Abstract
In the present paper, the influence of cooling down the neutral gas to a temperature of 77°K on the parameters of ionization waves excited in the positive column of a d. c. glow discharge in neon is studied. After the cooling, the group velocity, phase velocity, frequency and relaxation time of the waves of varietyp decreased and they increased in case of varietiesr ands. The results of measurements were compared to the lifetime of metastable atoms in the case of thep-wave, and to that of atomic ions in the case of ther-wave. The variations of lifetime with temperature correspond to the variations of relaxation times of the waves; the lifetime of metastable atoms is 5 to 7 times longer, the lifetime of atomic ions agrees with the relaxation time fairly well.
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In conclusion, we would like to thank Ing. O. Štirand C.Sc. and T. Růžička for helpfu; discussions and J. Moc for his skillful work in making the discharge tubes.
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Mašek, K., Peřina, V. The influence of neutral gas temperature on the parameters of ionization waves in neon. Czech J Phys 18, 363–375 (1968). https://doi.org/10.1007/BF01689837
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DOI: https://doi.org/10.1007/BF01689837