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

doi:10.1117/12.820706

7 May 2009 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

Author Affiliations +

Proceedings Volume 7359, Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond; 735907 (2009) https://doi.org/10.1117/12.820706
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

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.

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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, and D. A. Jaroszynski "Pepper-pot emittance measurement of laser-plasma wakefield accelerated electrons", Proc. SPIE 7359, Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond, 735907 (7 May 2009); https://doi.org/10.1117/12.820706

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