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Ablation pressure driven by an energetic electron beam in a dense plasma.

Authors
  • Gus'kov, S
  • Ribeyre, X
  • Touati, M
  • Feugeas, J-L
  • Nicolaï, Ph
  • Tikhonchuk, V
Type
Published Article
Journal
Physical Review Letters
Publisher
American Physical Society
Publication Date
Dec 21, 2012
Volume
109
Issue
25
Pages
255004–255004
Identifiers
PMID: 23368476
Source
Medline
License
Unknown

Abstract

An intense beam of high energy electrons may create extremely high pressures in solid density materials. An analytical model of ablation pressure formation and shock wave propagation driven by an energetic electron beam is developed and confirmed with numerical simulations. In application to the shock-ignition approach in inertial confinement fusion, the energy transfer by fast electrons may be a dominant mechanism of creation of the igniting shock wave. An electron beam with an energy of 30 keV and energy flux 2-5 PW/cm(2) can create a pressure amplitude more than 300 Mbar for a duration of 200-300 ps in a precompressed solid material.

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