Preliminary design of a Rapid Cycling Synchrotron for the EURISOL Beta-Beam Facility

General considerations concerning the optical design of the Rapid Cycling Synchrotron (RCS) for the Beta Beam facility have been presented on the occasion of the two Beta Beam task meetings held at CERN in April 2005 and at Saclay in last October [1].
Following the trends identified during these meetings and taking into account the updated baseline scenario described in [2], we present here the main characteristics of a RCS pulsed at 10 Hz and capable of accelerating ion beams to energies corresponding to 3.2 GeV protons (magnetic rigidity of 13.4 T.m). A parameter list for the main magnets and for the accelerating system is proposed and first simulation results of the multiturn injection and the fast extraction schemes are given.