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

Robson, L; Simpson, PT; McKenna, P; Ledingham, KWD; Clarke, RJ; McCanny, T; Neely, D; Lundh, Olle LU ; Lindau, Filip LU and Wahlström, Claes-Göran LU , et al. (2007) In Nature Physics 3(58). p.58-62
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 6×10^20 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... (More)
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 6×10^20 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. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Nature Physics
volume
3
issue
58
pages
58 - 62
publisher
Nature Publishing Group
external identifiers
  • WOS:000243729900019
  • Scopus:33845973028
ISSN
1745-2473
DOI
10.1038/nphys476
language
English
LU publication?
yes
id
9a470d33-affc-4a1c-9262-47d4976606c2 (old id 760783)
date added to LUP
2007-12-17 15:10:56
date last changed
2017-02-12 04:24:20
@article{9a470d33-affc-4a1c-9262-47d4976606c2,
  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<br/><br>
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 6×10^20 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<br/><br>
the maximum proton energy in this ultrahigh-intensity regime. The implications of our new understanding of proton scaling for potential medical applications are discussed.},
  author       = {Robson, L and Simpson, PT and McKenna, P and Ledingham, KWD and Clarke, RJ and McCanny, T and Neely, D and Lundh, Olle and Lindau, Filip and Wahlström, Claes-Göran and Zepf, M},
  issn         = {1745-2473},
  language     = {eng},
  number       = {58},
  pages        = {58--62},
  publisher    = {Nature Publishing Group},
  series       = {Nature Physics},
  title        = {Scaling of proton acceleration driven by petawatt-laser-plasma interactions},
  url          = {http://dx.doi.org/10.1038/nphys476},
  volume       = {3},
  year         = {2007},
}