EPJ Web of Conferences (Nov 2013)

High Mach-number collisionless shock driven by a laser with an external magnetic field

  • Morita T.,
  • Sakawa Y.,
  • Kuramitsu Y.,
  • Ide T.,
  • Nishio K.,
  • Kuwada M.,
  • Ide H.,
  • Tsubouchi K.,
  • Yoneda H.,
  • Nishida A.,
  • Namiki T.,
  • Norimatsu T.,
  • Tomita K.,
  • Nakayama K.,
  • Inoue K.,
  • Uchino K.,
  • Nakatsutsumi M.,
  • Pelka A.,
  • Koenig M.,
  • Dong Q.,
  • Yuan D.,
  • Gregori G.,
  • Takabe H.

DOI
https://doi.org/10.1051/epjconf/20135915004
Journal volume & issue
Vol. 59
p. 15004

Abstract

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Collisionless shocks are produced in counter-streaming plasmas with an external magnetic field. The shocks are generated due to an electrostatic field generated in counter-streaming laser-irradiated plasmas, as reported previously in a series of experiments without an external magnetic field [T. Morita et al., Phys. Plasmas, 17, 122702 (2010), Kuramitsu et al., Phys. Rev. Lett., 106, 175002 (2011)] via laser-irradiation of a double-CH-foil target. A magnetic field is applied to the region between two foils by putting an electro-magnet (∼10 T) perpendicular to the direction of plasma expansion. The generated shocks show different characteristics later in time (t > 20ns).