Scintillator-based ion beam profiler for diagnosing laser-accelerated ion beams

J. S. Green, M. Borghesi, C. M. Brenner, D. C. Carroll, N. P. Dover, P. S. Foster, P. Gallegos, S. Green, D. Kirby, K. J. Kirkby, P. McKenna, M. J. Merchant, Z. Najmudin, C. A. J. Palmer, D. Parker, R. Prasad, K. E. Quinn, P. P. Rajeev, M. P. Read, L. RomagnaniJ. Schreiber, M.J.V. Streeter, O. Tresca, C. G. Wahlström, M. Zepf, D. Neely

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Abstract

Next generation intense, short-pulse laser facilities require new high repetition rate diagnostics for the detection of ionizing radiation. We have designed a new scintillator-based ion beam profiler capable of measuring the ion beam transverse profile for a number of discrete energy ranges. The optical response and emission characteristics of four common plastic scintillators has been investigated for a range of proton energies and fluxes. The scintillator light output (for 1 MeV > Ep < 28 MeV) was found to have a non-linear scaling with proton energy but a linear response to incident flux. Initial measurements with a prototype diagnostic have been successful, although further calibration work is required to characterize the total system response and limitations under the high flux, short pulse duration conditions of a typical high intensity laser-plasma interaction.

Original languageEnglish
Article number807919
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume8079
DOIs
Publication statusPublished - 13 Jul 2011
EventLaser Acceleration of Electrons, Protons, and Ions; and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles - Prague, Czech Republic
Duration: 18 Apr 201120 Apr 2011

Keywords

  • acceleration
  • ion
  • laser-accelerated electrons
  • plasma
  • proton
  • scintillator
  • lasers

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    Green, J. S., Borghesi, M., Brenner, C. M., Carroll, D. C., Dover, N. P., Foster, P. S., Gallegos, P., Green, S., Kirby, D., Kirkby, K. J., McKenna, P., Merchant, M. J., Najmudin, Z., Palmer, C. A. J., Parker, D., Prasad, R., Quinn, K. E., Rajeev, P. P., Read, M. P., ... Neely, D. (2011). Scintillator-based ion beam profiler for diagnosing laser-accelerated ion beams. Proceedings of SPIE - The International Society for Optical Engineering, 8079, [807919]. https://doi.org/10.1117/12.888967