[SLAC] [SLAC Pubs and Reports]
SLAC-PUB-7912
FEL Simulations for the LCLS
Abstract
A first Design Study Report has recently been completed [1] for the
Linac Coherent Light Source (LCLS), a proposal to build an x-ray Free
Electron Laser (FEL) at the Stanford Linear Accelerator Center (SLAC)
as a single pass SASE (Self-Amplified Spontaneous Emission)
amplifier. The proposal includes the use of a very low emittance
electron beam accelerated up to 15 GeV by the last third of the SLAC
linac to produce sub-picosecond x-ray pulses with high brightness and
full transverse coherence in a 112-meter long undulator. Many aspects
of the FEL design have been analyzed with FEL simulation codes. The
paper discusses some of the results of these aspects, i.e. temporal
x-ray pulse structure and power sprectrum, trajectory errors and
effects of undulator beam tube wakefields.
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