Polarization and ion shifts of ionized-helium lines in dense plasmas.

Details Polarization and ion shifts of ionized-helium lines in dense plasmas. Polarization and ion shifts of ionized-helium lines in dense plasmas.

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jqsrt..43..415b&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 43, No. 5, p. 415 - 423

Computer Science

1

Helium: Atomic Processes, Helium: Plasma

Scientific paper

Polarization and ion shifts of ionized-helium lines in dense plasmas are examined by using two methods. The first requires an a priori calculation of line profiles, while the second, which is more tractable, only requires a weighting of line-component energies by their respective intensities. Both methods show discrepancies of 10 - 15% for the plasma parameters investigated (1018 electrons cm-3 and 4 eV). Comparisons of the results with recently published experimental data show good agreement for a temperature of 4 eV and densities in the range 1017 - 8×1017 electrons cm-3. The polarization (red) shift is found to be larger than the ion (blue) shift.

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