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Plasma scale length effects on protons generated in ultra-intense laser–plasmas

Published online by Cambridge University Press:  22 December 2016

O. Culfa*
Affiliation:
Department of Physics, Karamanoglu MehmetBey University, Karaman, Turkey Horia Hulubei National Institute of Physics & Nuclear Engineering, IFIN-HH, ELI NP, Magurele, Romania Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
G.J. Tallents
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
M.E. Korkmaz
Affiliation:
Department of Physics, Karamanoglu MehmetBey University, Karaman, Turkey
A.K. Rossall
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
E. Wagenaars
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
C.P. Ridgers
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
C.D. Murphy
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
N. Booth
Affiliation:
CLF, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK
D.C. Carroll
Affiliation:
CLF, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK
L.A. Wilson
Affiliation:
CLF, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK
K.L. Lancaster
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK CLF, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK
N.C. Woolsey
Affiliation:
Department of Physics, York Plasma Institute, The University of York, York, YO10 5DD, UK
*
Address correspondence and reprint requests to: O. Culfa, Department of Physics, Karamanoglu MehmetBey University, Karaman, Turkey. E-mail: [email protected]

Abstract

The energy spectra of protons generated by ultra-intense (1020 W cm−2) laser interactions with a preformed plasma of scale length measured by shadowgraphy are presented. The effects of the preformed plasma on the proton beam temperature and the number of protons are evaluated. Two-dimensional EPOCH particle-in-cell code simulations of the proton spectra are found to be in agreement with measurements over a range of experimental parameters.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2016 

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References

REFERENCES

Alfven, H. (1939). On the motion of cosmic rays in interstellar space. Phys. Rev. 55, p. 425.Google Scholar
Arber, T.D., Bennett, K., Brady, C.S., Lawrence-Douglas, A., Ramsay, M.G., Sircombe, N.J., Gillies, P., Evans, R.G., Schmitz, H., Bell, A.R. & Ridgers, C.P. (2015). Contemporary particle-in-cell approach to laser-plasma modelling. Plasma Phys. Control. Fusion 57, pp. 126.Google Scholar
Colgan, J., Abdallah, J., Faenov, A.Y., Pikuz, S.A., Wagenaars, E., Booth, N., Culfa, O., Dance, R.J., Evans, R.G., Gray, R.J., Kaempfer, T., Lancaster, K.L., McKenna, P., Rossall, A.L., Skobelev, I.Y., Schulze, K.S., Uschmann, I., Zhidkov, A.G. & Woolsey, N.C. (2013). Exotic dense-matter states pumped by a relativistic laser plasma in the radiation-dominated regime. Phys. Rev. Lett. 110, p. 125001.Google Scholar
Culfa, O., Tallents, G.J., Rossall, A.K., Wagenaars, E., Ridgers, C.P., Murphy, C., Dance, R.J., Gray, R.J., McKenna, P., Brown, C.D.R., James, S.F., Hoarty, D.J., Booth, N., Robinson, A.P.L., Lancaster, K.L., Pikuz, S.A., Faenov, A.Y., Kampfer, T., Schulze, K.S., Uschmann, I. & Woolsey, N.C. (2016). Plasma scale-length effects on electron energy spectra in high-irradiance laser plasmas. Phys. Rev. E 93, p. 043201Google Scholar
Culfa, O., Tallents, G.J., Wagenaars, E., Ridgers, C.P., Dance, R.J., Rossall, A.K., Gray, R.J., McKenna, P., Brown, C.D.R., James, S.F., Hoarty, D.J., Booth, N., Robinson, A.P.L., Lancaster, K.L., Pikuz, S.A., Faenov, A.Y., Kampfer, T., Schulze, K.S., Uschmann, I. & Woolsey, N.C. (2014). Hot electron production in laser solid interactions with a controlled pre-pulse. Phys. Plasmas 21, pp. 043106CrossRefGoogle Scholar
Daido, H., Nishiuchi, M. & Pirozhkov, A. (2012). Review of laser-driven ion sources and their applications. Rep. Prog. Phys. 75, p. 056401Google Scholar
Hansen, S.B., Colgan, J., Faenov, A.Y., Abdallah, J., Pikuz, S.A., Skobelev, I.Y., Wagenaars, E., Booth, N., Culfa, O., Dance, R.J., Tallents, G.J., Evans, R.G., Gray, R.J., Kaempfer, T., Lancaster, K.L., McKenna, P., Rossall, A.K., Schulze, K.S., Uschmann, I., Zhidkov, A.G. & Woolsey, N.C. (2013). Detailed analysis of hollow ions spectra from dense matter pumped by x-ray emission of relativistic laser plasma. Phys. Plasmas 21, p. 031213Google Scholar
Macchi, A., Borghesi, M. & Passoni, M. (2013). Ion acceleration by super intense laser–plasma interaction. Rev. Mod. Phys. 85, pp. 751793.Google Scholar
Mackinnon, A.J., Borghesi, M., Hatchett, S., Key, M.H., Patel, P.K., Campbell, H., Schiavi, A., Snavely, R., Wilks, S.C. & Willi, O. (2001). Effect of plasma scale Length on multi-MeV proton production by intense laser pulses. Phys. Rev. Lett. 86, pp. 17691772.Google Scholar
Max, C., Arons, J. & Langdon, A. (1974). Self-modulation and self-focusing of electromagnetic waves in plasmas. Phys. Rev. Lett. 33, p. 209Google Scholar
Naseri, N., Bochkarev, S.G. & Rozmus, W. (2010). Self-channelling of relativistic laser pulses in large-scale underdense plasmas. Phys. Plasmas 17, p. 033107Google Scholar
Nurnberg, F., Schollmeier, M., Brambrink, E., Blazevic, A., Carroll, D.C., Flippo, K., Gautier, D.C., Geibel, M., Harres, K., Hegelich, B.M., Lundh, O., Markey, K., McKenna, P., Neely, D., Schreiber, J. & Roth, M. (2009). Radiochromic film imaging spectroscopy of laser-accelerated proton beams. Rev. Sci. Inst. 80, p. 033301Google Scholar
Roth, M. & Schollmeier, M. (2016). Ion acceleration—target normal sheath acceleration. CERN Yellow Rep. 1, p. 231Google Scholar
Schollmeier, M., Geissel, M., Sefkow, A.B. & Flippo, K.A. (2014). Improved spectral data unfolding for radiochromic film imaging spectroscopy of laser-accelerated proton beams. Rev. Sci. Inst. 85, p. 043305Google Scholar
Wilks, S., Langdon, A., Cowan, T., Rooth, M., Singh, M., Hatchett, S., Key, M., Pennington, D., MacKinnon, A. & Snavely, R. (2001). Energetic proton generation in ultra-intense laser–solid interactions. Phys. Plasmas 8, pp. 542549..Google Scholar