title: High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams.
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.
authors: Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom.
authors: A
authors: A
authors: Alejo
authors: Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom.
authors: S
authors: S
authors: Kar
authors: Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany.
authors: A
authors: A
authors: Tebartz
authors: Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom.
authors: H
authors: H
authors: Ahmed
authors: Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom.
authors: S
authors: S
authors: Astbury
authors: Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom.
authors: D C
authors: DC
authors: Carroll
authors: Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany.
authors: J
authors: J
authors: Ding
authors: Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom.
authors: D
authors: D
authors: Doria
authors: Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, United Kingdom.
authors: A
authors: A
authors: Higginson
authors: Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, United Kingdom.
authors: P
authors: P
authors: McKenna
authors: Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany.
authors: N
authors: N
authors: Neumann
authors: Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, United Kingdom.
authors: G G
authors: GG
authors: Scott
authors: GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany.
authors: F
authors: F
authors: Wagner
authors: Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstraße 9, D-64289 Darmstadt, Germany.
authors: M
authors: M
authors: Roth
authors: Centre for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom.
authors: M
authors: M
authors: Borghesi