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Enhancement of lase...
Enhancement of laser-driven ion acceleration in non-periodic nanostructured targets
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Ferri, J. (författare)
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Thiele, I. (författare)
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- Siminos, Evangelos, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Gremillet, L. (författare)
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- Smetanina, Evgeniya O. (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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- Dmitriev, Alexandre, 1975 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Cantono, G. (författare)
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Wahlstrom, C. G. (författare)
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Fulop, T. (författare)
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(creator_code:org_t)
- 2020-01-17
- 2020
- Engelska.
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Ingår i: Journal of Plasma Physics. - : Cambridge University Press (CUP). - 0022-3778 .- 1469-7807. ; 86:1
- Relaterad länk:
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https://www.cambridg...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Using particle-in-cell simulations, we demonstrate an improvement of the target-normal-sheath acceleration (TNSA) of protons in non-periodically nanostructured targets with micron-scale thickness. Compared to standard flat foils, an increase in the proton cutoff energy by up to a factor of two is observed in foils coated with nanocones or perforated with nanoholes. The latter nano-perforated foils yield the highest enhancement, which we show to be robust over a broad range of foil thicknesses and hole diameters. The improvement of TNSA performance results from more efficient hot-electron generation, caused by a more complex laser-electron interaction geometry and increased effective interaction area and duration. We show that TNSA is optimized for a nanohole distribution of relatively low areal density and that is not required to be periodic, thus relaxing the manufacturing constraints.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- intense particle beams
- plasma simulation
- proton acceleration
- beams
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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