Electron beam pointing stability of a laser wakefield accelerator

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Issac, R. C. and Vieux, G. and Welsh, G. H. and Shanks, R. and Brunetti, E. and Cipiccia, S. and Anania, M. P. and Yang, X. and Wiggins, S. M. and Islam, M. R. and Ersfeld, B. and Farmer, J. and Raj, G. and Chen, S. and Clark, D. and McCanny, T. and Jaroszynski, D. A.; Jaroszynski, DA and Rousse, A, eds. (2009) Electron beam pointing stability of a laser wakefield accelerator. In: Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, 2009-04-21 - 2009-04-23. (https://doi.org/10.1117/12.822165)

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Abstract

Electron acceleration using plasma waves driven by ultra-short relativistic intensity laser pulses has undoubtedly excellent potential for driving a compact light source. However, for a wakefield accelerator to become a useful and reliable compact accelerator the beam properties need to meet a minimum standard. To demonstrate the feasibility of a wakefield based radiation source we have reliably produced electron beams with energies of 82 +/- 5 MeV, with 1 +/- 0.2% energy spread and 3 mrad r.m.s. divergence using a 0.9 J, 35 fs 800 nm laser. Reproducible beam pointing is essential for transporting the beam along the electron beam line. We find experimentally that electrons are accelerated close to the laser axis at low plasma densities. However, at plasma densities in excess of 10(19) cm(-3), electron beams have an elliptical beam profile with the major axis of the ellipse rotated with respect to the direction of polarization of the laser.

ORCID iDs

Issac, R. C., Vieux, G. ORCID logoORCID: https://orcid.org/0000-0003-4040-4117, Welsh, G. H. ORCID logoORCID: https://orcid.org/0000-0001-7933-4190, Shanks, R., Brunetti, E. ORCID logoORCID: https://orcid.org/0000-0001-8302-9762, Cipiccia, S., Anania, M. P., Yang, X., Wiggins, S. M. ORCID logoORCID: https://orcid.org/0000-0001-7804-6146, Islam, M. R., Ersfeld, B. ORCID logoORCID: https://orcid.org/0000-0001-5597-9429, Farmer, J., Raj, G., Chen, S. ORCID logoORCID: https://orcid.org/0000-0002-0400-6018, Clark, D., McCanny, T. and Jaroszynski, D. A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492; Jaroszynski, DA and Rousse, A
  • Item type:Conference or Workshop Item(Paper)
    ID code:30201
    Dates:
    Date
    Event
    2009
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Apr 2011 11:40
    Last modified:11 Nov 2024 16:28
    URI:https://strathprints.strath.ac.uk/id/eprint/30201
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