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Proceedings Paper

Wide-angle electron beams from laser-wakefield accelerators
Author(s): E. Brunetti; X. Yang; F. Y. Li; D. Reboredo Gil; G. H. Welsh; S. Cipiccia; B. Ersfeld; D. W. Grant; P. A. Grant; M. R. Islam; M. Shahzad; M. P. Tooley; G. Vieux; S. M. Wiggins; Z. M. Sheng; D. A. Jaroszynski
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Paper Abstract

Advances in laser technology have driven the development of laser-wakefield accelerators, compact devices that are capable of accelerating electrons to GeV energies over centimetre distances by exploiting the strong electric field gradients arising from the interaction of intense laser pulses with an underdense plasma. A side-effect of this acceleration mechanism is the production of high-charge, low-energy electron beams at wide angles. Here we present an experimental and numerical study of the properties of these wide-angle electron beams, and show that they carry off a significant fraction of the energy transferred from the laser to the plasma. These high-charge, wide-angle beams can also cause damage to laser-wakefield accelerators based on capillaries, as well as become source of unwanted bremsstrahlung radiation.

Paper Details

Date Published: 7 May 2017
PDF: 12 pages
Proc. SPIE 10240, Laser Acceleration of Electrons, Protons, and Ions IV, 102400P (7 May 2017); doi: 10.1117/12.2269314
Show Author Affiliations
E. Brunetti, Univ. of Strathclyde (United Kingdom)
X. Yang, Univ. of Strathclyde (United Kingdom)
F. Y. Li, Univ. of Strathclyde (United Kingdom)
D. Reboredo Gil, Univ. of Strathclyde (United Kingdom)
G. H. Welsh, Univ. of Strathclyde (United Kingdom)
S. Cipiccia, Univ. of Strathclyde (United Kingdom)
B. Ersfeld, Univ. of Strathclyde (United Kingdom)
D. W. Grant, Univ. of Strathclyde (United Kingdom)
P. A. Grant, Univ. of Strathclyde (United Kingdom)
M. R. Islam, Univ. of Strathclyde (United Kingdom)
M. Shahzad, Univ. of Strathclyde (United Kingdom)
M. P. Tooley, Univ. of Strathclyde (United Kingdom)
G. Vieux, Univ. of Strathclyde (United Kingdom)
Institute of Plasma Physics of the ASCR, v.v.i. (Czech Republic)
S. M. Wiggins, Univ. of Strathclyde (United Kingdom)
Z. M. Sheng, Univ. of Strathclyde (United Kingdom)
Shanghai Jiao Tong Univ. (China)
D. A. Jaroszynski, Univ. of Strathclyde (United Kingdom)


Published in SPIE Proceedings Vol. 10240:
Laser Acceleration of Electrons, Protons, and Ions IV
Eric Esarey; Carl B. Schroeder; Florian J. Grüner, Editor(s)

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