skip to main content

Title: Study of stopping power for a proton moving in a plasma with arbitrary degeneracy

Excitation of bulk solid electrons with arbitrary degeneracy, by external charged particles, is investigated by a two-dimensional nonlinear quantum hydrodynamic (QHD) model. The nonlinear stopping power and wake potential are calculated by solving the nonlinear QHD equations with the flux corrected transport numerical method. Two cases of fully degenerated and partially degenerated electrons are compared and discussed in the same self-consistent QHD model. Our results are consistent with the well known dielectric calculation of the stopping power at higher velocity, but include the nonlinear terms of the interactions and give larger stopping power at smaller velocity.
Authors:
; ;  [1]
  1. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)
Publication Date:
OSTI Identifier:
22218513
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 10; 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; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHARGED PARTICLES; COMPARATIVE EVALUATIONS; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; ELECTRONS; EXCITATION; HYDRODYNAMICS; NONLINEAR PROBLEMS; NUMERICAL ANALYSIS; PLASMA; POTENTIALS; PROTONS; STOPPING POWER; TWO-DIMENSIONAL CALCULATIONS