The Study on the Effects of Chromaticity and Magnetic Field Tracking Errors at CSNS/RCS

摘要

The Rapid Cycling Synchrotron (RCS) is a key component of the ChinaSpallation Neutron Source (CSNS). For this type of high intensity protonsynchrotron, the chromaticity, space charge effects and magnetic field trackingerrors between the quadrupoles and the dipoles can induce beta functiondistortion and tune shift, and induce resonances. In this paper the combinedeffects of chromaticity, magnetic field tracking errors and space charge onbeam dynamics at CSNS/RCS are studied systemically. 3-D simulations withdifferent magnetic field tracking errors are performed by using the code ORBIT,and the simulation results are compared with the case without tracking errors.