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)

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