IPAC'25 - the 16th International Particle Accelerator Conferece

Advanced optimization of microwave signal stability in the X band unit of SXFEL injector

THPS138

5 Jun 2025, 15:30

2h

Exhibiton Hall A _Salmon (TWTC)

Poster Presentation MC6.T27 Low Level RF Thursday Poster Session

Speaker

Chengcheng Xiao (Shanghai Synchrotron Radiation Facility)

Description

In the SXFEL injector, the beam stability achieved superior performance, maintaining fluctuations below 0.01% after passing through four S-band accelerating units. However, the stability deteriorated to 0.02% upon exiting the X-band linearizer. To mitigate this degradation, a series of targeted enhancements were implemented, including an extensive upgrade of the low-level RF system’s front-end electronics and the integration of adaptive modulation techniques for input signal optimization. These measures effectively restored and improved the beam stability, achieving precision levels within 0.01%.