WEO4AB03
IHEP, Beijing, People's Republic of China
In this paper, firstly, we studied the beam distribution during the injection process for the Rapid Cycling Synchrotron of the China Spallation Neutron Source (CSNS/RCS). The injection processes with and without the space charge were both simulated by the code ORBIT, and the beam distribution of each turn can be obtained. Then, the particle motion during the injection process can be studied and the beam aperture which was required can be obtained. Secondly, the injection processes for different transverse phase space painting ranges were discussed and simulated. Then, the optimized painting range for CSNS/RCS can be obtained.
