Document Type

Conference Paper

Publication Date


Publication Title

Proceedings of the 23rd Particle Accelerator Conference



Conference Name

23rd Accelerator Conference, May 4-8, 2009, Vancouver, British Columbia, Canada


The CEBAF accelerator at Jefferson Lab has had, since first demonstration in 1996, the ability to deliver a 5-pass electron beam to experimental halls (A, B, and C) simultaneously. This capability is provided by a set of three, room temperature 499 MHz rf separators in the 5th pass beamline. The separator cavity is a two-rod, two-cell TEM mode type resonator, which has high shunt impedance. The 12 GeV baseline design does not preserve the capability of separating the 5th pass, 11 GeV beam for the 3 existing halls. Several options for restoring this capability, including extension of the present room temperature system or a new superconducting design in combination with magnetic systems, are under investigation and are presented.

Original Publication Citation

Delayen, J. R., Spata, M., & Wang, H. (2009). Options for an 11 GEV RF beam separator for the Jefferson Lab CEBAF upgrade. In Proceedings of the 23rd Particle Accelerator Conference (pp. 1644-1646). JACoW.