High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams

A. Alejo, S. Kar, A. Tebartz, H. Ahmed, S. Astbury, D.C. Carroll, J. Ding, D. Doria, A. Higginson, P. McKenna, N. Neumann, G.G. Scott, F. Wagner, M. Roth, M. Borghesi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We report on the experimental characterisation of laser-driven ion beams using a Thomson Parabola Spectrometer (TPS) equipped with trapezoidally-shaped electric plates, proposed by Gwynne et al. in Rev. Sci. Instrum. 85, 033304 (2014). While a pair of extended (30 cm long) electric plates was able to produce a significant increase in the separation between neighbouring ion species at high energies, deploying a trapezoidal design circumvented the spectral clipping at the low energy end of the ion spectra. The shape of the electric plate was chosen carefully considering, for the given spectrometer configuration, the range of detectable ion energies and species. Analytical tracing of the ion parabolas matches closely with the experimental data, which suggests a minimal effect of fringe fields on the escaping ions close to the wedged edge of the electrode. The analytical formulae were derived considering the relativistic correction required for the high energy ions to be characterised using such spectrometer.
LanguageEnglish
Article number083304
Number of pages6
JournalReview of Scientific Instruments
Volume87
Issue number8
DOIs
Publication statusPublished - 17 Aug 2016

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parabolas
Ion beams
Spectrometers
ion beams
spectrometers
high resolution
Ions
ions
energy
tracing
Electrodes
electrodes
Lasers
configurations
lasers

Keywords

  • instrumentation
  • Thomson parabola ion spectrometry
  • ion acceleration
  • electrode
  • laser-driven ion beams
  • trapezoidal plates

Cite this

Alejo, A., Kar, S., Tebartz, A., Ahmed, H., Astbury, S., Carroll, D. C., ... Borghesi, M. (2016). High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams. Review of Scientific Instruments, 87(8), [083304]. https://doi.org/10.1063/1.4961028
Alejo, A. ; Kar, S. ; Tebartz, A. ; Ahmed, H. ; Astbury, S. ; Carroll, D.C. ; Ding, J. ; Doria, D. ; Higginson, A. ; McKenna, P. ; Neumann, N. ; Scott, G.G. ; Wagner, F. ; Roth, M. ; Borghesi, M. / High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams. In: Review of Scientific Instruments. 2016 ; Vol. 87, No. 8.
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Alejo, A, Kar, S, Tebartz, A, Ahmed, H, Astbury, S, Carroll, DC, Ding, J, Doria, D, Higginson, A, McKenna, P, Neumann, N, Scott, GG, Wagner, F, Roth, M & Borghesi, M 2016, 'High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams' Review of Scientific Instruments, vol. 87, no. 8, 083304. https://doi.org/10.1063/1.4961028

High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams. / Alejo, A.; Kar, S.; Tebartz, A.; Ahmed, H.; Astbury, S.; Carroll, D.C.; Ding, J.; Doria, D.; Higginson, A.; McKenna, P.; Neumann, N.; Scott, G.G.; Wagner, F.; Roth, M.; Borghesi, M.

In: Review of Scientific Instruments, Vol. 87, No. 8, 083304, 17.08.2016.

Research output: Contribution to journalArticle

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T1 - High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams

AU - Alejo, A.

AU - Kar, S.

AU - Tebartz, A.

AU - Ahmed, H.

AU - Astbury, S.

AU - Carroll, D.C.

AU - Ding, J.

AU - Doria, D.

AU - Higginson, A.

AU - McKenna, P.

AU - Neumann, N.

AU - Scott, G.G.

AU - Wagner, F.

AU - Roth, M.

AU - Borghesi, M.

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KW - Thomson parabola ion spectrometry

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