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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 13: PWA, DLA, Thomson and Compton Scattering

AKBP 13.8: Talk

Thursday, March 17, 2016, 15:45–16:00, S1/05 24

Plasma-based ultrashort electron bunch diagnostic — •Irene Dornmair¹, Carl B. Schroeder², Klaus Floettmann³, Barbara Marchetti³, and Andreas R. Maier¹ — ¹Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg — ²Lawrence Berkeley National Laboratory, California 94720, USA — ³Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg

Ultrashort electron bunches of few femtoseconds length are highly desirable for a large number of applications, such as ultrafast electron diffraction, free-electron lasers or for external injection into plasma wakefields. A precise knowledge of the longitudinal phase space is crucial for these applications and in order to optimize bunch compression. However, measuring the bunch length or even the current profile becomes increasingly challenging for ever shorter bunches. We will present a new method to diagnose ultrashort bunches using laser-driven plasma wakefields and explore its limitations in terms of resolution in time and energy spread.