Abstract: Cf-252 is used to excite various gases and the temporal behavior of the decay atomic spectra is measured and related to transition probability. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "Delayed Coincidence Spectroscopy of Fission Fragment Excited Gases" by George Robert Shipman, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.