Energy correlations of prompt neutrons from 252Cf fission

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dc.contributor.advisorBrooks, F Den_ZA
dc.contributor.authorWhittal, David Marken_ZA
dc.date.accessioned2016-03-17T07:19:35Z
dc.date.available2016-03-17T07:19:35Z
dc.date.issued1983en_ZA
dc.description.abstractMeasurements have been made of the neutron-neutron energy correlations for coincident neutrons emitted in the spontaneous fission of ²⁵²Cf. The hypothesis that cooling of the fission fragments during the cascade evaporation of prompt neutrons affects the energies of successive neutrons in a cascade has been investigated by a comparison of the energy correlations of coincident neutrons from the same fragment with those of coincident neutrons from opposite fragments in the same fission. It is found that the energies of coincident neutrons are posftively correlated and that the correlation coefficient is greater for neutrons from opposite fragments than for neutrons from the same fragment. This provides a sensitive test of the nature of neutron emission in an evaporation cascade. The energy correlations of random (noncoincidental) neutrons have also been investigated and are found to show similar but smaller correlation trends. It is concluded that there is some evidence for the cascade cooling effect on the energies of prompt fission neutrons.en_ZA
dc.identifier.apacitationWhittal, D. M. (1983). <i>Energy correlations of prompt neutrons from 252Cf fission</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/17906en_ZA
dc.identifier.chicagocitationWhittal, David Mark. <i>"Energy correlations of prompt neutrons from 252Cf fission."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 1983. http://hdl.handle.net/11427/17906en_ZA
dc.identifier.citationWhittal, D. 1983. Energy correlations of prompt neutrons from 252Cf fission. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Whittal, David Mark AB - Measurements have been made of the neutron-neutron energy correlations for coincident neutrons emitted in the spontaneous fission of ²⁵²Cf. The hypothesis that cooling of the fission fragments during the cascade evaporation of prompt neutrons affects the energies of successive neutrons in a cascade has been investigated by a comparison of the energy correlations of coincident neutrons from the same fragment with those of coincident neutrons from opposite fragments in the same fission. It is found that the energies of coincident neutrons are posftively correlated and that the correlation coefficient is greater for neutrons from opposite fragments than for neutrons from the same fragment. This provides a sensitive test of the nature of neutron emission in an evaporation cascade. The energy correlations of random (noncoincidental) neutrons have also been investigated and are found to show similar but smaller correlation trends. It is concluded that there is some evidence for the cascade cooling effect on the energies of prompt fission neutrons. DA - 1983 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1983 T1 - Energy correlations of prompt neutrons from 252Cf fission TI - Energy correlations of prompt neutrons from 252Cf fission UR - http://hdl.handle.net/11427/17906 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17906
dc.identifier.vancouvercitationWhittal DM. Energy correlations of prompt neutrons from 252Cf fission. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 1983 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17906en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Physicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPhysicsen_ZA
dc.subject.otherNeutronsen_ZA
dc.subject.otherNuclear fissionen_ZA
dc.titleEnergy correlations of prompt neutrons from 252Cf fissionen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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