Abstract
Previous derivations of the momentum transfer cross section (σm) for electrons in mercury vapour from drift velocity (vdr) data (e.g. Nakamura and Lucas, 1978; Elford, 1980a) have been restricted to energies above about 0.1 eV due to the relatively high value of the electron mean energy at the lowest value of E/N for which accurate data can be obtained (E is the electric field strength and N, the vapor number density). The energy exchanged in elastic collisions can be increased and thus the mean energy lowered by the addition of helium. Since σmfor helium is known to high accuracy (Crompton et al., 1970), this is not a significant source of errors in the analysis.
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© 1990 Plenum Press, New York
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England, J.P., Elford, M.T. (1990). The Electron-Mercury Momentum Transfer Cross Section at Low Energies. In: Gallagher, J.W., Hudson, D.F., Kunhardt, E.E., Van Brunt, R.J. (eds) Nonequilibrium Effects in Ion and Electron Transport. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0661-0_34
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DOI: https://doi.org/10.1007/978-1-4613-0661-0_34
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