Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

High quality electron beams from a laser wakefield accelerator

Wiggins, S. M. and Issac, R. C. and Welsh, G. H. and Brunetti, E. and Shanks, Richard and Anania, M. P. and Cipiccia, S. and Manahan, G. G. and Aniculaesei, C. and Ersfeld, B. and Islam, M. R. and Burgess, R. T. L. and Vieux, G. and Gillespie, W. A. and MacLeod, A. M. and van der Geer, S. B. and de Loos, M. J. and Jaroszynski, D. A. (2010) High quality electron beams from a laser wakefield accelerator. Plasma Physics and Controlled Fusion, 52 (12). p. 124032. ISSN 0741-3335

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

High quality electron beams have been produced in a laser-plasma accelerator driven by femtosecond laser pulses with a peak power of 26TW. Electrons are produced with an energy up to 150MeV from the 2mm gas jet accelerator and the measured rms relative energy spread is less than 1%. Shot-to-shot stability in the central energy is 3%. Pepper-pot measurements have shown that the normalized transverse emittance is similar to 1 pi mm mrad while the beam charge is in the range 2-10pC. The generation of high quality electron beams is understood from simulations accounting for beam loading of the wakefield accelerating structure. Experiments and self-consistent simulations indicate that the beam peak current is several kiloamperes. Efficient transportation of the beam through an undulator is simulated and progress is being made towards the realization of a compact, high peak brilliance free-electron laser operating in the vacuum ultraviolet and soft x-ray wavelength ranges.