IPAC'24 - 15th International Particle Accelerator Conference

Design of A 500 MHz Normal-Conducting Cavity for Main Rings of Super Tau-Charm Facility

TUPR23

21 May 2024, 16:00

2h

Rock 'n Roll (MCC Exhibit Hall A)

Poster Presentation MC7.T06 Room Temperature RF Tuesday Poster Session

Speaker

Zexin Cao (University of Science and Technology of China)

Description

A 500 MHz normal-conducting (NC) cavity is being developed for Super Tau-Charm Main Rings which have a current of 2 A and a synchronous radiation energy loss of 410 keV per turn. This NC cavity operates in a higher order mode of TM020. Through optimizations, it results in a high quality factor and a low R/Q. This feature is bene-ficial to reduce the required detuning frequency so that the coupled bunch instabilities (CBIs) driven by the ac-celerating mode are greatly suppressed. It employs ferrite absorbers inside coaxial slots located at the node of the TM020 mode to heavily damp all of dangerous HOMs other than the TM020 mode.

Funding Agency

This work is supported by the “Hundred Talents Program” of the Chinese Academy of
Sciences and by the “Fundamental Research Funds for the Central Universities”.