Dresden 2014 – wissenschaftliches Programm
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BE: Beschleunigerphysik
BE 12: Free-Electron Lasers
BE 12.3: Vortrag
Donnerstag, 3. April 2014, 10:15–10:30, MOL 213
Sub-Femtosecond Single-Spike X-Ray Pulses from Electron Bunches with very low Charge — •Violetta Wacker1, Juliane Rönsch-Schulenburg1, Yuantao Ding2, Zhirong Huang2, and Alberto Lutman2 — 1Universität Hamburg, Edmund-Siemers-Allee 1, 20146 Hamburg — 2SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025
The Linac Coherent Light Source (LCLS) is an x-ray free-electron laser (FEL) at SLAC National Accelerator Laboratory, supporting a wide range of scientific research with an x-ray pulse length varying from a few to several hundred femtoseconds. There is also a large interest in even shorter x-ray pulses consisting of a single spike only, which will allow the investigation of matter at the atomic length (Å) and time scale (fs). Based on start-to-end simulations we investigate the FEL performance of LCLS at 4.3 GeV and 13.6 GeV using 5 pC, 10 pC and 20 pC electron bunches. With an optimization of the machine set up, simulations show that single spike, sub-fs, hard x-ray pulses are achievable at such a low charge.