper's listing under its alternate paper code

Ya.V. Shashkov, A.M. Bulygin, M. Gusarova
MEPhI, Moscow, Russia
I.V. Konoplev
JAI, Oxford, United Kingdom
F. Marhauser
JLab, Newport News, Virginia, USA
A. Seryi
SLAC, Menlo Park, California, USA

Funding: The reported study was funded by RFBR according to the research project № 18-302-00990
Optimization of the dual axis asymmetric cavity was performed to minimize the ratio of the peak magnetic and electric fields values to the accelerating voltage, to increase the distance between operating and neighbouring modes as well as to reduce the manufacturing cost of the cavity. To reach the goals several solutions have been suggested bringing the ratios to the acceptable values and leading to simplification of the manufacturing of the structure.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO045

About •

paper received ※ 12 September 2018 paper accepted ※ 20 September 2018 issue date ※ 18 January 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)