Plasma scale-length effects on electron energy spectra in high-irradiance laser plasmas

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Culfa, O. and Tallents, G.J. and Rossall, A.K. and Wagenaars, E. and Ridgers, C. P. and Murphy, C.D. and Dance, R. J. and Gray, R. J. and McKenna, P. and Brown, C.D.R and James, S.F. and Hoarty, D.J. and Booth, N. and Robinson, A.P.L. and Lancaster, K.L. and Pikuz, S.A. and Faenov, A. Ya and Kampfer, T. and Schulze, K. S. and Uschmann, I. and Woolsey, N.C. (2016) Plasma scale-length effects on electron energy spectra in high-irradiance laser plasmas. Physical Review E, 93 (4). 043201. ISSN 2470-0053 (https://doi.org/10.1103/PhysRevE.93.043201)

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Abstract

An analysis of an electron spectrometer used to characterize fast electrons generated by ultraintense (1020Wcm−2) laser interaction with a preformed plasma of scale length measured by shadowgraphy is presented. The effects of fringing magnetic fields on the electron spectral measurements and the accuracy of density scale-length measurements are evaluated. 2D EPOCH PIC code simulations are found to be in agreement with measurements of the electron energy spectra showing that laser filamentation in plasma preformed by a prepulse is important with longer plasma scale lengths (>8 μm).

ORCID iDs

Culfa, O., Tallents, G.J., Rossall, A.K., Wagenaars, E., Ridgers, C. P., Murphy, C.D., Dance, R. J. ORCID logoORCID: https://orcid.org/0000-0001-8252-5342, Gray, R. J. ORCID logoORCID: https://orcid.org/0000-0003-0610-9595, McKenna, P. ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, Brown, C.D.R, James, S.F., Hoarty, D.J., Booth, N., Robinson, A.P.L., Lancaster, K.L., Pikuz, S.A., Faenov, A. Ya, Kampfer, T., Schulze, K. S., Uschmann, I. and Woolsey, N.C.;
  • Item type:Article
    ID code:56195
    Dates:
    Date
    Event
    6 April 2016
    Published
    6 March 2016
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:19 Apr 2016 14:38
    Last modified:12 Dec 2024 04:14
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/56195
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