Dresden 2013 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 71: Beschleunigerphysik XII (Kurze Pulse)
HK 71.4: Talk
Thursday, March 7, 2013, 14:45–15:00, WIL-C205
Sub-Femtosecond X-Ray Pulse from Electron Bunches with Very Low Charge at LCLS — •Violetta Wacker1, Juliane Rönsch-Schulenburg1, Yuantao Ding2, Zhirong Huang2, and Feng Zhou2 — 1University Of Hamburg, Hamburg, Germany — 2SLAC, CA 94025, USA
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). For the hard x-ray operation at 13.6 GeV of LCLS, we investigate the FEL performance using 1 pC and 3 pC electron bunches, based on start-to-end simulations. 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. Additionally single spike pulse studies for the soft x-ray operation at 4.3 GeV of LCLS using a 5 pC electron bunch are in progress.