Share Email Print
cover

Proceedings Paper

High resolution, single shot emittance measurement of relativistic electrons from laser-driven accelerator
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The normalised transverse emittance is a measure of the quality of an electron beam from a particle accelerator. The brightness, parallelism and focusability are all functions of the emittance. Here we present a high-resolution single shot method of measuring the transverse emittance of a 125 ± 3 MeV electron beam generated from a laser wakefield accelerator (LWFA) using a pepper-pot mask. An average normalised emittance of εrms,x,y = 2.2 ± 0.7, 2.3 ± 0.6 π-mmmrad was measured, which is comparable to that of a conventional linear accelerator. The best measured emittance was εrms,x,=1.1 ± 0.1 π-mm-mrad, corresponding to the resolution limit of our system. The low emittance indicates that this accelerator is suitable for driving a compact free electron laser.

Paper Details

Date Published: 12 May 2011
PDF: 6 pages
Proc. SPIE 8079, Laser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, 807909 (12 May 2011); doi: 10.1117/12.887175
Show Author Affiliations
G. G. Manahan, Univ. of Strathclyde (United Kingdom)
E. Brunetti, Univ. of Strathclyde (United Kingdom)
R. P. Shanks, Univ. of Strathclyde (United Kingdom)
M. R. Islam, Univ. of Strathclyde (United Kingdom)
B. Ersfeld, Univ. of Strathclyde (United Kingdom)
M. P. Anania, Univ. of Strathclyde (United Kingdom)
S. Cipiccia, Univ. of Strathclyde (United Kingdom)
R. C. Issac, Univ. of Strathclyde (United Kingdom)
G. Raj, Univ. of Strathclyde (United Kingdom)
G. Vieux, Univ. of Strathclyde (United Kingdom)
G. H. Welsh, Univ. of Strathclyde (United Kingdom)
S. M. Wiggins, Univ. of Strathclyde (United Kingdom)
D. A. Jaroszynski, Univ. of Strathclyde (United Kingdom)


Published in SPIE Proceedings Vol. 8079:
Laser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles
Wim P. Leemans; Eric Esarey; Simon M. Hooker; Kenneth W. D. Ledingham, Editor(s)

© SPIE. Terms of Use
Back to Top