International Workshop on Higher Order Modes in Superconducting Cavities (HOMSC2025)

HOM Damping for EIC Crab Cavities

7 Oct 2025, 15:00

30m

FLASH Seminar Room (bld. 28c)

Oral contribution Design of SRF Cavities and HOM Damping Schemes Design of SRF Cavities and HOM Damping Schemes

Speaker

Binping Xiao (Brookhaven National Lab)

Description

The interaction region (IR) crab cavity system is a special RF system to compensate the loss of luminosity due to a 25 mrad crossing angle at the interaction point (IP) for electron ion collider (EIC). There will be six crab cavities, with four 197 MHz crab cavities and two 394 MHz crab cavities, installed on each side of the IP in the proton/ion ring, and one 394 MHz crab cavity on each side of the IP in the electron ring. In this paper, we show recent progress of the HOM impedance threshold calculation, as well as the HOM damping design, for 197 and 394 MHz crab cavities.