Ion acceleration from ultra thin foils on ASTRA-Gemini laser with 50fs, 1020-1021 W/cm2 pulses

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

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Abstract

We report on experimental investigations of ion acceleration from thin foil targets irradiated with ultra-short (~ 50 fs), high contrast (~1010) and ultra-intense (up to 1021 W/cm2)
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 1020 W/cm2 threshold, and to access new ion acceleration regimes. The scaling of accelerated ion energies was investigated by varying a number of parameters such as target thickness (down to 10 nm), laser light polarization (circular and linear), angle of laser incidence (oblique-350, normal) and laser energy. The effect of target thickness on the ion flux produced was also investigated at 350 and normal laser incidence on target.
Original languageEnglish
Title of host publication37th EPS Conference on Plasma Physics 2010
EditorsC. McKenna
Place of PublicationMulhouse, France
Number of pages4
Volume34A
Publication statusPublished - 1 Dec 2010
Event37th EPS Conference on Plasma Physics 2010, EPS 2010 - Dublin, Ireland
Duration: 21 Jun 201025 Jun 2010

Conference

Conference37th EPS Conference on Plasma Physics 2010, EPS 2010
CountryIreland
CityDublin
Period21/06/1025/06/10

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Keywords

  • ion acceleration
  • ASTRA-Gemini laser
  • ultra thin foils
  • laser pulses
  • high resolution charged-particle radiography
  • astrophysics
  • proton therapy
  • thermonuclear fusion

Cite this

Prasad, R., Ter-Avetisyan, S., Doria, D., Quinn, K. E., Romagnani, L., Foster, P. S., ... Borghesi, M. (2010). Ion acceleration from ultra thin foils on ASTRA-Gemini laser with 50fs, 1020-1021 W/cm2 pulses. In C. McKenna (Ed.), 37th EPS Conference on Plasma Physics 2010 (Vol. 34A). [P2.209] Mulhouse, France.