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Numerical simulation of emission spectra from ion beam-heated aluminum plasmas

Published online by Cambridge University Press:  09 March 2009

J. J. MacFarlane
Affiliation:
Fusion Technology Institute, Nuclear Engineering and Engineering Physics Department, University of Wisconsin-Madison, 1500 Johnson Drive, Madison WI 53706
P. Wang
Affiliation:
Fusion Technology Institute, Nuclear Engineering and Engineering Physics Department, University of Wisconsin-Madison, 1500 Johnson Drive, Madison WI 53706

Abstract

Non-local thermodynamic equilibrium radiative transfer calculations have been performed to predict emission spectra from plasma heated by intense proton beams. Multilevel, steady-state atomic rate equations were solved self-consistently with the radiation field to determine excitation and ionization populations. Ion beam effects were, included in the rate equations. Proton-impact ionization cross sections were calculated using a plane wave Born approximation model with Hartree-Fock wave functions for the electrons. We examined the dependence of emission spectra on the temperature and thickness of the plasma. In addition, Kα satellite line spectra were computed to assess its potential as a temperature diagnostic. Calculated Kα spectral results are compared with recent Particle Beam Fusion Accelerator II experimental data.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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