Dissociation rate of molecular hydrogen in highly ionized, low-temperature plasmas
Journal Article
·
· Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)
OSTI ID:5079809
The rate of stepwise dissociation of molecular hydrogen is calculated for plasmas with degrees of ionization ..beta.. = 10/sup -4/ -- 1. For ..beta..< or approx. =10/sup -3/ dissociation is primarily caused by electron-impact excitation and V--V exchange. For ..beta..> or approx. =10/sup -2/ dissociation is caused solely by electron-impact excitation of vibrational states and the rate of dissociation is given by GAMMA/sub d/ = K/sub d//sup e/ n/sub e/ N/sub H2/, where K/sup e//sub d/ is determined by the electron temperature T/sub e/. The dependence of GAMMA/sub d/ on the temperatures of the plasma components and on the degree of dissociation is discussed. The rate of recombination of atoms into hydrogen molecules is estimated.
- Research Organization:
- A. F. Ioffe Physicotechnical Institute, Academy of Sciences of the USSR, Leningrad
- OSTI ID:
- 5079809
- Journal Information:
- Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 27:1; ISSN SPTPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105 -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON DENSITY
ELECTRON TEMPERATURE
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL DENSITY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
HYDROGEN
IONIZATION
MOLECULE COLLISIONS
NONMETALS
PLASMA
RECOMBINATION
VIBRATIONAL STATES
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105 -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON DENSITY
ELECTRON TEMPERATURE
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL DENSITY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
HYDROGEN
IONIZATION
MOLECULE COLLISIONS
NONMETALS
PLASMA
RECOMBINATION
VIBRATIONAL STATES