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Persistent URL	http://purl.org/net/epubs/work/30328015
Record Status	Checked
Record Id	30328015
Title	High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams
Contributors	A Alejo, S Kar, A Tebartz, H Ahmed, S Astbury (STFC Rutherford Appleton Lab.), DC Carroll (STFC Rutherford Appleton Lab.), J Ding, D Doria, A Higginson (University of Strathclyde), P McKenna (University of Strathclyde), N Neumann, GG Scott (STFC Rutherford Appleton Lab.), F Wagner, M Roth, M Borghesi
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. [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.
Organisation	CLF , CI , STFC
Keywords
Funding Information	EPSRC (EP/J002550/1); EPSRC (EP/J500094/1); EPSRC (EP/K022415/1); EPSRC (EP/L002221/1)
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Journal Article	Rev Sci Instrum 87, no. 8 (2016): 083304.	doi:10.1063/1.4961028		2016