State-to-state rate constants for quenching of xenon 6 p levels by rare gases
Journal Article
·
· Journal of Chemical Physics; (United States)
- Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
State-to-state rate constants have been measured for xenon 6{ital p}(3/2){sub 1,2}, 6{ital p}(5/2){sub 2,3}, 6{ital p}(1/2){sub 1}, and 6{ital s}{prime}(1/2){sub 1} levels quenched by helium, neon, argon, and xenon. Some total rate constants and 6{ital p} radiative transition probabilities have also been measured. The time-dependent fluorescence from pumped and collisionally populated levels following pulsed excitation of a single level is observed. Data for different gas pressures are fit using a rate equation model that includes all relevant levels. Neon is found to have small total rate constants, while xenon has large total rate constants. Both neon and xenon quench to a number of nearby levels. Helium and argon have total rate constants varying greatly with 6{ital p} level. Helium tends to quench to the next lower level while argon usually quenches to many levels.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7069896
- Journal Information:
- Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 96:6; ISSN JCPSA; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
664300 -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
CHEMICAL REACTIONS
COLLISIONS
DE-EXCITATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
FLUORESCENCE
GASES
HELIUM
LUMINESCENCE
NEON
NONMETALS
P STATES
PRESSURE DEPENDENCE
PULSES
RARE GASES
TIME DEPENDENCE
XENON
400201* -- Chemical & Physicochemical Properties
664300 -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
CHEMICAL REACTIONS
COLLISIONS
DE-EXCITATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
FLUORESCENCE
GASES
HELIUM
LUMINESCENCE
NEON
NONMETALS
P STATES
PRESSURE DEPENDENCE
PULSES
RARE GASES
TIME DEPENDENCE
XENON