Energetic proton generation in ultra-intense laser–solid interactions

Wilks, S. C.; Langdon, A. B.; Cowan, T. E.; Roth, M.; Singh, M.; Hatchett, S.; Key, M. H.; Pennington, D.; MacKinnon, A.; Snavely, R A

doi:10.1063/1.1333697

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Energetic proton generation in ultra-intense laser–solid interactions

Author(s): S. C. Wilks , A. B. Langdon , T. E. Cowan , M. Roth , M. Singh , S. Hatchett , M. H. Key , D. Pennington , A. MacKinnon , R. A. Snavely

Publication date Created: February 2001

Publication date (Print): February 2001

Journal: Physics of Plasmas

Publisher: AIP Publishing

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Absorption of ultra-intense laser pulses.

Wilks, Kruer, Tabak … (1992)

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Intense High-Energy Proton Beams from Petawatt-Laser Irradiation of Solids

R Snavely, M. Key, S. Hatchett … (2000)

An intense collimated beam of high-energy protons is emitted normal to the rear surface of thin solid targets irradiated at 1 PW power and peak intensity 3x10(20) W cm(-2). Up to 48 J ( 12%) of the laser energy is transferred to 2x10(13) protons of energy >10 MeV. The energy spectrum exhibits a sharp high-energy cutoff as high as 58 MeV on the axis of the beam which decreases in energy with increasing off axis angle. Proton induced nuclear processes have been observed and used to characterize the beam.