Show simple item record

dc.contributor.authorNowak, Michel
dc.contributor.authorDumonteil, Eric
dc.contributor.authorOnillon, Anthony
dc.contributor.authorZoia, Andrea
dc.contributor.authorMiao, Jilang
dc.contributor.authorForget, Benoit Robert Yves
dc.contributor.authorSmith, Kord S.
dc.date.accessioned2018-10-11T20:04:11Z
dc.date.available2018-10-11T20:04:11Z
dc.date.issued2016-05
dc.date.submitted2016-04
dc.identifier.issn0306-4549
dc.identifier.urihttp://hdl.handle.net/1721.1/118451
dc.description.abstractThe behavior of Monte Carlo criticality simulations is often assessed by examining the convergence of the so-called entropy function. In this work, we shall show that the entropy function may lead to a misleading interpretation, and that potential issues occur when spatial correlations induced by fission events are important. We will support our analysis by examining the higher-order moments of the entropy function and the center of mass of the neutron population. Within the framework of a simplified model based on branching processes, we will relate the behavior of the spatial fluctuations of the fission chains to the key parameters of the simulated system, namely, the number of particles per generation, the reactor size and the migration area. Numerical simulations of a fuel rod and of a whole core suggest that the obtained results are quite general and hold true also for real-world applications. Keywords: Entropy; Clustering; Power iteration; OpenMC; Tripoli-4®en_US
dc.publisherElsevier BVen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/J.ANUCENE.2016.05.002en_US
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivs Licenseen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.sourceProf. Forget via Chris Sherratten_US
dc.titleMonte Carlo power iteration: Entropy and spatial correlationsen_US
dc.typeArticleen_US
dc.identifier.citationNowak, Michel et al. “Monte Carlo Power Iteration: Entropy and Spatial Correlations.” Annals of Nuclear Energy 94 (August 2016): 856–868 © 2016 Elsevier Ltden_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.mitauthorMiao, Jilang
dc.contributor.mitauthorForget, Benoit Robert Yves
dc.contributor.mitauthorSmith, Kord S.
dc.relation.journalAnnals of Nuclear Energyen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-09-25T17:31:59Z
dspace.orderedauthorsNowak, Michel; Miao, Jilang; Dumonteil, Eric; Forget, Benoit; Onillon, Anthony; Smith, Kord S.; Zoia, Andreaen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-1946-2622
dc.identifier.orcidhttps://orcid.org/0000-0003-1459-7672
dc.identifier.orcidhttps://orcid.org/0000-0003-2497-4312
mit.licensePUBLISHER_CCen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record