New Journal of Physics

New Journal of Physics

Deutsche Physikalische Gessellschaft IOP Institute of Physics

GeV-scale electron acceleration in a gas-filled capillary discharge waveguide

Author

S Karsch 1,6, J Osterhoff 1, A Popp 1, T P Rowlands-Rees 2, Zs Major 1, M Fuchs 1,3, B Marx 1,3, R Hörlein 1,3, K Schmid 1,3, L Veisz 1, S Becker 3, U Schramm 4, B Hidding 5, G Pretzler 5, D Habs 3, F Grüner 1, F Krausz 1,3 and S M Hooker 2

Affiliations

1 Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany
2 Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK
3 Sektion Physik der Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748 Garching, Germany
4 Forschungszentrum Dresden-Rossendorf, Bautzner Landstr. 128, D-01328 Dresden, Germany
5 Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität, Universitätsstr. 1, D-40225 Düsseldorf, Germany
6 Author to whom any correspondence should be addressed.

E-mail

stefan.karsch@mpq.mpg.de

Journal

New Journal of Physics Create an alert RSS this journal

Issue

Volume 9, November 2007

Citation

S Karsch et al 2007 New J. Phys. 9 415

doi: 10.1088/1367-2630/9/11/415


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Abstract

We report experimental results on laser-driven electron acceleration with low divergence. The electron beam was generated by focussing 750 mJ, 42 fs laser pulses into a gas-filled capillary discharge waveguide at electron densities in the range between 1018 and 1019 cm−3. Quasi-monoenergetic electron bunches with energies as high as 500 MeV have been detected, with features reaching up to 1 GeV, albeit with large shot-to-shot fluctuations. A more stable regime with higher bunch charge (20–45 pC) and less energy (200–300 MeV) could also be observed. The beam divergence and the pointing stability are around or below 1 mrad and 8 mrad, respectively. These findings are consistent with self-injection of electrons into a breaking plasma wave.

 
PACS

52.38.Kd Laser-plasma acceleration of electrons and ions

41.75.Fr Electron and positron beams

52.40.Fd Plasma interactions with antennas; plasma-filled waveguides

Subjects

Accelerators, beams and electromagnetism

Plasma physics

Dates

Issue 11 (November 2007)

Received 14 September 2007

Published 23 November 2007



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