Abstract
Laser-driven, quasimonoenergetic electron beams of up to similar to 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.
Original language | English |
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Article number | 085002 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 101 |
Issue number | 8 |
Early online date | 21 Aug 2008 |
DOIs | |
Publication status | Published - 2008 |
Keywords
- pulses
- stable
- low-divergence
- electron beams
- laser-wakefield acceleration
- steady-state-flow gas cell