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Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/17870
Title: Cumulative Yields from the 14-MeV Neutron Fission of 238U
Authors: Gorman, David John
Advisor: Tomlinson, R. H.
Department: Chemistry
Keywords: neutron fission;neutron yield;isotopes;mass spectrometry
Publication Date: Oct-1967
Abstract: Isotopic abundances of the elements xenon, krypton, and cesium formed in the 14-Mev neutron fission of 238U have been measured using the mass-spectrometric method. The relative yields of some isotopes of krypton, strontium, zirconium, molybdenum, ruthenium, iodine, xenon, barium, cerium and neodymium were measured using a Ge(Li) detector. The ratios were normalized through isobaric nuclides, and absolute yields were obtained by normalizing the sum of the heavy-mass yields to 100%. A semi-empirical method has been developed for constructing neutron yield curves. Such a curve was used to obtain a primary-yield curve from the cumulative yields reported here. The results indicate that considerable structure might exist in the primary-yield curve at the higher excitation energy.
URI: http://hdl.handle.net/11375/17870
Appears in Collections:Open Access Dissertations and Theses

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