Research on measurement of integral field uniformity of CSNS corrector magnets

The China Spallation Neutron Source (CSNS) accelerator mainly consists of a linear accelerator, a 1.6 GeV rapid cycling synchrotron (RCS), a low energy transport line and a high energy transport line. Among them, there are twelve types of corrector magnets, a total of 74 sets. In order to complete the measurement of the corrector magnets quickly and efficiently, the rotating coil measurement system is used. This paper will introduce the measurement principle, the magnetic measurement system, and a comparison of the measurement results in detail, which is helpful for efficient measurement of mass magnets.