Argonne National Laboratory

Fourier Spectral Simulations for Wake Fields in Conducting Cavities

TitleFourier Spectral Simulations for Wake Fields in Conducting Cavities
Publication TypeConference Paper
Year of Publication2007
AuthorsMin, MS, Chin, YH, Fischer, PF, Chae, Y, Chul, Y, Kim, KJ
Conference Name Particle Accelerator Conference (PAC07)
Conference LocationAlbuquerque, NM
Other NumbersANL/MCS-P1436-0607
AbstractWe investigate the Fourier spectral time-domain simulations applied to the wake field calculations in two-dimensional cylindrical structures. The scheme involves second-order explicit leap-frogging in time and the Fourier spectral approximation in space, which is obtained from simply replacing the spatial differentiation operator of the YEE scheme by the Fourier differentiation operator on non-staggered grids. This is a first step towards investigating high-order computational techniques with Fourier spectral method which is relatively simple to implement and enhancing its performance in comparison to the conventional lower-order method.