Article (Scientific journals)
Vibrational excitation of methane by 15 and 30 eV intermediate-energy electron impact
Tollet, Françoise; Heinesch, J.; Gingell, J. M. et al.
1996In Journal of Chemical Physics, 106 (14), p. 5990-6000
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Abstract :
[en] Absolute measurements of differential electron-collision cross sections have been performed for the vibrational excitation of methane in its electronic ground state at impact energies of 15 eV and, for the first time, at 30 eV, in the 8°-95° angular range. The normalization to the absolute scale has been carried out using the inelastic/elastic ratios and the absolute elastic differential cross section obtained from a relative flow technique recently developed in our laboratory, in which the elastic differential cross section of methane was compared to that of nitrogen at each impact energy and at each scattering angle. Special attention has been given to the small scattering angular range (≤40°) where minima have been observed in the vibrational cross sections and where simultaneous independent measurements have been made on two different electron spectrometers. © 1997 American Institute of Physics.
Disciplines :
Chemistry
Author, co-author :
Tollet, Françoise ;  Université de Liège > Direction administrative de la faculté des sciences
Heinesch, J.;  Lab. Spectrosc. d'Electrons Diffuses, Université de Liège, Institut de Chimie-Bât.B6c, Sart Tilman par 4000 Liègel, Belgium
Gingell, J. M.;  Department of Physics and Astronomy, University College London, Gower Street, London WC-1E 6BT, United Kingdom
Mason, N. J.;  Department of Physics and Astronomy, University College London, Gower Street, London WC-1E 6BT, United Kingdom
Language :
English
Title :
Vibrational excitation of methane by 15 and 30 eV intermediate-energy electron impact
Publication date :
1996
Journal title :
Journal of Chemical Physics
ISSN :
0021-9606
eISSN :
1089-7690
Publisher :
American Institute of Physics, New York, United States - New York
Volume :
106
Issue :
14
Pages :
5990-6000
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 August 2021

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