Résumé du preprint DAPNIA-04-278

DAPNIA-04-278
Developments in the ray-tracing code Zgoubi for 6-D multiturn tracking in FFAG rings Developments in the ray-tracing code Zgoubi for 6-D multiturn tracking in FFAG rings
F. Lemuet, F. Méot
A geometrical method for 3-D modeling of the magnetic field in scaling and non-scaling FFAG magnets has been installed in the ray-tracing code Zgoubi. The method  in particular allows a good simulation of   field fall-offs and of merging fields in configurations of  neighboring large magnets, while  using realistic models of magnetic fields. That yields an efficient tool for lattice design  and  optimizations, and for 6-D tracking studies.
It  is applied for  illustration  to the simulation of an acceleration cycle in a 150~MeV radial sector proton FFAG.
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