TITLE

# The influence of multiple scattering processes on the electron mobility in low density methanol gas

AUTHOR(S)
Asaad, A. N.; Klahn, Th.; Krebs, P.
PUB. DATE
November 1996
SOURCE
Journal of Chemical Physics;11/15/1996, Vol. 105 Issue 19, p8633
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The electron drift mobility Î¼ has been measured in CH3OH gas in the temperature range 303â‰¤Tâ‰¤363 K and in the number density range 2.4Ã—1017â‰¤nâ‰¤2.1Ã—1019 cm-3. It is usually assumedâ€”although there is no foundation for itâ€”that at such low gas densities the â€˜â€˜zero-fieldâ€™â€™ density-normalized mobility (Î¼n) does not depend on n, i.e. it can be described by the so-called Lorentz single collision approximation [see, e.g., N. Gee and G. R. Freeman, Can. J. Chem. 61, 1664 (1983)]. We observed, however, a density dependence of (Î¼n) which can be explained approximately in terms of coherent and incoherent multiple scattering corrections where the coherent contribution due to correlations between the scatterers predominates at lower temperatures. Â© 1996 American Institute of Physics.
ACCESSION #
7645349

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