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Title: Stopping and transport of fast electrons in superdense matter

Studied is the stopping and transport of relativistic fast electrons in the vicinity of compressed dense plasma core relevant to fast ignition. Electromagnetic cascade Monte-Carlo is coupled to 2D-PIC simulation. The 2D PIC simulates input electron energy spectrum and angular dependence. The electron energy distributions after passing through the plasma core are calculated at different viewing angles, which well agree with the experiment below several MeV energy range. The implications of calculated results as to collisional damping on several MeV electrons are discussed with the theory based on the stopping power model. The spatial distribution of plasma temperature is also estimated via deposited energy by fast electrons, showing the strong heating at the core surface.
Authors:
; ; ; ;  [1]
  1. Department of Electrical, Electronic, and Information Engineering, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka, 565-0871 (Japan)
Publication Date:
OSTI Identifier:
22220679
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 8; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON TEMPERATURE; ELECTRONS; ENERGY SPECTRA; ION TEMPERATURE; MEV RANGE; MONTE CARLO METHOD; PLASMA SIMULATION; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; SPATIAL DISTRIBUTION; STOPPING POWER; THERMONUCLEAR IGNITION