title: Generation of stable, low-divergence electron beams by laser-wakefield acceleration in a steady-state-flow gas cell.
abstract: Laser-driven, quasimonoenergetic electron beams of up to approximately 200 MeV in energy have been observed from steady-state-flow gas 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.
authors.affiliation: Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Osterhoff
authors.forename: A
authors.initials: A
authors.lastname: Popp
authors.forename: Zs
authors.initials: Z
authors.lastname: Major
authors.forename: B
authors.initials: B
authors.lastname: Marx
authors.forename: T P
authors.initials: TP
authors.lastname: Rowlands-Rees
authors.forename: M
authors.initials: M
authors.lastname: Fuchs
authors.forename: M
authors.initials: M
authors.lastname: Geissler
authors.forename: R
authors.initials: R
authors.lastname: Hörlein
authors.forename: B
authors.initials: B
authors.lastname: Hidding
authors.forename: S
authors.initials: S
authors.lastname: Becker
authors.forename: E A
authors.initials: EA
authors.lastname: Peralta
authors.forename: U
authors.initials: U
authors.lastname: Schramm
authors.forename: F
authors.initials: F
authors.lastname: Grüner
authors.forename: D
authors.initials: D
authors.lastname: Habs
authors.forename: F
authors.initials: F
authors.lastname: Krausz
authors.forename: S M
authors.initials: SM
authors.lastname: Hooker
authors.forename: S
authors.initials: S
authors.lastname: Karsch