Proton acceleration using 50 fs, high intensity ASTRA-Gemini laser pulses

R. Prasad, S. Ter-Avetisyan, D. Doria, K. E. Quinn, L. Romagnani, P. S. Foster, C. M. Brenner, J. S. Green, P. Gallegos, M. J. V. Streeter, D. C. Carroll, O. Tresca, N. P. Dover, C. A. J. Palmer, J. Schreiber, D. Neely, Z. Najmudind, P. McKenna, M. Zepf, M. Borghesi

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Abstract

We report on experimental investigations of proton acceleration from thin foil targets irradiated with ultra-short (similar to 50 fs), high contrast (similar to 10(10)) and ultra-intense (up to 10(21) W/cm(2)) laser pulses. These measurements provided for the first time the opportunity to extend the scaling laws for the acceleration process in the ultra-short regime beyond the 10(20) W/cm(2) threshold. The scaling of accelerated proton energies was investigated by varying the thickness of Al targets (down to 50 nm) under 35 angle of laser incidence and with p-polarised light.

Original languageEnglish
Pages (from-to)113-115
Number of pages3
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume653
Issue number1
DOIs
Publication statusPublished - 11 Oct 2011

Keywords

  • laser plasma interaction
  • proton acceleration
  • ion detectors
  • driven
  • plasma
  • beams
  • targets
  • solids

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    Prasad, R., Ter-Avetisyan, S., Doria, D., Quinn, K. E., Romagnani, L., Foster, P. S., Brenner, C. M., Green, J. S., Gallegos, P., Streeter, M. J. V., Carroll, D. C., Tresca, O., Dover, N. P., Palmer, C. A. J., Schreiber, J., Neely, D., Najmudind, Z., McKenna, P., Zepf, M., & Borghesi, M. (2011). Proton acceleration using 50 fs, high intensity ASTRA-Gemini laser pulses. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 653(1), 113-115. https://doi.org/10.1016/j.nima.2011.01.021