Time resolved 360 to 600 nm luminescence produced by the pulse radiolysis of water vapor
Water vapor was excited by a 0.53 MeV pulsed electron beam and examined for luminescence emission in the 360--600 nm region. Spectral lines arising from the Balmer transitions H(n = 4..-->..n = 2), H(n = 5..-->..n = 2), and H(n = 6..-->..n = 2) of the hydrogen atom and the transitions 3p/sup 4/D/sup 0//sub 5/2/..-->..3s/sup 4/P/sub 3/2/, 3p/sup 4/D/sup 0//sub 7/2/..-->.. 3s/sup 4/P/sub 5/2/, and 3p/sup 4/D/sup 0//sub 1/2/..-->..3s/sup 4/P/sub 1/2/ of the O/sup +/ ion were observed. The Balmer lines were found to be quenched by water vapor with rate constants at 293 K of (9.77 +- 0.26) x 10/sup -9/, (10.67 +- 0.45) x 10/sup -9/, and (12.3 +- 2.3) x 10/sup -9/ cm/sup 3/ molecule/sup -1/ s/sup -1/, respectively. The excited O/sup +/ ions were also quenched strongly by water vapor but line intensities were insufficient for rate measurements to be carried out.
- Research Organization:
- Department of Chemistry, University of Canterbury, Christchurch 1, New Zealand
- OSTI ID:
- 5221424
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 80:6; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400600* -- Radiation Chemistry
BALMER LINES
BEAMS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DISSOCIATION
ELECTRON BEAMS
EMISSION SPECTRA
ENERGY RANGE
FLUIDS
GASES
KEV RANGE
KEV RANGE 100-1000
LEPTON BEAMS
PARTICLE BEAMS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SPECTRA
VAPORS
WATER VAPOR