RF Design Progress of the 197 MHz Crab Cavity for EIC

Authors

• B. Xiao, Brookhaven National Laboratory
• J. C. Brutus, Brookhaven National Laboratory
• A. Blednykh, Brookhaven National Laboratory
• Z. Conway, Thomas Jefferson National Accelerator Facility
• J. Cox, Thomas Jefferson National Accelerator Facility
• J. R. Delayen, Old Dominion UniversityFollow
• S. U. De Silva, Old Dominion UniversityFollow
• R. Fernandes, Thomas Jefferson National Accelerator Facility
• J. Guo, Thomas Jefferson National Accelerator Facility
• D. Holmes, Brookhaven National Laboratory
• N. Huque, Thomas Jefferson National Accelerator Facility
• G. Li, Brookhaven National Laboratory
• Z. Li, SLAC National Accelerator Laboratory
• J. B. Mandel, Thomas Jefferson National Accelerator Facility
• S. Verdú-Andrés, Brookhaven National Laboratory
• G. Wang, Brookhaven National Laboratory
• Q. Wu, Brookhaven National Laboratory
• W. Xu, Brookhaven National Laboratory

Document Type

Conference Paper

Publication Date

2026

DOI

10.18429/JACoW-IPAC2026-MOP7303

Publication Title

Proceedings of the 17th International Particle Accelerator Conference

Volume

Advance online publication

Pages

1232-1235

Conference Name

17th International Particle Accelerator Conference, 17-22 May 2026, Deauville, Normandy, France

Abstract

The interaction region (IR) crab cavity system is a special RF system designed to compensate for the luminosity loss caused by the 25 mrad crossing angle at the interaction point (IP) of the Electron-Ion collider (EIC). The configuration includes six crab cavities in the Hadron (proton or ion) Storage Ring (HSR) - four operating at 197 MHz and two at 394 MHz - installed on each side of the IP, along with one 394 MHz crab cavity on each side of the IP in the Electron Storage Ring (ESR). This paper presents the recent progress in the RF design of the 197 MHz crab cavity, addressing the geometrical constraints, required crabbing voltages, multipole components, and the Higher Order Mode (HOM) power and impedance thresholds.

Rights

© 2026 by JACoW.

Published under the terms of a Creative Commons Attribution 4.0 International (CC BY 4.0) License.

Comments

The DOI to this work: https://doi.org/10.18429/JACoW-IPAC2026-MOP7303

Is non-functional as of October 2026. This may change as the publisher develops a landing page.

Original Publication Citation

Xiao, B., Brutus, J. C., Blednykh, A., Conway, Z., Cox, J., Delayen, J. R., De Silva, S. U., Fernandes, R., Guo, J., Holmes, D., Huque, N., Li, G., Li, Z., Mandel, J. B., Verdú-Andrés, S., Wang, G., Wu, Q., & Xu, W. (2026). RF design progress of the 197 MHZ crab cavity for EIC. Proceedings of the 17th International Particle Accelerator Conference. Advance online publication. https://www.ipac26.org/prepress/doi/jacow-ipac2026-mop7303/index.html

ORCID

0000-0002-8222-8740 (Delayen), 0000-0002-4809-9439 (De Silva)

Repository Citation

Xiao, B.; Brutus, J. C.; Blednykh, A.; Conway, Z.; Cox, J.; Delayen, J. R.; De Silva, S. U.; Fernandes, R.; Guo, J.; Holmes, D.; Huque, N.; Li, G.; Li, Z.; Mandel, J. B.; Verdú-Andrés, S.; Wang, G.; Wu, Q.; and Xu, W., "RF Design Progress of the 197 MHz Crab Cavity for EIC" (2026). Physics Faculty Publications. 1074.
https://digitalcommons.odu.edu/physics_fac_pubs/1074