Collisional quenching of indium (5p/sup 2/ /sup 4/P/sub 1/2/) and indium (6p /sup 2/P) by Ar, H/sub 2/, D/sub 2/, N/sub 2/, and CH/sub 4/

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · J. Chem. Phys.; (United States)

OSTI ID:6266750

Hovis, F E; Gelbwachs, J A

Collisional quenching of In(5p/sup 2/ /sup 4/P/sub 1/2/) and In(6p /sup 2/P) by Ar, H/sub 2/, D/sub 2/, N/sub 2/, and CH/sub 4/ has been measured by laser pumping of the 5p/sup 2/ /sup 4/P/sub 1/2/ level. The quenching cross sections for 5p/sup 2/ /sup 4/P/sub 1/2/ range from 1.6 x 10/sup -16/ cm/sup 2/ for Ar to 37 x 10/sup -16/ cm/sup 2/ for H/sub 2/. The cross sections for quenching the 6p /sup 2/P state range from 0.96 x 10/sup -16/ cm/sup 2/ for Ar to 18 x 10/sup -16/ cm/sup 2/ for H/sub 2/. The radiative lifetimes of the 5p/sup 2/ /sup 4/P/sub 1/2/ and 6p /sup 2/P state were found to be 950 and 104 ns. Population ratios measured under steady-state conditions show that much of the excited-state population resides in the 6s /sup 2/S/sub 1/2/ level after excitation of the 5p/sup 2/ /sup 4/P/sub 1/2/ or 5d /sup 2/D levels.

• Research Organization: The Aerospace Corporation, Chemistry and Physics Laboratory, Los Angeles, California 90009
• OSTI ID: 6266750
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 78:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKANES
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
DE-EXCITATION
DEUTERIUM
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
FLUIDS
FLUORESCENCE
GASES
HYDROCARBONS
HYDROGEN
HYDROGEN ISOTOPES
INDIUM
ISOTOPES
LIGHT NUCLEI
LUMINESCENCE
METALS
METHANE
MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
RADIATIONLESS DECAY
RARE GASES
STABLE ISOTOPES