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Spectral Emissivity of Dense Hydrogen Plasma at Balmer Series Limit
Author(s) -
ErshovPavlov E. A.,
Krat'Ko L. E.,
Chubrik N. I.,
Shimanovitch V. D.
Publication year - 1989
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.2150290307
Subject(s) - balmer series , emissivity , plasma , hydrogen spectral series , hydrogen , atomic physics , electron temperature , materials science , spectral line , plasma parameters , electron , wavelength , plasma diagnostics , ionization , physics , emission spectrum , optics , ion , nuclear physics , quantum mechanics , astronomy , rydberg formula
Spectral emissivity of hydrogen plasma with a nonideality parameter γ = 0.1 ÷ 0.15 has been measured in the wavelength region of 341 ÷ 513 mm using a 6A‐current stabilized d.c. arc at pressures up to 30 bars as the plasma generator. A comparison of the measured data and the data calculated using the Unsöld and Inglis‐Teller formulas shows no evident discrepancies that might be attributed to the additional influence of plasma microfields on the continuum emissivity of hydrogen at Balmer series limit for the range of electron concentrations and temperatures up to 10 18 cm −3 and 14500 K, respectively.