Source of instability in the rapid cycling synchrotron of the China spallation neutron source Liangsheng Huang, Sheng Wang, Shouyan Xu, Xingguang Liu, Mingyang Huang, Renhong Liu, Biao Tan, Hanyang Liu, Li Rao and Yanliang Han Eur. Phys. J. Plus, 140 1 (2025) 71 Published online: 26 January 2025 DOI: 10.1140/epjp/s13360-025-05997-8