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dc.contributor.author | Berglöf, Carl | es_ES |
dc.contributor.author | Fernández Ordóñez, Manuel | es_ES |
dc.contributor.author | Villamarín, David | es_ES |
dc.contributor.author | Bécares, Vicente | es_ES |
dc.contributor.author | González Romero, Enrique M. | es_ES |
dc.contributor.author | Bournos, Victor | es_ES |
dc.contributor.author | Muñoz-Cobo González, José Luís | |
dc.date.accessioned | 2015-06-18T07:09:38Z | |
dc.date.available | 2015-06-18T07:09:38Z | |
dc.date.issued | 2011-02 | |
dc.identifier.issn | 0306-4549 | |
dc.identifier.uri | http://hdl.handle.net/10251/51862 | |
dc.description.abstract | [EN] Neutron noise measurements based on the Rossi-α and Feynman-α methodologies have been performed in a heterogeneous subcritical system. It is shown that the traditional single alpha-mode formulations of the Rossi-α and Feynman-α methods are not applicable due to the presence of higher alpha-modes. Formalisms taking into account multiple alpha-modes are applied resulting in satisfactory results. Three alpha-modes could be identified using the Rossi-α method, whereas only two could be obtained using the Feynman-α method. In the Feynman-α case, the possibility to obtain the fastest decaying alpha-mode was diminished due to detector dead time effects. It was found that the slowest decaying alpha-mode does not exactly correspond to the prompt decay found in pulsed neutron source measurements, which confirms the results of previous studies. Strengths and weaknesses of the multiple alpha-mode Rossi-α and Feynman-α methods observed in this study are pointed out. | es_ES |
dc.description.sponsorship | This work was supported by IP-EUROTRANS contract no. FI6 W-CT2005-516520, the ENRESA-CIEMAT agreement for the Transmutacion Aplicada a los Residuos Radiactivos de Alta Actividad, Svensk Karnbranslehantering AB (SKB, the Swedish Nuclear Fuel and Waste Management Co) and the Swedish Institute through the Visby program. | |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier Masson | es_ES |
dc.relation.ispartof | Annals of Nuclear Energy | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Neutron noise experiment | es_ES |
dc.subject | Auto-correlation | es_ES |
dc.subject | Rossi-α | es_ES |
dc.subject | Variance-to-mean | es_ES |
dc.subject | Feynman-α | es_ES |
dc.subject | Reactivity determination | es_ES |
dc.subject.classification | INGENIERIA NUCLEAR | es_ES |
dc.title | Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.anucene.2010.11.009 | |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP6/516520/EU/European research Programme for the transmutation of high level nuclear waste in an accelerator driven system/EUROTRANS/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear | es_ES |
dc.description.bibliographicCitation | Berglöf, C.; Fernández Ordóñez, M.; Villamarín, D.; Bécares, V.; González Romero, EM.; Bournos, V.; Muñoz-Cobo González, JL. (2011). Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes. Annals of Nuclear Energy. 38(2-3):194-202. doi:10.1016/j.anucene.2010.11.009 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.anucene.2010.11.009 | es_ES |
dc.description.upvformatpinicio | 194 | es_ES |
dc.description.upvformatpfin | 202 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 38 | es_ES |
dc.description.issue | 2-3 | es_ES |
dc.relation.senia | 39666 | |
dc.identifier.eissn | 1873-2100 | |
dc.contributor.funder | European Commission |