Generation of Stable, Low-Divergence Electron Beams by Laser-Wakefield Acceleration in a Steady-State-Flow Gas Cell

Authors

• J. Osterhoff, Max-Planck-Institut für Quantenoptik
• A. Popp, Max-Planck-Institut für Quantenoptik
• Zs. Major, Max-Planck-Institut für Quantenoptik
• B. Marx, Max-Planck-Institut für Quantenoptik
• T.P. Rowlands-Ree, University of Oxford
• Matthias Fuchs, University of Nebraska - LincolnFollow
• M. Geissler, Queen's University - Belfast
• R. Horlein, Max-Planck-Institut für Quantenoptik
• B. Hidding, Heinrich-Heine-Universitat Dusseldorf
• S. Becker, Sektion Physik der Ludwig-Maximilians- Universitat Munchen
• E.A. Peralta, Max-Planck-Institut für Quantenoptik
• U. Schramm, Forschungszentrum Dresden-Rossendorf
• F. Gruner, Max-Planck-Institut für Quantenoptik
• D. Habs, Max-Planck-Institut für Quantenoptik
• F. Krausz, Max-Planck-Institut für Quantenoptik
• Simon M. Hooker, University of OxfordFollow
• Stefan Karsh, Max-Planck-Institut für QuantenoptikFollow

Document Type

Article

Date of this Version

8-2008

Citation

Physical Review Letters 101, 085002 (2008); DOI: 10.1103/PhysRevLett.101.085002

Comments

Copyright 2008 The American Physical Society. Used by permission.

Abstract

Laser-driven, quasimonoenergetic electron beams of up to ~200 MeV in energy have been observed from steady-state-flow fas cells. These beams emitted within a low-divergence cone of 2.1 ± 0.5 mrad FWHM display unprecedented shot-to-shot stability in energy (2.5% rms), pointing (1.4 mrad rms), and charge (16% rms) owing to a highly reproducible gas-density profile within the interaction volume. Laser-wakefield acceleration in gas cells of this type provides a simple and reliable source of relativistic electrons suitable for applications such as the production of extreme-ultraviolet undulator radiation.