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

Shanks, R.P. et al. (2009) Pepper-pot emittance measurement of laser-plasma wakefield accelerated electrons. In: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond, Prague, Czech Republic, 21-23 Apr 2009, (doi:10.1117/12.820706)

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Publisher's URL: http://dx.doi.org/10.1117/12.820706

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 μm diameter holes in a tungsten mask. The pepper-pot results set an upper limit for the normalised emittance at 5.5 ± 1 π mm mrad for an 82 MeV beam.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Shanks, Dr Richard
Authors: Shanks, R.P., Anania, M.P., Brunetti, E., Cipiccia, S., Ersfeld, B., Gallacher, J.G., Issac, R.C., Islam, M.R., Vieux, G., Welsh, G.H., Wiggins, S.M., and Jaroszynski, D.A.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre

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