Electron energy distributions and vibrational population distributions
Conference
·
OSTI ID:5094473
This last year two experimental groups have reported on the vibrational population distributions of hydrogen molecules, H{sub 2}(v{double prime}), generated in a hydrogen discharge. These distributions extend up to the v{double prime} = 5 vibrational level corresponding to the threshold excitation for significant H{sup -} production. A comparison of theoretical modelling distributions with the measured distributions of Stutzin et al. has shown a qualitative agreement taking into account known excitation processes, and fair quantitative agreement when account was taken of the calculated wall relaxation parameters. In this paper these comparisons are extended to include the distributions of Eenshuistra et al., and provide further insights into the formation processes. A novel feature of the Eenshuistra distributions is a five-fold enhancement of the high v{double prime} levels with increased discharge current. These data are shown in Fig. 1 for the 5 Amp'' and 30 Amp'' cases summarized in Table 2, page 104, of Ref. 3. The sources of this enhancement are considered in this paper. 27 refs., 11 figs., 2 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOD
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5094473
- Report Number(s):
- UCRL-102454; CONF-891055--2; ON: DE90005550; CNN: AFOSR-ISSA-89-0039
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ADIABATIC PROCESSES
ALGORITHMS
BOUNDARY CONDITIONS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DATA
DATA PROCESSING
DIFFERENTIAL EQUATIONS
ELECTRON EXCHANGE
ELECTRON TRANSFER
ELEMENTS
ENERGY DENSITY
ENERGY LEVELS
ENERGY LOSSES
EQUATIONS
EXCITED STATES
EXPERIMENTAL DATA
HYDROGEN
HYDROGEN IONS
INFORMATION
IONIZATION
IONS
ISOTROPY
LOSSES
MAGNETS
MATHEMATICAL LOGIC
MAXWELL EQUATIONS
MEASURING METHODS
MIRRORS
NONMETALS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PROCESSING
SIMULATION
TRAJECTORIES
TRANSIENTS
TRITIUM IONS
VIBRATIONAL STATES
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ADIABATIC PROCESSES
ALGORITHMS
BOUNDARY CONDITIONS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DATA
DATA PROCESSING
DIFFERENTIAL EQUATIONS
ELECTRON EXCHANGE
ELECTRON TRANSFER
ELEMENTS
ENERGY DENSITY
ENERGY LEVELS
ENERGY LOSSES
EQUATIONS
EXCITED STATES
EXPERIMENTAL DATA
HYDROGEN
HYDROGEN IONS
INFORMATION
IONIZATION
IONS
ISOTROPY
LOSSES
MAGNETS
MATHEMATICAL LOGIC
MAXWELL EQUATIONS
MEASURING METHODS
MIRRORS
NONMETALS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PROCESSING
SIMULATION
TRAJECTORIES
TRANSIENTS
TRITIUM IONS
VIBRATIONAL STATES