Electron impact excitation of the 3p(/sup 5/P) state of atomic oxygen
Journal Article
·
· J. Chem. Phys.; (United States)
OSTI ID:7187603
The 157.6 nm output from a fluorine excimer laser is focused in a vacuum chamber containing O/sub 2/ gas at a pressure of 20 mTorr. Laser photodissociation of the O/sub 2/ target gas produces 2p/sup 4/(/sup 3/P) and 2p/sup 4/(/sup 1/D) oxygen atoms with unit quantum efficiency. A low-energy electron beam is crossed with the laser beam to produce 3p(/sup 5/P) excited states of OI via electron impact excitation of the 2p/sup 4/(/sup 3/P) ground state. Intensity measurements of the 777.4 nm radiation, corresponding to the 3p(/sup 5/P)--3s(/sup 5/S) transition, are used to calculate the excitation cross section of the 3p(/sup 5/P) state of atomic oxygen. Absolute optical cross sections are reported for a range of incident electron energies less than 18 eV.
- Research Organization:
- University of Arkansas, Fayetteville, Arkansas 72701
- OSTI ID:
- 7187603
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 89:4; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low-energy electron impact excitation of atomic oxygen: Measurement of the 3p( sup 5 P)-3s( sup 5 S) emission cross section
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Electron excitation cross sections for the metastable and resonant levels of Ne(2p/sup 5/3s)
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1987
·
OSTI ID:5219115
Excitation of the OI (3s /sup 5/S/sup 0/--3p /sup 5/P; lambda7774 A) multiplet by electron impact on O/sub 2/
Journal Article
·
Thu Oct 15 00:00:00 EDT 1987
· J. Chem. Phys.; (United States)
·
OSTI ID:6363201
Electron excitation cross sections for the metastable and resonant levels of Ne(2p/sup 5/3s)
Journal Article
·
Tue Oct 01 00:00:00 EDT 1985
· Phys. Rev. A; (United States)
·
OSTI ID:5264551
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
COLLISIONS
CROSS SECTIONS
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
LEPTON BEAMS
NONMETALS
OXYGEN
PARTICLE BEAMS
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
COLLISIONS
CROSS SECTIONS
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
LEPTON BEAMS
NONMETALS
OXYGEN
PARTICLE BEAMS