Document Type

Conference Paper

Publication Date


Publication Title

Proceedings, 27th Linear Accelerator Conference (LINAC2014)



Conference Name

27th Linear Accelerator Conference (LINAC2014), Geneva, Switzerland, August 31-September 5, 2014


The LCLS-II upgrade requires an rf spreader system to guide bunches into a switchyard delivering beam to two undulators and the primary beam dump. The beam pattern therefore needs a 3-way beam spreader. An rf deflecting cavity concept was proposed that includes both superconducting and normal conducting options. We characterize the higher order modes (HOM) of these rf separator cavities and evaluate beam dynamics effects due to potential HOM excitation. This study includes both short term wake and multi-bunch effects.


Copyright © 2014 by JACoW, Geneva, Switzerland.

Published under a Creative Commons Attribution 3.0 unported license.

Original Publication Citation

De Silva, S., Olave, R., Satogata, T., Krafft, G., Gamage, B. R., & Delayen, J. (2014, August 31- September 5, 2014). HOM and Impedance Study of RF Separators for LCLS II. Paper presented at the 27th Linear Accelerator Conference, Geneva Switzerland.


0000-0002-4809-9439 (De Silva), 0000-0002-8081-3815 (Satogata), 0000-0002-0328-5828 (Krafft), 0000-0002-8222-8740 (Delayen)