Document Type

Conference Paper

Publication Date




Conference Name

2021 International Conference on RF Superconductivity, 6/28/2021- 7/2/2021, Virtual/East Lansing, Michigan


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 Brookhaven National Lab electron ion collider (BNL 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. Both rings share identical 394 MHz crab cavity design to minimize the cost and risk in designing a new RF system, and it will be scaled from 197 MHz crab cavity. In this paper, the higher order mode (HOM) damper design for 197 MHz crab cavity is introduced.


This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paidup, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.

Included with the kind written permission of the United States Department of Energy.

Original Publication Citation

Xiao, B., Delayen, J.R., De Silva, S.U., Li, Z., Rimmer, R., Verdu-Andres, S., Wu, Q. (2021) HOM damper design for BNL EIC 197Mhz crab cavity [Conference paper]. 2021 International Conference on RF Superconductivity, Virtual/East Lansing, Michigan.


0000-0002-4809-9439 (De Silva)