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Electron impact cross sections for v = 0-1 vibrational excitation in CO at electron energies of 3 to 100 eVThe paper discusses the measurements of normalized, absolute differential cross-sections for electron-impact vibrational transition in CO. Integral and momentum-transfer cross-sections were obtained from these differential results; incident electron energies were in the 3 to 100 eV range, and the scattering angles were 10 to 135 deg. A comparison of these results with measurements made with pure vibrationally elastic cross-sections in N2, and with the data based on a two-potential theory for electron scattering from diatomic molecules showed that the present CO cross-sections are similar to those in N2. This indicates that the long-range effect of the small CO dipole moment is negligible in promoting vibrational excitation; moreover, a significant peak in the integral and momentum-transfer cross-sections is observed at 20 eV. Finally, the low-energy integral cross-sections are compared with a recent set of swarm data for vibrational excitation.
Document ID
19800056704
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chutjian, A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tanaka, H.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 10, 2013
Publication Date
May 14, 1980
Publication Information
Publication: Journal of Physics B - Atomic and Molecular Physics
Volume: 13
Subject Category
Atomic And Molecular Physics
Accession Number
80A40874
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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