Modelling a Micromegas

Field map

Contrary to finite element calculations where the field is interpolated in a field map supplied by an external program, he field is calculated on-the-fly when using boundary elements.

The boundary element program currently used by Garfield, neBEM, is open source and linked with Garfield. Currently, no interface exists for Garfield++, which is why this example uses Garfield.

Modeling

The technique for calculating electric fields using neBEM is explained in

• slides of the RD51 "simulation school".

Associated files:

• all plots: Garfield initialisation file for screen and slides, to be placed in the working directory;
• page 9: input file and drawings for the dielectric ridge;
• pages 10-12: input file, drawings for a non-periodic layout and drawings for a layout with 3 periodic copies;
• pages 18-19: input file,

Last updated on 1/9/11.