Excited state kinetics in high pressure gas mixtures of argon and xenon
Thesis/Dissertation
·
OSTI ID:6931144
The time dependence of Ar/sup +/Xe ..-->.. ArXe/sup +/ + hv(328 nm) heteronuclear ion emission in Ar-Xe mixtures was measured following pulsed excitation by a low intensity, high energy electron beam. The time dependence was obtained at pressures of 120 to 3500 Torr and at temperatures ranging from 0 to 80/sub 0/C. The population of the upper ionic state of the transition is found to governed by a dissociation-recombination reaction and is strongly quenched by formation of an unknown triatomic molecular ion of Ar and Xe. The measured dissociation, recombination, and quenching rate constants for Ar/sup +/Xe are (1 +/- 0.3) x 10/sup -12/ cm/sup 3//sec, (1.5 +/- 0.5) x 10/sup -31/ cm/sup 6//sec, and (5 +/- 0.8) x 10/sup -31/ cm/sup 6//sec, respectively. The radiative lifetime was determined to be 200 ns. Least squares fitting of the temperature dependent data yields an apparent activation energy of approx.0.14 eV.
- Research Organization:
- Rice Univ., Houston, TX (USA)
- OSTI ID:
- 6931144
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTIVATION ENERGY
ARGON IONS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
DATA
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
ION COLLISIONS
IONS
MOLECULAR IONS
NONMETALS
NUMERICAL DATA
PRESSURE DEPENDENCE
QUENCHING
RARE GASES
RECOMBINATION
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
XENON
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTIVATION ENERGY
ARGON IONS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
DATA
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
ION COLLISIONS
IONS
MOLECULAR IONS
NONMETALS
NUMERICAL DATA
PRESSURE DEPENDENCE
QUENCHING
RARE GASES
RECOMBINATION
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
XENON