• J.M. Maus, U. Bartz, R.A. Jameson, N. Mueller, A. Schempp
  IAP, Frankfurt am Main

For the development of high energy and high duty cycle RFQs accurate particle dynamic simulation tools are important optimize designs especially in high current applications. To describe the external fields in RFQs the Poisson equation has to be solved taking the boundary conditions into account. In the newly developed subroutines this is done by using a finite difference method on a grid. The results of this improvement are shown and compared to the old two term and multipol expansions.