High-current fast electron beam propagation in a dielectric target
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F07%3A04141846" target="_blank" >RIV/68407700:21340/07:04141846 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
High-current fast electron beam propagation in a dielectric target
Original language description
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.
Czech name
Šíření svazku rychlých elektronů s vysokou proudovou hustotou v nevodivém terči
Czech description
Šíření hustého svazku rychlých elektronů v pevném nevodivém terči je studováno pomocí PIC simulací. V simulacích jsou zahrnuty procesy ionizace a ohřevu nevodivého terče.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LC528" target="_blank" >LC528: Centre of Laser Plasma</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review E
ISSN
1063-651X
e-ISSN
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Volume of the periodical
75
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
"016403-1"-"016403-15"
UT code for WoS article
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EID of the result in the Scopus database
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