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  • Aurand, B.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Heinrich Heine University Düsseldorf (author)

Manipulation of the spatial distribution of laser-accelerated proton beams by varying the laser intensity distribution

  • Article/chapterEnglish2016

Publisher, publication year, extent ...

  • AIP Publishing,2016
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:c67282c0-984f-428f-99cf-ea25f5b4586f
  • https://doi.org/10.1063/1.4942032DOI
  • https://research.chalmers.se/publication/235052URI
  • https://lup.lub.lu.se/record/6e0ba505-0f7f-494c-96fc-339025e23f90URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We report on a study of the spatial profile of proton beams produced through target normal sheath acceleration using flat target foils and changing the laser intensity distribution on the target front surface. This is done by either defocusing a single laser pulse or by using a split-pulse setup and irradiating the target with two identical laser pulses with variable spatial separation. The resulting proton beam profile and the energy spectrum are recorded as functions of the focal spot size of the single laser pulse and of the separation between the two pulses. A shaping of the resulting proton beam profile, related to both an increase in flux of low-energy protons in the target normal direction and a decrease in their divergence, in one or two dimensions, is observed. The results are explained by simple modelling of rear surface sheath field expansion, ionization, and projection of the resulting proton beam.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Senje, L.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-lss (author)
  • Svensson, K.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-kse (author)
  • Hansson, M.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-mth (author)
  • Higginson, A.University of Strathclyde (author)
  • Gonoskov, Arkady,1984Chalmers University of Technology(Swepub:cth)gonoskov (author)
  • Marklund, Mattias,1970Chalmers University of Technology(Swepub:cth)marklund (author)
  • Persson, A.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-ape (author)
  • Lundh, O.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-olu (author)
  • Neely, D.STFC Rutherford Appleton Laboratory,Rutherford Appleton Laboratory (author)
  • McKenna, P.University of Strathclyde (author)
  • Wahlström, C. G.Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-cwa (author)
  • AtomfysikFysiska institutionen (creator_code:org_t)

Related titles

  • In:Physics of Plasmas: AIP Publishing23:21089-76741070-664X

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