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A pressure-shift study of electron scattering in dense hydrogen—argon gas mixtures

✍ Scribed by U. Asaf; S. Felps; K. Rupnik; S.P. McGlynn


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
286 KB
Volume
212
Category
Article
ISSN
0009-2614

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✦ Synopsis


Rydberg absorption spectra of methyl iodide, CH,I, in hydrogen-argon binary mixtures of density (2.16-3.14) x 10" cm-3 are reported. The Rydberg energy shifts, normalized to a total density of 1 X 1021 cmm3, vary linearly with the mole fraction of the binary mixture. Reservations concerning this linearity arc elaborated. The relationship of scattering lengths to cross sections for binary scatterers is discussed: cross sections, as obtained from mobility measurements, are additive for binaries whereas, for pressure-shift measurements, it is scattering lengths which are additive.


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