Zusammenfassung
The total ionization cross-sections of methane and propane molecules are measured for impact of 10-28 keV electrons. The cross-sections are found to follow the variation shown by Bethe formula as a function of electron impact energy. Also, the present results compare well with the available data in the literature. Further, the measured cross-sections of the above hydrocarbon molecules are found to correlate strongly to the total number of molecular electrons and to the molecular dipole polarizability. (c) 2006 Elsevier B.V. All rights reserved.
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