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dc.contributor.authorKotlyar, Den
dc.contributor.authorAufiero, Men
dc.contributor.authorShwageraus, Evgenien
dc.contributor.authorFratoni, Men
dc.date.accessioned2018-12-13T00:30:24Z
dc.date.available2018-12-13T00:30:24Z
dc.date.issued2017-04-01en
dc.identifier.issn0306-4549
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286765
dc.description.abstract© 2016 Coupled Monte Carlo (MC) methods are becoming widely used in reactor physics analysis and design. Many research groups therefore, developed their own coupled MC depletion codes. Typically, in such coupled code systems, neutron fluxes and cross sections are provided to the depletion module by solving a static neutron transport problem. These fluxes and cross sections are representative only of a specific time-point. In reality however, both quantities would change through the depletion time interval. Recently, Generalized Perturbation Theory (GPT) equivalent method that relies on collision history approach was implemented in Serpent MC code. This method was used here to calculate the sensitivity of each nuclide and reaction cross section due to the change in concentration of every isotope in the system. The coupling method proposed in this study also uses the substep approach, which incorporates these sensitivity coefficients to account for temporal changes in cross sections. As a result, a notable improvement in time dependent cross section behavior was obtained. The method was implemented in a wrapper script that couples Serpent with an external depletion solver. The performance of this method was compared with other existing methods. The results indicate that the proposed method requires substantially less MC transport solutions to achieve the same accuracy.
dc.relation.isreplacedby1810/295935
dc.relation.isreplacedbyhttps://www.repository.cam.ac.uk/handle/1810/295935
dc.titleA perturbation-based susbtep method for coupled depletion Monte-Carlo codesen
dc.typeArticle
prism.endingPage244
prism.publicationDate2017en
prism.publicationNameAnnals of Nuclear Energyen
prism.startingPage236
prism.volume102en
dc.identifier.doi10.17863/CAM.34072
dcterms.dateAccepted2016-12-16en
rioxxterms.versionofrecord10.1016/j.anucene.2016.12.022en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-04-01en
dc.contributor.orcidShwageraus, Evgeni [0000-0002-7309-4920]
dc.identifier.eissn1873-2100
rioxxterms.typeJournal Article/Reviewen
rioxxterms.freetoread.startdate2018-04-01


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