HB2025 - the 71st ICFA Advanced Beam Dynamics workshop on High-Intensity and High-Brightness Hadron Beams

The Field Measurement of the Injection Painting Bump Magnets for the CSNS-II/RCS

THPT62

Oct 23, 2025, 3:30 PM

2h

third floor (conference center)

Poster Presentation WGC:Accelerator Systems THPT poster session

Speaker

Zixi Pang (Institute of High Energy Physics, China Spallation Neutron Source, University of Chinese Academy of Sciences)

Description

For accumulating high-intensity beam, the H- stripping injection is adopted in the rapid cycling synchrotron (RCS) of the China Spallation Neutron Source (CSNS). For the CSNS-II, the painting injection is a key solution, which is performed in a straight section of RCS by the bump magnets, including four BCH magnets for horizontal painting, four BV magnets for the vertical painting and one LRBD magnet for the horizontal sweeping compensation. The fabrication and the field measurement of the magnets have been completed. The measurement items include magnetic field response error, magnetic field uniformity, leakage field, and so on. The measurement system and the results of the magnetic field measurement are presented in this paper.

Funding Agency

This work is jointly supported by the Guangdong Basic and Applied Basic Research Foundation (No. 2021B1515120021).