Ratio of Balmer line intensities resulting from dissociative excitation of molecular hydrogen in an ionizing plasma

Journal Article · Fri Sep 15 04:00:00 EDT 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344289· OSTI ID:5597226

Fujimoto, T; Sawada, K; Takahata, K ^[1]

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1. Department of Engineering Science, Kyoto University, Kyoto 606, Japan (JP)

We have estimated the cross section for the production of excited hydrogen atoms from the emission cross sections for Lyman and Balmer lines when molecular hydrogen is dissociated into excited atoms. We have constructed a collisional-radiative model for the system of ground-state hydrogen molecules, excited hydrogen atoms, and protons, in a plasma and have calculated the population density distribution of the excited states. The resulting emission-line intensity ratios for the Balmer series lines are plotted against electron density. We expect these results to be useful for studies of plasmas containing molecular hydrogen, such as occur in the outer region of tokamak plasmas.

• OSTI ID: 5597226
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 66:6; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
BALMER LINES
CROSS SECTIONS
DISSOCIATION
ELECTRON DENSITY
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROGEN
IONIZATION
MOLECULES
NONMETALS
PLASMA