Pepper-pot emittance measurement of laser-plasma wakefield accelerated electrons

R. P. Shanks, M. P. Anania, E. Brunetti, S. Cipiccia, B. Ersfeld, J. G. Gallacher, R. C. Issac, M. R. Islam, G. Vieux, G. H. Welsh, S. M. Wiggins, D. A. Jaroszynski, DA Jaroszynski (Editor), A Rousse (Editor)

Research output: Contribution to conferencePaper

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Abstract

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.
Original languageEnglish
DOIs
Publication statusPublished - 2009
EventConference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond - Prague, Czech Republic
Duration: 21 Apr 200923 Apr 2009

Conference

ConferenceConference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond
CountryCzech Republic
CityPrague
Period21/04/0923/04/09

Keywords

  • wakefield acceleration
  • pepper pot
  • emittance
  • energy spread
  • laser-plasma interaction
  • relativistic electron beams

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