MAGNET SIMULATIONS FOR MEDICAL FFAG

In the frame of the RACCAM project (this conference) mathematical tools have been developed for magnetic field symbolic calculations. One of the main methods to generate the non linear magnetic field B0(r/r0) k needed for FFAG accelerators, consists in a distribution of conductors on a flat pole. This can make the machine more compact. The main field is produced by a main coil, then conductors introduce the non linearity. This is a simple application of the Biot and Savart law that can apply to a large variety of practical cases. This calculation tools has been set up as a Mathematica function.