论文信息 - RECENT DEVELOPMENTS FOR EFFICIENT 3D SPACE CHARGE COMPUTATIONS BASED ON ADAPTIVE MULTIGRID DISCRETIZATIONS

RECENT DEVELOPMENTS FOR EFFICIENT 3D SPACE CHARGE COMPUTATIONS BASED ON ADAPTIVE MULTIGRID DISCRETIZATIONS

Efficient and accurate space-charge computations are essential for the design of high-brightness charged particle sources. Recently a new adaptive meshing strategy based on multigrid was implemented in GPT and the capabilities were demonstrated. This new meshing scheme uses the solution of an intermediate step in the multigrid algorithm itself to define optimal mesh line positions. In this paper we discuss further developments of this adaptive meshing strategy. We compare the new algorithm with the meshing scheme of GPT where the mesh line positions are based upon the projected charge density.

G. Poplau | U. van Rienen

[1] U. van Rienen,et al. ADAPTIVE SPACE-CHARGE MESHING IN THE GENERAL PARTICLE TRACER CODE , 2011 .

[2] G. Poplau,et al. EFFICIENT 3D SPACE CHARGE CALCULATIONS WITH ADAPTIVE DISCRETIZATION BASED ON MULTIGRID , 2010 .

[3] G. Poplau,et al. Multigrid algorithms for the fast calculation of space-charge effects in accelerator design , 2004, IEEE Transactions on Magnetics.