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Expansion of tungsten ions emitted from laser-produced plasma in axial magnetic and electric fields

  • J. WOŁOWSKI (a1), L. CELONA (a2), G. CIAVOLA (a2), S. GAMMINO (a2), J. KRÁSA (a3), L. LÁSKA (a3), P. PARYS (a1), K. ROHLENA (a3), L. TORRISI (a2) and E. WORYNA (a1)...
Abstract

The experimental results of the investigations on the influence of external magnetic and electric fields on the characteristics of a tungsten ion stream emitted from a plasma produced by the Nd:glass laser (1 J, 1 ns) performed at IPPLM, Warsaw are presented. A negatively biased target up to −15 kV and a magnetic field up to 0.45 T were used in the experiment. A set of ion collectors and an electrostatic cylindrical ion energy analyzer located at small angles with respect to the laser beam axis and at large distances from the target were applied for ion measurements. The effect of an external magnetic field is essential to plasma expansion, but the effect of the retarding potential of the target is very weak in our experimental conditions. The aim of the studies was to prove the possibility of the optimization of ion beam parameters from laser-produced plasma for the particular application as a laser ion source coupled with the electron cyclotron resonance ion source for particle accelerators.

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Corresponding author
Address correspondence and reprint requests to: J. Wołowski, Institute of Plasma Physics and Laser Microfusion, Hery Str. 23, P.O. Box 49, 00-908 Warsaw, Poland. E-mail: wolowski@ifpilm.waw.pl
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Laser and Particle Beams
  • ISSN: 0263-0346
  • EISSN: 1469-803X
  • URL: /core/journals/laser-and-particle-beams
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