Scaling of proton acceleration driven by petawatt-laser-plasma interactions

L. Robson, P.T. Simpson, R.J. Clarke, K.W.D. Ledingham, F. Lindau, O. Lundh, T. McCanny, P. Mora, D. Neely, C.G. Wahlström, M. Zepf, P. McKenna

Research output: Contribution to journalArticle

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Abstract

The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and energies of the ions accelerated. Here, we extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×1020 Wcm−2 respectively, and find a slower proton scaling than previously predicted.With the aid of plasma-expansion simulation tools, our results suggest the importance of time-dependent andmultidimensional effects in predicting the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed.
LanguageEnglish
Pages58-62
Number of pages4
JournalNature Physics
Volume3
DOIs
Publication statusPublished - 2007

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laser plasma interactions
scaling
protons
medicine
proton energy
high power lasers
ions
expansion
energy
lasers
simulation

Keywords

  • high-power lasers
  • high-quality beams
  • energetic ions
  • laser-accelerated protons
  • proton acceleration
  • petawatt-laser–plasma interactions
  • plasma-expansion simulation tools
  • medical applications

Cite this

Robson, L. ; Simpson, P.T. ; Clarke, R.J. ; Ledingham, K.W.D. ; Lindau, F. ; Lundh, O. ; McCanny, T. ; Mora, P. ; Neely, D. ; Wahlström, C.G. ; Zepf, M. ; McKenna, P. / Scaling of proton acceleration driven by petawatt-laser-plasma interactions. In: Nature Physics. 2007 ; Vol. 3. pp. 58-62.
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abstract = "The possibility of using high-power lasers to generate high-quality beams of energetic ions is attracting large global interest. The prospect of using laser-accelerated protons in medicine attracts particular interest, as these schemes may lead to compact and relatively low-cost sources. Among the challenges remaining before these sources can be used in medicine is to increase the numbers and energies of the ions accelerated. Here, we extend the energy and intensity range over which proton scaling is experimentally investigated, up to 400 J and 6×1020 Wcm−2 respectively, and find a slower proton scaling than previously predicted.With the aid of plasma-expansion simulation tools, our results suggest the importance of time-dependent andmultidimensional effects in predicting the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed.",
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Robson, L, Simpson, PT, Clarke, RJ, Ledingham, KWD, Lindau, F, Lundh, O, McCanny, T, Mora, P, Neely, D, Wahlström, CG, Zepf, M & McKenna, P 2007, 'Scaling of proton acceleration driven by petawatt-laser-plasma interactions' Nature Physics, vol. 3, pp. 58-62. https://doi.org/10.1038/nphys476

Scaling of proton acceleration driven by petawatt-laser-plasma interactions. / Robson, L.; Simpson, P.T.; Clarke, R.J.; Ledingham, K.W.D.; Lindau, F.; Lundh, O.; McCanny, T.; Mora, P.; Neely, D.; Wahlström, C.G.; Zepf, M.; McKenna, P.

In: Nature Physics, Vol. 3, 2007, p. 58-62.

Research output: Contribution to journalArticle

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AU - Robson, L.

AU - Simpson, P.T.

AU - Clarke, R.J.

AU - Ledingham, K.W.D.

AU - Lindau, F.

AU - Lundh, O.

AU - McCanny, T.

AU - Mora, P.

AU - Neely, D.

AU - Wahlström, C.G.

AU - Zepf, M.

AU - McKenna, P.

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