Effect of the plasma density scale length on the direction of fast electrons in relativistic laser-solid interactions

نویسندگان

  • Santala
  • Zepf
  • Watts
  • Beg
  • Clark
  • Tatarakis
  • Krushelnick
  • Dangor
  • McCanny
  • Spencer
  • Singhal
  • Ledingham
  • Wilks
  • Machacek
  • Wark
  • Allott
  • Clarke
  • Norreys
چکیده

The angular distribution of bremsstrahlung gamma rays produced by fast electrons accelerated in relativistic laser-solid interaction has been studied by photoneutron activation in copper. We show that the gamma-ray beam moves from the target normal to the direction of the k(laser) vector as the scale length is increased. Similar behavior is found also in 2D particle-in-cell simulations.

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عنوان ژورنال:
  • Physical review letters

دوره 84 7  شماره 

صفحات  -

تاریخ انتشار 2000