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dc.contributor.authorSaidi, Mohammad Saiden_US
dc.contributor.authorDriscoll, Michael J.en_US
dc.contributor.otherMassachusetts Institute of Technology. Department of Nuclear Engineeringen_US
dc.contributor.otherUnited States. Department of Energyen_US
dc.date.accessioned2014-09-16T23:37:13Z
dc.date.available2014-09-16T23:37:13Z
dc.date.issued1979en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/89737
dc.description"May 1979."en_US
dc.descriptionAlso written as a Ph. D. thesis by the first author and supervised by the second author, MIT Dept. of Nuclear Engineering, 1979en_US
dc.descriptionIncludes bibliographical references (pages 191-193)en_US
dc.description.abstractThe problem of increased resonance capture rates near zone interfaces in fast reactor media has been examined both theoretically and experimentally. An interface traversing assembly was designed, constructed and employed to measure U-238 capture rates near the blanket-reflector interface in the MIT Blanket Test Facility. Prior MIT experiments on a thorium-uranium interface in a blanket assembly were also reanalyzed. Extremely localized fertile capture rate increases of on the order of 50% were measured immediately at the interfaces relative to extrapolation of asymptotic interior traverses, and relative to state-of-the-art (LIB-IV, SPHINX, ANISN/2DB) calculations which employ infinite-medium self-shileding throughout a given zone. A method was developed to compute a spatially varying background scattering cross section per absorber nucleus, a , which takes into account both homogeneous and heterogeneous effec~s on the interface flux transient. This permitted use of the standard self-shielding factor method (Bondarenko f-factors) to generate modified cross sections for thin layers near the interfaces. Calculations of the MIT experiments using this approach yielded good agreement with the measured data.en_US
dc.description.sponsorshipU.S. Department of Energy contract EY-76-S-02-2250en_US
dc.format.extent193 pagesen_US
dc.publisherCambridge, Mass. : Massachusetts Institute of Technology, Dept. of Nuclear Engineering, [1979]en_US
dc.relation.ispartofseriesMITNE ; no. 226en_US
dc.relation.ispartofseriesCOO (Series) ; 2250-37en_US
dc.subject.lccTK9008.M41 N96 no.226en_US
dc.subject.lcshLiquid metal fast breeder reactorsen_US
dc.subject.lcshNuclear fuel elementsen_US
dc.subject.lcshUranium -- Isotopesen_US
dc.titleInterfacial effects in fast reactorsen_US
dc.typeTechnical Reporten_US
dc.identifier.oclc857433719en_US


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