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The transverse emittance is an important parameter governing the brightness of an electron beam. Here we present the first pepper-pot measurement of the transverse emittance for a mono-energetic electron beam from a laser-plasma wakefield accelerator, carried out on the Advanced Laser-Plasma High Energy Accelerators towards X-Rays (ALPHA-X) beam line. Mono-energetic electrons are passed through an array of 52 mu m diameter holes in a tungsten mask. The pepper-pot results set an upper limit for the normalised emittance at 5.5 +/- 1 pi mm mrad for an 82 MeV beam.
|Publication status||Published - 2009|
|Event||Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond - Prague, Czech Republic|
Duration: 21 Apr 2009 → 23 Apr 2009
|Conference||Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond|
|Period||21/04/09 → 23/04/09|
- wakefield acceleration
- pepper pot
- energy spread
- laser-plasma interaction
- relativistic electron beams
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- 2 Finished
European Laser Electron Controlled Acceleration in Plasmas to GeV energy range - EUROLEAP
1/09/06 → 31/08/09