Abstract
THE very large negative ion mobility observed by Malkin and Schultz1 and by Williams2 in liquid argon (about 10 cm2/V.sec) has been interpreted as indicating the existence of free electrons in this liquid. Estimates of the elastic collision cross-section by these authors on a basis of classical kinetic theory appeared to indicate that the liquid could not be considered as a compressed gas, but a comparative study of electron drift velocity data for mixtures of gaseous argon and small concentrations of molecular impurities showed that these earlier interpretations may be in error3.
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References
Malkin, M. S., and Schultz, H. L., Phys. Rev., 83, 1051 (1951).
Williams, R. L., Canad. J. Phys., 35, 134 (1957).
Swan, D. W., Proc. Phys. Soc., 76, 36 (1960).
Bortner, T. E., Hurst, G. S., and Stone, W. G., Rev. Sci. Instr., 28, 103 (1957).
Uman, H. A., and Warfield, G., Phys. Rev., 120, 1542 (1960).
Henshaw, D. G., Phys. Rev., 105, 976 (1957).
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SWAN, D. Electron Drift Velocity in Liquid Argon and Argon–Nitrogen Mixtures. Nature 196, 977–978 (1962). https://doi.org/10.1038/196977a0
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DOI: https://doi.org/10.1038/196977a0
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