Abstract
We present calculations of the electron transport coefficients in He, Ne and Ar, based on the density gradient expansion theory. Of particular interest is the skewness coefficient D3. The arrival time spectra (ATS) are computed for typical drift tube conditions in order to assess the measurability of the higher-order transport coefficients. We show that D3is measurable and that present experiments have the capability of resolving it from the ATS. The reported measured data on D3, however, show large non-hydrodynamic behavior. An analysis of the TOF density profile based on a nonlinear continuity equation is also presented. The significance of including higher-order transport effects, either through the use of higher-order coefficients or the use of nonlinear continuity equation, is discussed.
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© 1990 Plenum Press, New York
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Penetrante, B.M., Bardsley, J.N. (1990). Higher-Order Electron Transport in Gases. 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_4
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DOI: https://doi.org/10.1007/978-1-4613-0661-0_4
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