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New Antineutrino Energy Spectra Predictions from the Summation of Beta Decay Branches of the Fission Products

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New Antineutrino Energy Spectra Predictions from the Summation of Beta Decay Branches of the Fission Products

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dc.contributor.author	Fallot, M.
dc.contributor.author	Cormon, S.
dc.contributor.author	Estienne, M.
dc.contributor.author	Algora, Alejandro
dc.contributor.author	Bui, V.M.
dc.contributor.author	Cucoanes, A.
dc.contributor.author	Elnimr, M.
dc.contributor.author	Giot, L.
dc.contributor.author	Jordán Martín, María Dolores
dc.contributor.author	Martino, J.
dc.contributor.author	Onillon, A.
dc.contributor.author	Porta, Amanda
dc.contributor.author	Pronost, G.
dc.contributor.author	Remoto, A.
dc.contributor.author	Taín Enríquez, José Luis
dc.contributor.author	Yermia, F.
dc.contributor.author	Zakari-Issoufou, A.-A.
dc.date.accessioned	2015-11-05T09:05:50Z
dc.date.available	2015-11-05T09:05:50Z
dc.date.issued	2012
dc.identifier.citation	Fallot, M. Cormon, S. Estienne, M. Algora, Alejandro Bui, V.M. Cucoanes, A. Elnimr, M. Giot, L. Jordán Martín, María Dolores Martino, J. Onillon, A. Porta, Amanda Pronost, G. Remoto, A. Taín Enríquez, José Luis Yermia, F. Zakari-Issoufou, A.-A. 2012 New Antineutrino Energy Spectra Predictions from the Summation of Beta Decay Branches of the Fission Products Physical Review Letters 109 20 202504
dc.identifier.uri	http://hdl.handle.net/10550/48051
dc.description.abstract	In this Letter, we study the impact of the inclusion of the recently measured beta decay properties of the Tc-102;104;105;106;107, Mo-105, and Nb-101 nuclei in an updated calculation of the antineutrino energy spectra of the four fissible isotopes U-235,U-238 and Pu-239,Pu-241. These actinides are the main contributors to the fission processes in pressurized water reactors. The beta feeding probabilities of the above-mentioned Tc, Mo, and Nb isotopes have been found to play a major role in the gamma component of the decay heat of Pu-239, solving a large part of the gamma discrepancy in the 4-3000 s range. They have been measured by using the total absorption technique, insensitive to the pandemonium effect. The calculations are performed by using the information available nowadays in the nuclear databases, summing all the contributions of the beta decay branches of the fission products. Our results provide a new prediction of the antineutrino energy spectra of U-235, Pu-239,Pu-241, and, in particular, U-238 for which no measurement has been published yet. We conclude that new total absorption technique measurements are mandatory to improve the reliability of the predicted spectra.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2012, vol. 109, num. 20, p. 202504
dc.subject	Física nuclear
dc.title	New Antineutrino Energy Spectra Predictions from the Summation of Beta Decay Branches of the Fission Products
dc.type	journal article	es_ES
dc.date.updated	2015-11-05T09:05:50Z
dc.identifier.doi	10.1103/PhysRevLett.109.202504
dc.identifier.idgrec	084349
dc.rights.accessRights	open access	es_ES