Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, Epiciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Ion Acceleration by Collisionless Shocks in High-Intensity-Laser–Underdense-Plasma Interaction

Abstract : Ion acceleration by the interaction of an ultraintense short-pulse laser with an underdense-plasma has been studied at intensities up to 3×10^20  W/cm^2. Helium ions having a maximum energy of 13.2±1.0  MeV were measured at an angle of 100° from the laser propagation direction. The maximum ion energy scaled with plasma density as n_e^0.70±0.05. Two-dimensional particle-in-cell simulations suggest that multiple collisionless shocks are formed at high density. The interaction of shocks is responsible for the observed plateau structure in the ion spectrum and leads to an enhanced ion acceleration beyond that possible by the ponderomotive potential of the laser alone.
Document type :
Journal articles
Complete list of metadata
Contributor : Thuy Le Connect in order to contact the contributor
Submitted on : Monday, August 2, 2010 - 4:10:22 PM
Last modification on : Wednesday, May 11, 2022 - 3:22:03 PM




M. S. Wei, S.P.D Mangles, Z. Najmudin, B. Walton, A. Gopal, et al.. Ion Acceleration by Collisionless Shocks in High-Intensity-Laser–Underdense-Plasma Interaction. Physical Review Letters, American Physical Society, 2004, 93 (15), pp.155003. ⟨10.1103/PhysRevLett.93.155003⟩. ⟨hal-00508234⟩



Record views