GdfidL: a finite difference program with reduced memory and CPU usage

Author

Bruns, W.

Author_Institution

Tech. Univ. Berlin, Germany

Volume

2

fYear

1997

fDate

12-16 May 1997

Firstpage

2651

Abstract

Two new field solvers based on the FDTD algorithm are described. One solver computes resonant fields in loss-free structures, the other computes time dependent fields, scattering parameters and wake potentials in lossy or loss-free structures. The program uses linked lists instead of three dimensional arrays to model the computational volume. The main advantage of this approach is: Grid cells are only needed in regions, which are not filed with electric or magnetic conducting materials. This may result in an appreciable reduction of memory and CPU usage. The modeling via the linked lists is described in detail and some examples of calculated realistic geometries are given

Keywords

beam handling techniques; finite difference methods; high energy physics instrumentation computing; particle accelerators; FDTD algorithm; GdfidL program; computational volume; field solvers; finite difference program; grid cells; linked lists; loss-free structures; lossy structures; particle accelerators; reduced CPU usage; reduced memory; resonant fields; scattering parameters; time dependent fields; wake potentials; Computational modeling; Conducting materials; Dielectric materials; Difference equations; Eigenvalues and eigenfunctions; Finite difference methods; Geometry; Maxwell equations; Resonance; Scattering parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.751304

Filename

751304