Linac Coherent Light Source Electron Beam Collimation

Conference · Fri Apr 27 00:00:00 EDT 2007

OSTI ID:902721

Wu, J; Dowell, D; Emma, P; Limborg-Deprey, C; Schmerge, J F

This paper describes the design and simulation of the electron beam collimation system in the Linac Coherent Light Source (LCLS). Dark current is expected from the gun and some of the accelerating cavities. Particle tracking of the expected dark current through the entire LCLS linac, from gun through FEL undulator, is used to estimate final particle extent in the undulator as well as expected beam loss at each collimator or aperture restriction. A table of collimators and aperture restrictions is listed along with halo particle loss results, which includes an estimate of average continuous beam power lost. In addition, the transverse wakefield alignment tolerances are calculated for each collimator.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 902721
• Report Number(s): SLAC-PUB-12489; TRN: US0703083
• Resource Relation: Conference: Prepared for European Particle Accelerator Conference (EPAC 06), Edinburgh, Scotland, 26-30 Jun 2006
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
LINEAR ACCELERATORS
COLLIMATORS
DESIGN
ELECTRON BEAMS
LIGHT SOURCES
WIGGLER MAGNETS
COMPUTERIZED SIMULATION
ELECTRON GUNS
FREE ELECTRON LASERS
Accelerators
ACCPHY