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DC Field | Value | Language |
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dc.contributor.advisor | Thode, H. G. | - |
dc.contributor.author | Young, Beverly George | - |
dc.date.accessioned | 2018-11-09T02:14:58Z | - |
dc.date.available | 2018-11-09T02:14:58Z | - |
dc.date.issued | 1958-10 | - |
dc.identifier.uri | http://hdl.handle.net/11375/23514 | - |
dc.description.abstract | The absolute abundances of fission-product xenon and krypton isotopes in six uranium minerals were determined mass spectrometrically using the isotope dilution technique. The fission products were resolved into a U spontaneous fission component, a U 235 neutron-induced fission component, and a U 238 neutron-induced fission component. The presence of U 238 of neutron-induced fission indicated that t he neutron energies in uranium minerals were higher than had been suspected. Internal consistency in the analysis was achieved only when the I 29 yield in u235 thermal neutron fission reported by Purkayastha and Martin was lowered by 20%. The number of U 238 spontaneous fissions was calculated from the lead age, U 238 content, and the U 238 pontaneous fission half life. A comparison of the number of fission products from U 238 spontaneous fission and the number of spontaneous fissions in each of the six minerals showed that five of the six minerals had lost large portions of their noble gases. A fractionation of krypton relative to xenon accompanied this loss. The results obtained for the sixth mineral indicated little or no loss of xenon and krypton. Absolute yields for U 238 spontaneous fission were therefore determined from an analysis of this mineral. | en_US |
dc.language.iso | en | en_US |
dc.subject | absolute yields | en_US |
dc.subject | xenon | en_US |
dc.subject | krypton | en_US |
dc.subject | spontaneous fission | en_US |
dc.title | The Absolute Yields of Xenon and Krypton in U 238 Spontaneous Fission | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | Physics | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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young_beverley_g_1958oct_doctors.pdf | 32.8 MB | Adobe PDF | View/Open |
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