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Messungen der van der Waals-Wechselwirkung zwischen Edelgasatomen

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Zeitschrift für Physik

Abstract

Total cross sections for collisions of Helium atoms with other rare gases have been measured by modulated molecular beam technique. The results are used to determine the interaction constants of the van der Waals potential (V(r)∼ −C/r 6). For this purpose, an indirect procedure is adopted, since the well known approximation ofMassey andMohr (QC 2/5) is not applicable for Helium scattering experiments at thermal energies.

The van der Waals constants obtained are in agreement with values determined from experimental data on transport properties in gases.

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Wir danken Herrn Prof. W.Paul für die Förderung der vorliegenden Arbeit. Der Deutschen Forschungsgemeinschaft und dem Ministerium für wissenschaftliche Forschung sind wir für finanzielle Unterstützung zu Dank verpflichtet. Ferner danken wir Herrn Prof.Unger für die Gewährung von Rechenzeit auf der IBM 7090 des Instituts für Angewandte Mathematik der Universität Bonn.

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Düren, R., Helbing, R. & Pauly, H. Messungen der van der Waals-Wechselwirkung zwischen Edelgasatomen. Z. Physik 188, 468–479 (1965). https://doi.org/10.1007/BF01339877

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  • DOI: https://doi.org/10.1007/BF01339877

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