Bonn 2010 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Beschleunigerphysik VIII
HK 38.4: Vortrag
Mittwoch, 17. März 2010, 14:50–15:05, HG ÜR 8
Active control of laser-wakefield-accelerated electrons using magnetic quadrupole lenses — •Raphael Weingartner1,2, Matthias Fuchs1,2, Antonia Popp1,2, Sebastian Raith1,2, Stefan Becker1,2, Shao-wei Chou1,2, Matthias Heigoldt1,2, Konstantin Khrennikov1,2, Johannes Wenz1,2, Benno Zeitler1,2, Zsuzsanna Major1,2, Jens Osterhoff1,2, Ferenc Krausz1,2, Stefan Karsch1,2, and Florian Grüner1,2 — 1Ludwig Maximilians Universität, München, Deutschland — 2Max-Planck Institute für Quantenoptik, Garching, Deutschland
Laser-wakefield acceleration is maturing into a stable source of ultra-relativistic electron beams. We show experimental data of the active control of these novel beams after their generation by using miniature magnetic quadrupole lenses. These devices address the main challenges of high divergence and pointing fluctuations of several mrad whilst still maintaining the intrinsic advantages of ultrashort pulse duration of around 10 fs and expected low emittance. This technology allows the realization of compact synchrotron sources and is of central importance for future applications such as the table-top free-electron laser (TT-FEL). A next step will involve using such lenses for emittance measurements.