BEAM STACKING FOR HIGH INTENSITY PULSED PROTON BEAM WITH FFAG

The reuirement of extremely high intensity pulsed proton beam with low spill rate has apeared from users in the field of spallation neutron source. To realize the beam satisfies this condition, beam stacking at extraction orbit in FFAG ring has been considered. Feasibility studies of rf stacking using the KURRI FFAG main ring are under consideration. Prior to these studies, beam simulations have been done.