An investigation of the effects of neutron energy-group structures and resonance treatment in a fusion-fission hybrid reactor fuelling with Tho(2)

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dc.contributor.authorYildiz, K
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2005
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this work, the effects of neutron energy-group structures and resonance treatments on the main integral neutronic parameters are investigated in a fusion-fission hybrid reactor, which has a fast and a thermal blanket fuelling with ThO2. A D-T fusion neutron (14.1 MeV) is used as a neutron source. Fissile zone is cooled: (a) with light water for the moderated blanket and (b) with pressurized helium gas for the fast blanket. The neutronic parameters have been evaluated with and without a resonance treatment for the same blanket compositions for the sake of a consistent comparison. The study has shown that neutron reactions above a threshold energy in fast neutron groups are less sensitive to resonance treatment, such as Li-7(n,alphan')T and (232) Th(n,f). Neutron energy-group structures in the neutron libraries and description of fusion neutron source spectrum mainly affect these reactions. On the other hand, neutron reactions in the resonance and thermal energy groups are sensitive to resonance treatment, such as Li-6(n,alpha)T and Th-232(n,gamma), depending on the resonance structures. In the fast blanket calculations, resonance-based errors are lower and neutron source based errors are higher than in the moderated blanket. Furthermore, a correct description of the fusion neutron source spectrum over several neutron energy groups is essential to calculate fission reaction rates, fission heating density, fusile and fissile breeding rates and neutron leakage accurately. (C) 2004 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.anucene.2004.07.010
dc.identifier.endpage118
dc.identifier.issn0306-4549
dc.identifier.issue1
dc.identifier.scopus2-s2.0-4944241000
dc.identifier.scopusqualityQ1
dc.identifier.startpage101
dc.identifier.urihttps://dx.doi.org/10.1016/j.anucene.2004.07.010
dc.identifier.urihttps://hdl.handle.net/11480/5617
dc.identifier.volume32
dc.identifier.wosWOS:000225928100006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorYildiz, K
dc.language.isoen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofANNALS OF NUCLEAR ENERGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleAn investigation of the effects of neutron energy-group structures and resonance treatment in a fusion-fission hybrid reactor fuelling with Tho(2)
dc.typeArticle

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