CONFIGURABLE FIELD MAGNETS FOR A PROTON BEAM DYNAMICS RD RING

摘要

Magnets with many independently-powered coils can provide nearly arbitrary combinations of multipoles up to a certain order. This paper gives examples of field quality in such an "omni-magnet", which is normal-conducting and simulated with Poisson. Since the magnets also have quite large apertures they may be used to make a general-purpose FFAG and synchrotron test ring for beam dynamics studies. This could use the 3 MeV H~- beam from the RAL proton Front End Test Stand (FETS) and outline ring parameters are given for that situation.