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Hydrogen Balmer Spectrum from a High‐Pressure Arc Discharge: Revisited
Author(s) -
Omar B.,
Wierling A.,
Günter S.,
Röpke G.
Publication year - 2007
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200710042
Subject(s) - balmer series , plasma , atomic physics , spectral line , hydrogen , thermodynamic equilibrium , materials science , physics , thermodynamics , emission spectrum , quantum mechanics
The interpretation of hydrogen Balmer spectra emitted from a high‐pressure arc discharge (Radtke and Günther, Contrib. Plasma Phys. 26 , 143 (1986)) is re‐examined. Assuming local thermodynamic equilibrium, synthetic Balmer spectra are calculated for given temperature and density conditions. Radiation transport is accounted for using a one‐dimensional plasma layer model. The lineshape of bound‐bound transitions is determined using a microscopic quantum‐statistical approach. Free‐free and free‐bound contributions are added by taking expressions from literature. Comparing the synthetic spectra with experimental ones, plasma temperature and density conditions are inferred. The plasma parameters are confronted with theoretical results for the compositions of dense plasma. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)