  A post-acceleration system based on the accelerators at CSNS (China
Spallation Neutron Source) is proposed to build a super-beam facility for
neutrino physics. Two post-acceleration schemes, one using superconducting
dipole magnets in the main ring and the other using room-temperature magnets
have been studied, both to achieve the final proton energy of 128 GeV and the
beam power of 4 MW by taking 10% of the CSNS beam from the neutron source. The
main design features and the comparison for the two schemes are presented. The
CSNS super-beam facility will be very competitive in long-baseline neutrino
physics studies, compared with other super-beam facilities proposed in the
world.
