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The quantum theory and the behavior of slow electrons in gases

Zwicky, F. (1926) The quantum theory and the behavior of slow electrons in gases. Proceedings of the National Academy of Sciences of the United States of America, 12 (7). pp. 461-466. ISSN 0027-8424.

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The new quantum theory(1) is based on the consideration that the only observable frequencies of the atoms and molecules are the so-called jump-frequencies given by the equation ε = hv. In fact the experiments have shown that these are responsible for spectrum lines, anomalous dispersion and inelastic impacts. The revolution frequencies of the electrons in the stationary orbits, as given by the Bohr calculations, it is assumed can never be detected, so that Heisenberg(1) eliminated them from the theory intending to operate with observable data only. There are, however some experiments which have not yet been sufficiently discussed in relation to this problem: namely, the beautiful experiments on the behavior of slow electrons in gases. ("Slow" means that the electrons have less energy than corresponds to a resonance potential of the gas under investigation.) These experiments can be divided into two groups. One class deals with the deviations from the rectilinear motion which the electrons undergo in the field of force of the atoms, while the second class investigates the energy transfer. In this paper we give some considerations on the first type of experiments. The question of the energy transfer will be discussed in a following paper.

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Additional Information:© 1926 by the National Academy of Sciences. Communicated May 31, 1926. [F.Z. was a] Research Fellow in Physics, International Education Board.
Issue or Number:7
Record Number:CaltechAUTHORS:ZWIpnas26b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8873
Deposited By: Tony Diaz
Deposited On:24 Sep 2007
Last Modified:02 Oct 2019 23:55

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