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dc.contributor.authorGuadilla, V.
dc.contributor.authorTain, J. L.
dc.contributor.authorAlgora, A.
dc.contributor.authorAgramunt, J.
dc.contributor.authorJordan, D.
dc.contributor.authorMonserrate, M.
dc.contributor.authorMontaner-Pizá, A.
dc.contributor.authorNácher, E.
dc.contributor.authorOrrigo, S. E. A.
dc.contributor.authorRubio, B.
dc.contributor.authorValencia, E.
dc.contributor.authorEstienne, M.
dc.contributor.authorFallot, M.
dc.contributor.authorLe Meur, L.
dc.contributor.authorBriz, J. A.
dc.contributor.authorCucoanes, A.
dc.contributor.authorPorta, A.
dc.contributor.authorShiba, T.
dc.contributor.authorZakari-Issoufou, A.-A.
dc.contributor.authorÄystö, J.
dc.contributor.authorEronen, T.
dc.contributor.authorGorelov, D.
dc.contributor.authorHakala, J.
dc.contributor.authorJokinen, A.
dc.contributor.authorKankainen, A.
dc.contributor.authorKolhinen, V. S.
dc.contributor.authorKoponen, J.
dc.contributor.authorMoore, I. D.
dc.contributor.authorPenttilä, H.
dc.contributor.authorPohjalainen, I.
dc.contributor.authorReinikainen, J.
dc.contributor.authorReponen, M.
dc.contributor.authorRinta-Antila, S.
dc.contributor.authorRytkönen, K.
dc.contributor.authorSonnenschein, V.
dc.contributor.authorVoss, A.
dc.contributor.authorFraile, L. M.
dc.contributor.authorVedia, V.
dc.contributor.authorGanioglu, E.
dc.contributor.authorGelletly, W.
dc.contributor.authorLebois, M.
dc.contributor.authorWilson, J. N.
dc.contributor.authorMartinez, T.
dc.identifier.citationGuadilla, V., Tain, J. L., Algora, A., Agramunt, J., Jordan, D., Monserrate, M., Montaner-Pizá, A., Nácher, E., Orrigo, S. E. A., Rubio, B., Valencia, E., Estienne, M., Fallot, M., Le Meur, L., Briz, J. A., Cucoanes, A., Porta, A., Shiba, T., Zakari-Issoufou, A.-A., . . . Martinez, T. (2019). Total absorption γ-ray spectroscopy of the β-delayed neutron emitters 137I and 95Rb. <i>Physical Review C</i>, <i>100</i>(4), Article 044305. <a href="" target="_blank"></a>
dc.description.abstractThe decays of the β-delayed neutron emitters 137I and 95Rb have been studied with the total absorption γ-ray spectroscopy technique. The purity of the beams provided by the JYFLTRAP Penning trap at the ion guide isotope separator on-line facility in Jyväskylä allowed us to carry out a campaign of isotopically pure measurements with the decay total absorption γ-ray spectrometer, a segmented detector composed of 18 NaI(Tl) modules. The contamination coming from the interaction of neutrons with the spectrometer has been carefully studied, and we have tested the use of time differences between prompt γ rays and delayed neutron interactions to eliminate this source of contamination. Due to the sensitivity of our spectrometer, we have found a significant amount of β intensity to states above the neutron separation energy that deexcite by γ rays, comparable to the neutron emission probability. The competition between γ deexcitation and neutron emission has been compared with Hauser-Feshbach calculations, and it can be understood as a nuclear structure effect. In addition, we have studied the impact of the β-intensity distributions determined in this work on reactor decay heat and reactor antineutrino spectrum summation calculations. The robustness of our results is demonstrated by a thorough study of uncertainties and with the reproduction of the spectra of the individual modules and the module-multiplicity gated spectra. This work represents the state-of-the-art of our analysis methodology for segmented total absorption spectrometers.en
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review C
dc.rightsIn Copyright
dc.subject.otherbeta decay
dc.subject.othernuclear astrophysics
dc.subject.othernuclear structure&decays
dc.titleTotal absorption γ-ray spectroscopy of the β-delayed neutron emitters 137I and 95Rb
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineYdin- ja kiihdytinfysiikan huippuyksikköfi
dc.contributor.oppiaineCentre of Excellence in Nuclear and Accelerator Based Physicsen
dc.contributor.oppiaineAccelerator Laboratoryen
dc.rights.copyright©2019 American Physical Society
dc.relation.funderEuroopan komissiofi
dc.relation.funderEuropean Commissionen
jyx.fundingprogramEU:n 7. puiteohjelma (FP7)fi
jyx.fundingprogramFP7 (EU's 7th Framework Programme)en
jyx.fundinginformationThis work has been supported by the Spanish Ministerio de Economía y Competitividad under Grants No. FPA201124553, No. AIC-A-2011-0696, No. FPA2014-52823-C2-1P, No. FPA2015-65035-P, No. FPI/BES-2014-068222, and No. FPA2017-83946-C2-1-P and the program Severo Ochoa (SEV-2014-0398); by the Spanish Ministerio de Educación under the Grant No. FPU12/01527; by the European Commission under FP7/EURATOM Contract No. 605203 and FP7/ENSAR Contract No. 262010; and by the Junta para la AmpliacióndeEstudiosProgramme(CSICJAE-Doccontract) cofinanced by European Social Fund (ESF). We acknowledge the support of the UK Science and Technology Facilities Council (STFC) Grant No. ST/P005314/1. This work was also supported by the Academy of Finland under the Finnish Centre of Excellence Programme (Project No. 213503, Nuclear and Accelerator-Based Physics Research at JYFL).

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