Citation
Skinner, Selby Millmore (1933) The Scattering of Slow Electrons in Gases. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/16yh-4903. https://resolver.caltech.edu/CaltechTHESIS:12162024-194258856
Abstract
The earliest attempts to investigate the nature of the atom using an electron stream directed into a gas as the investigating tool were the experiments of Lenard (1), who determined the total cross section offered to an electron by the gas through which it was directed. Using fast cathode rays, and photo-electrons, he covered the high velocity electron range. The results obtained, indicated that the molecular cross section decreased monotonically with increasing electron velocity. Later work of Lenard and others (2) showed that the molecular cross section for fast elections was proportional to the sum of the atomic numbers of the atoms in the molecule. During the same period, the experiments of Bragg and Moseley were laying the foundation for the modern view of the constitution of the atom. The conception developed slowly, culminating in the model advanced by Bohr (3), a very useful and reasonably accurate picture, which has been merely slightly modified conceptually by the newer quantum mechanics.
Item Type: | Thesis (Dissertation (Ph.D.)) |
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Subject Keywords: | (Physics) |
Degree Grantor: | California Institute of Technology |
Division: | Physics, Mathematics and Astronomy |
Major Option: | Physics |
Thesis Availability: | Public (worldwide access) |
Research Advisor(s): |
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Thesis Committee: |
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Defense Date: | 1933 |
Record Number: | CaltechTHESIS:12162024-194258856 |
Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:12162024-194258856 |
DOI: | 10.7907/16yh-4903 |
Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
ID Code: | 16931 |
Collection: | CaltechTHESIS |
Deposited By: | Ben Maggio |
Deposited On: | 16 Dec 2024 23:34 |
Last Modified: | 16 Dec 2024 23:48 |
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