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  • The propagation of high current fast electron beam inside the target is possible if its current is neutralized. This phenomenon is not well understood, especially in dielectric targets. In this paper, we study the propagation of high current density electron beam in a plastic target using a particle-in-cell simulation code. The code includes both ionization of the plastic and collisions of newborn electrons. The numerical results are compared with a relatively simple analytical model and a reasonable agreement is found. The temporal evolution of the beam velocity distribution, the spatial density profile, and the propagation velocity of the ionization front are analyzed and their dependencies on the beam density and energy are discussed. The beam energy losses are mainly due to the target ionization induced by the self-generated electric field and the return current.
  • The propagation of high current fast electron beam inside the target is possible if its current is neutralized. This phenomenon is not well understood, especially in dielectric targets. In this paper, we study the propagation of high current density electron beam in a plastic target using a particle-in-cell simulation code. The code includes both ionization of the plastic and collisions of newborn electrons. The numerical results are compared with a relatively simple analytical model and a reasonable agreement is found. The temporal evolution of the beam velocity distribution, the spatial density profile, and the propagation velocity of the ionization front are analyzed and their dependencies on the beam density and energy are discussed. The beam energy losses are mainly due to the target ionization induced by the self-generated electric field and the return current. (en)
  • Šíření hustého svazku rychlých elektronů v pevném nevodivém terči je studováno pomocí PIC simulací. V simulacích jsou zahrnuty procesy ionizace a ohřevu nevodivého terče. (cs)
Title
  • High-current fast electron beam propagation in a dielectric target
  • Šíření svazku rychlých elektronů s vysokou proudovou hustotou v nevodivém terči (cs)
  • High-current fast electron beam propagation in a dielectric target (en)
skos:prefLabel
  • High-current fast electron beam propagation in a dielectric target
  • Šíření svazku rychlých elektronů s vysokou proudovou hustotou v nevodivém terči (cs)
  • High-current fast electron beam propagation in a dielectric target (en)
skos:notation
  • RIV/68407700:21340/07:04141846!RIV08-MSM-21340___
http://linked.open.../vavai/riv/strany
  • 016403-1;016403-15
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(LC528)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 424110
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21340/07:04141846
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • electron beam propagation; ionization of dielectric material (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [EEA9E961AB5E]
http://linked.open...i/riv/nazevZdroje
  • Physical Review E
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 75
http://linked.open...iv/tvurceVysledku
  • Klimo, Ondřej
  • Tikhonchuk, V. T.
  • Debayle, A.
issn
  • 1063-651X
number of pages
http://localhost/t...ganizacniJednotka
  • 21340
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