Koinzidenzexperimente zur Untersuchung der Energieübertragung beim Stoß niederenergetischer Elektronen mit Molekülen

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Abstract
Scattering experiments of 70 eV electrons from methane and n-heptane are described. The results, namely energy-loss spectra, and the energy and angular distributions of the ejected electrons of these molecules are compared with those of argon. A coincidence technique is used to determine the energy distributions of the probability for formation of the molecular ions. By subtraction of the distributions from the total energy-loss spectra, the distributions of the superexcited states are obtained. In the case of n-heptane, superexcited states are found up to 20 eV above the first ionization potential.

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