Tuner control system of spoke012 SRF cavity for C-ADS injector I at IHEP

TL;DR

This paper presents a newly developed tuner control system for spoke SRF cavities at IHEP, demonstrating successful implementation and precise tuning during proton beam commissioning.

Contribution

Introduction of a novel tuner control system for spoke SRF cavities with successful experimental validation at IHEP.

Findings

Achieved a cavity tuning phase error of 0.7 degrees

Successfully implemented the tuner controller for the first time

Demonstrated effective tuning during proton beam commissioning

Abstract

A new tuner control system of spoke superconducting radio frequency (SRF) cavity has been developed and applied to cryomodule I (CM1) of C-ADS injector I at IHEP. We have successfully implemented the tuner controllerfor the first time and achieved a cavity tuning phase error of 0.7degrees (about 4 Hz peak to peak) in the presence of electromechanical coupled resonance. This paper will present the preliminary experimental results based on the new tuner controller under proton beam commissioning.