Share Email Print
cover

Proceedings Paper • new

Generation of electron high energy beams with a ring-like structure by a dual stage laser wakefield accelerator
Author(s): R. Spesyvtsev; E. Brunetti; G. Vieux; M. Shahzad; A. Maitrallain; S. Yoffe; B. Ersfeld; A. Kornaszewski; M. J. V. Streeter; O. Finlay; Y. Ma; B. Kettle; S. J. D. Dann; F. Albert; N. Bourgeois; S. Cipiccia; J. M. Cole; E. Gerstmayr; I. G. Gonzales; A. Higginbotham; A. E. Hussein; K. Falk; K. Krushelnick; N. Lemos; N. C. Lopes; C. Lumsdon; O. Lundh; S. P. D. Mangles; Z. Najmudin; P. P. Rajeev; M. Smid; D. R. Symes; A. G. R. Thomas; D. A. Jaroszynski
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The laser wake-field accelerator (LWFA) traditionally produces high brightness, quasi-monoenergetic electron beams with Gaussian-like spatial and angular distributions. In the present work we investigate the generation of ultra-relativistic beams with ring-like structures in the blowout regime of the LWFA using a dual stage accelerator. A density down-ramp triggers injection after the first stage and is used to produce ring-like electron spectra in the 300 - 600 MeV energy range. These well defined, annular beams are observed simultaneously with the on-axis, high energy electron beams, with a divergence of a few milliradians. The rings have quasi-monoenergetic energy spectra with an RMS spread estimated to be less than 5%. Particle-in-cell simulations confirm that off-axis injection provides the electrons with the initial transverse momentum necessary to undertake distinct betatron oscillations within the plasma bubble during their acceleration process.

Paper Details

Date Published: 24 April 2019
PDF: 8 pages
Proc. SPIE 11036, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III, 110360F (24 April 2019); doi: 10.1117/12.2522781
Show Author Affiliations
R. Spesyvtsev, Univ. of Strathclyde (United Kingdom)
E. Brunetti, Univ. of Strathclyde (United Kingdom)
The Cockcroft Institute (United Kingdom)
G. Vieux, Univ. of Strathclyde (United Kingdom)
M. Shahzad, Univ. of Strathclyde (United Kingdom)
A. Maitrallain, Univ. of Strathclyde (United Kingdom)
S. Yoffe, Univ. of Strathclyde (United Kingdom)
B. Ersfeld, Univ. of Strathclyde (United Kingdom)
A. Kornaszewski, Univ. of Strathclyde (United Kingdom)
M. J. V. Streeter, Lancaster Univ. (United Kingdom)
The Cockcroft Institute (United Kingdom)
The John Adams Institute for Accelerator Science (United Kingdom)
O. Finlay, Lancaster Univ. (United Kingdom)
Y. Ma, Lancaster Univ. (United Kingdom)
The Cockcroft Institute (United Kingdom)
Univ. of Michigan (United States)
B. Kettle, The John Adams Institute for Accelerator Science (United Kingdom)
S. J. D. Dann, Lancaster Univ. (United Kingdom)
The Cockcroft Institute (United Kingdom)
F. Albert, Lawrence Livermore National Lab. (United States)
N. Bourgeois, STFC Rutherford Appleton Lab. (United Kingdom)
S. Cipiccia, Diamond Light Source Ltd. (United Kingdom)
J. M. Cole, The John Adams Institute for Accelerator Science (United Kingdom)
E. Gerstmayr, The John Adams Institute for Accelerator Science (United Kingdom)
I. G. Gonzales, Lund Univ. (Sweden)
A. Higginbotham, Univ. of York (United Kingdom)
A. E. Hussein, Univ. of Michigan (United States)
K. Falk, ELI Beamlines (Czech Republic)
K. Krushelnick, Univ. of Michigan (United States)
N. Lemos, Lawrence Livermore National Lab. (United States)
N. C. Lopes, The John Adams Institute for Accelerator Science (United Kingdom)
GoLP/Instituto de Plasmas e Fusão Nuclear (Portugal)
C. Lumsdon, Univ. of York (United Kingdom)
O. Lundh, Lund Univ. (Sweden)
S. P. D. Mangles, The John Adams Institute for Accelerator Science (United Kingdom)
Z. Najmudin, The John Adams Institute for Accelerator Science (United Kingdom)
P. P. Rajeev, STFC Rutherford Appleton Lab. (United Kingdom)
M. Smid, ELI Beamlines (Czech Republic)
D. R. Symes, STFC Rutherford Appleton Lab. (United Kingdom)
A. G. R. Thomas, Lancaster Univ. (United Kingdom)
The Cockcroft Institute (United Kingdom)
Univ. of Michigan (United States)
D. A. Jaroszynski, Univ. of Strathclyde (United Kingdom)
The Cockcroft Institute (United Kingdom)


Published in SPIE Proceedings Vol. 11036:
Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III
Dino A. Jaroszynski; MinSup Hur, Editor(s)

© SPIE. Terms of Use
Back to Top