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

RF SISTYEM OF MAGNETIC ALLOY LOADED CAVITY IN CSNS

THIBC01

Oct 23, 2025, 11:00 AM

30m

room C (conference center)

Invited Oral Presentation WGC:Accelerator Systems THIBC WGC invited oral

Speaker

Bin Wu (Institute of High Energy Physics)

Description

With the application of in (RCS) of China Spallation Neutron Source(CSNS), space charge effect has been mitigated effectively, the beam power is reaching 170kW with stable operation. However, under high beam power conditions, the strong beam loading effect becomes the primary challenge for the second harmonic RF system. In order to keep system run steadily under complex working conditions, this study constructs a simulation model containing analysis of status of magnetic alloy loaded cavity, power source, Low-Level Radio Frequency con-trol system (LLRF) and RF system of beam based on LTspice platform. In comparison of simulation result and beam commissioning data, the high reliability of the model has been tested. This study provides an important technical tool to optimize RF systems for high-intensity beam operation.