Plasma shifts of the He II H-alpha and P-alpha lines

Details Plasma shifts of the He II H-alpha and P-alpha lines Plasma shifts of the He II H-alpha and P-alpha lines

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrva..33.1291p&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 33, Feb. 1986, p. 1291-1296.

Physics

General Physics

34

H Alpha Line, Helium, Paschen Series, Plasma Diagnostics, Plasma Spectra, Red Shift, Electron Density (Concentration), Electron Impact, Line Spectra, Quadrupoles

Scientific paper

Shift measurements for the H-alpha (1640 A) and P-alpha (4686 A) hydrogenic ion lines of He II have been done over an electron density range 2 x 10 to the 22nd to 2 x 10 to the 23rd/cu m and for an electron temperature of 4 eV. The plasma was produced in a linear Z discharge. Systematic red shifts linear in density are observed. The experimental data are compared with combined theoretical estimates for electron-impact and ion quadrupole effects. The experimental results are in agreement with our earlier results for P-alpha.

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