School of Mechanical and Automotive Engineering;
Anhui Polytechnic University;
Wuhu 241000;
China;
Institute of Plasma Physics;
Chinese Academy of Sciences;
Hefei 230026;
China;
Hefei CAS Ion Medical and Technical Devices Co.;
Ltd;
Hefei 230088;
China;
Superconducting; cyclotron; Magnetic; field; Measurement; system; Commissioning;