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Journal articles
Ion Acceleration by Collisionless Shocks in High-Intensity-Laser–Underdense-Plasma Interaction
M. S. Wei
1
S.P.D Mangles
1
Z. Najmudin
1
B. Walton
1
A. Gopal
1
M. Tatarakis
1
A.E. Dangor
1
E.L. Clark
1, 2
R. G. Evans
1, 2
Sven Fritzler
3
R.J. Clarke
4
C. Hernandez-Gomez
4
David Neely
4
W. B. Mori
5
M. Tzoufras
5
K. Krushelnick
1
1
Blackett Laboratory (Prince Consort Road, South Kensington, London SW7 2AZ - United Kingdom)
- Imperial College London (South Kensington Campus, London SW7 2AZ - United Kingdom)
2
Plasma Physics Department (Aldermaston, Reading RG7 4PR - United Kingdom)
- Atomic Weapons Establishment (France)
3
LOA - Laboratoire d'optique appliquée (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- ENSTA Paris - École Nationale Supérieure de Techniques Avancées (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7639 (France)
4
CLF - Central Laser Facility (Chilton, Didcot, Oxon OX11 0QX - United Kingdom)
- RAL - STFC Rutherford Appleton Laboratory (Harwell Campus, Didcot OX11 0FA - United Kingdom)
- STFC - Science and Technology Facilities Council (Polaris House, North Star Avenue, Swindon SN2 1SZ - United Kingdom)
5
Department of Physics and Astronomy [UCLA, Los Angeles] (Los Angeles, CA 90095-1547 - United States)
- UCLA - University of California [Los Angeles] ( Los Angeles, Californie 90095 - United States)
- University of California (United States)
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.
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00508234
Contributor : Thuy Le <>
Submitted on : Monday, August 2, 2010 - 4:10:22 PM
Last modification on : Monday, September 21, 2020 - 11:34:08 AM
Contributor : Thuy Le <>
Submitted on : Monday, August 2, 2010 - 4:10:22 PM
Last modification on : Monday, September 21, 2020 - 11:34:08 AM
Identifiers
- HAL Id : hal-00508234, version 1
- DOI : 10.1103/PhysRevLett.93.155003
Citation
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⟩
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