Radiation of partially ionized atomic hydrogen
- Departments of Aerospace Engineering and Physics, University of Southern California, Los Angeles, California 90089-1191 (USA)
A nonlinear collisional-radiative model for determination of production of electrons, positive and negative ions, excited atoms, and spectral and continuum line intensities in stationary partially ionized atomic hydrogen is presented (11 000 K{le}{ital T}{sub {ital e}}{le}15 000 K, 10{sup 10} cm{sup {minus}3}{le}{ital N}{sub {ital t}} {le}10{sup 18} cm{sup {minus}3}). Transport of radiation is included by coupling the rate equations for production of the electrons, ions, and excited atoms with the radiation escape factors, which are not constant but depend on plasma conditions. It is found that the contribution of the negative ion emission to the total continuum emission can be important. Comparison of the calculated total continuum emission coefficient, including the negative ion emission, is in good agreement with experimental results.
- OSTI ID:
- 6055864
- Journal Information:
- Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 2:11; ISSN 0899-8221; ISSN PFBPE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700103* -- Fusion Energy-- Plasma Research-- Kinetics
ANIONS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMIC MODELS
ATOMS
CHARGED PARTICLES
COLLISIONAL PLASMA
COLLISIONS
CORRELATIONS
ELECTRON COLLISIONS
ELECTRON TEMPERATURE
ELECTRON-ATOM COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY LEVELS
EXCITED STATES
HYDROGEN
INELASTIC SCATTERING
IONS
MATHEMATICAL MODELS
NONMETALS
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PLASMA
SCATTERING
SPECTRA
STEADY-STATE CONDITIONS
ULTRAHIGH TEMPERATURE