A new energy spectrum reconstruction method for time-of-flight diagnostics of high-energy laser-driven protons

G. Milluzzo, V. Scuderi, A. Alejo, A. G. Amico, N. Booth, M. Borghesi, G. A. P. Cirrone, G. Cuttone, D. Doria, J. Green, S. Kar, G. Korn, G. Larosa, R. Leanza, D. Margarone, P. Martin, P. McKenna, G. Petringa, J. Pipek, L. RomagnaniF. Romano, A. Russo, F. Schillaci

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Abstract

The Time-of-Flight (TOF) technique coupled with semiconductorlike detectors, as silicon carbide and diamond, is one of the most promising diagnostic methods for high-energy, high repetition rate, laser-accelerated ions allowing a full on-line beam spectral characterization. A new analysis method for reconstructing the energy spectrum of high-energy laser-driven ion beams from TOF signals is hereby presented and discussed. The proposed method takes into account the detector's working principle, through the accurate calculation of the energy loss in the detector active layer, using Monte Carlo simulations. The analysis method was validated against well-established diagnostics, such as the Thomson parabola spectrometer, during an experimental campaign carried out at the Rutherford Appleton Laboratory (UK) with the high-energy laser-driven protons accelerated by the VULCAN Petawatt laser.

Original languageEnglish
Article number083303
Number of pages7
JournalReview of Scientific Instruments
Volume90
Issue number8
Early online date12 Aug 2019
DOIs
Publication statusPublished - 31 Aug 2019

Funding

This work has been supported by the V committee of INFN (Italian Institute for Nuclear Physics) within the ELIMED activities, by the MIUR and by the project Advanced research using high intensity laser produced photons and particles (Grant No. CZ.02.1.01/0.0/0.0/16_019/0000789) from the European Regional Development Fund (ADONIS). The results of the Project No. LQ1606 were also obtained with the financial support of the Ministry of Education, Youth and Sports as part of targeted support from the National Programme of Sustainability II. Moreover, the authors acknowledge the facility access provided by the Science and Technology Facility Council and the support from the laser and technical staff and target fabrication group at the Rutherford Appleton Laboratory.

Keywords

  • time-of-flight
  • laser-accelerated ions
  • high energy
  • Monte Carlo simulations

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