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The Conditions Necessary for the Absorption of Ultra-Short Waves in Hydrogen


Alexander, Charles Kirkwood (1937) The Conditions Necessary for the Absorption of Ultra-Short Waves in Hydrogen. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/X28V-HB61.


A review is given of the work published to date on the absorption of ultra-short radio waves in excited hydrogen. A fairly detailed quantum mechanical analysis is given of the whole problem of intensity ratios for the Balmer line components. Theoretical intensity ratios are calculated; and the application of these results to the experimental problem is pointed out, together with the necessity for making preliminary investigations of the experiment values of these ratios.

The experiment described measured the values of the intensity ratios for Hα and Hβ at five different pressures, by means an analysis with a spectrograph crossed with a Fabry-Perot interferometer.

A discussion is given of the significance of the measured values, and from them predictions have been made concerning the probable success of an experiment to measure the absorption of ultra-short waves in hydrogen.

Item Type:Thesis (Dissertation (Ph.D.))
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):
  • Millikan, Robert Andrews
Thesis Committee:
  • Millikan, Robert Andrews (chair)
  • Potapenko, Gennady W.
  • Epstein, Paul Sophus
  • Houston, William Vermillion
  • Bowen, Ira Sprague
  • Zwicky, Fritz
  • Tolman, Richard C.
  • Bell, Richard William
Defense Date:1937
Record Number:CaltechTHESIS:03012018-132848896
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10740
Deposited By: Mel Ray
Deposited On:02 Mar 2018 23:26
Last Modified:16 Aug 2023 23:17

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