New Beam Distribution System

With construction of CSR and acceleration of proton at HIRFL, the existing beam handling system can not meet the requirements of nuclear physics experiments for more and more beam time. For this reason, a new beam distribution system based on time is being constructed. The new system not only deliuers beams to the new terminals for reaser-ch program of proton and heavy ion therapies, single particle effects of spaceflight electronics components and irradiration effecs of living things, but also can provide beams for CSR when physics experiments are done on the experimental terminals with the beam from both SFC and SSC. The layout, performance and beam optics calculations of the new distribution system are presented.