IBIC2025 - 14th International Beam Instrumentation Conference

Preliminary data analysis of an IPM prototype CSNS RCS

TUPMO41

9 Sept 2025, 16:00

2h

Mountford Hall, Liverpool Guild of Students

Poster Presentation MC04: Transverse Profile and Emittance Monitors Tuesday Poster Session

Speaker

Biao Zhang (Institute of High Energy Physics, China Spallation Neutron Source)

Description

In the China Spallation Neutron Source (CSNS), an Ion Profile Monitor (IPM) was installed in the Rapid Cycling Synchrotron (RCS) to address challenges in measuring strong-current beam profiles and enable real-time monitoring. This study focuses on the preliminary analysis of IPM data signals, aiming to accurately extract critical beam information from the signals. Residual gas components in the vacuum chamber were identified through peak spacing calculations. Real-time beam profiles (0–20 ms, low power) were obtained, revealing the beam center and temporal evolution of rms beam size. Fast Fourier Transform (FFT) of signal peaks uncovered dynamic changes in the synchrotron tune. Single- and multi-Gaussian fitting methods were used to analyze MCP-collected charge over time and determine MCP saturation time point. The results demonstrate that IPM data analysis effectively extracts beam information, supporting real-time monitoring and optimization of CSNS RCS beam stability and quality.