Resistive wall wakefield in the LCLS undulator beam pipe

Technical Report · Mon Sep 20 00:00:00 EDT 2004

DOI:https://doi.org/10.2172/833045· OSTI ID:833045

Bane, Karl L.F.; Stupakov, Gennady

We have shown that, due to the ac resistive wall wakefield, the present LCLS undulator design, with its round copper beam pipe, will result in an unacceptably large energy variation induced within the bunch over the length of the undulator (0.6%). If, instead, we use a flat, aluminum chamber, the energy variation can be reduced to within acceptable limits (less-than-or-similar-to 0.2%). Finally we have shown that the effect of the anomalous skin effect in the beam pipe wall is small, and can be ignored.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 833045
• Report Number(s): SLAC-PUB-10707; TRN: US0406518
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ALUMINIUM
COPPER
DESIGN
SKIN EFFECT
WIGGLER MAGNETS