Total absorption γ-ray spectroscopy of niobium isomers
The beta-intensity distributions of the decays of Nb-100gs,Nb-100m and Nb-102gs,Nb-102m have been determined using the total absorption gamma-ray spectroscopy technique. The JYFLTRAP double Penning trap system was employed in a campaign of challenging measurements performed with the decay total abso...
| Autores: | , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/13801 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/13801 |
| Access Level: | acceso abierto |
| Palavra-chave: | 539.1 Beta-decay Nuclear-data Spectra Spectrometer Beams Física nuclear 2207 Física Atómica y Nuclear |
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Total absorption γ-ray spectroscopy of niobium isomersFraile Prieto, Luis MarioVedia Fernández, María Victoriaotros, ...539.1Beta-decayNuclear-dataSpectraSpectrometerBeamsFísica nuclear2207 Física Atómica y NuclearThe beta-intensity distributions of the decays of Nb-100gs,Nb-100m and Nb-102gs,Nb-102m have been determined using the total absorption gamma-ray spectroscopy technique. The JYFLTRAP double Penning trap system was employed in a campaign of challenging measurements performed with the decay total absorption gamma-ray spectrometer at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla. Different strategies were applied to disentangle the isomeric states involved, lying very close in energy. The low-spin component of each niobium case was populated through the decay of the zirconium parent, which was treated as a contaminant. We have applied a method to extract this contamination, and additionally we have obtained beta-intensity distributions for these zirconium decays. The beta-strength distributions evaluated with these results were compared with calculations in a quasiparticle random-phase approximation, suggesting a prolate configuration for the ground states of Zr-100,Zr-102. The footprint of the Pandemonium effect was found when comparing our results for the analyses of the niobium isotopes with previous decay data. The beta-intensities of the decay of Nb-102m, for which there were no previous data, were obtained. A careful evaluation of the uncertainties was carried out, and the consistency of our results was validated taking advantage of the segmentation of our spectrometer. The final results were used as input in reactor summation calculations. A large impact on antineutrino spectrum calculations was already reported, and here we detail the significant impact on decay heat calculations.American Physical SocietyUniversidad Complutense de Madrid20192019-08-0920192019-08-09journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/13801reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/138012026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
Total absorption γ-ray spectroscopy of niobium isomers |
| title |
Total absorption γ-ray spectroscopy of niobium isomers |
| spellingShingle |
Total absorption γ-ray spectroscopy of niobium isomers Fraile Prieto, Luis Mario 539.1 Beta-decay Nuclear-data Spectra Spectrometer Beams Física nuclear 2207 Física Atómica y Nuclear |
| title_short |
Total absorption γ-ray spectroscopy of niobium isomers |
| title_full |
Total absorption γ-ray spectroscopy of niobium isomers |
| title_fullStr |
Total absorption γ-ray spectroscopy of niobium isomers |
| title_full_unstemmed |
Total absorption γ-ray spectroscopy of niobium isomers |
| title_sort |
Total absorption γ-ray spectroscopy of niobium isomers |
| dc.creator.none.fl_str_mv |
Fraile Prieto, Luis Mario Vedia Fernández, María Victoria otros, ... |
| author |
Fraile Prieto, Luis Mario |
| author_facet |
Fraile Prieto, Luis Mario Vedia Fernández, María Victoria otros, ... |
| author_role |
author |
| author2 |
Vedia Fernández, María Victoria otros, ... |
| author2_role |
author author |
| dc.contributor.none.fl_str_mv |
Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
539.1 Beta-decay Nuclear-data Spectra Spectrometer Beams Física nuclear 2207 Física Atómica y Nuclear |
| topic |
539.1 Beta-decay Nuclear-data Spectra Spectrometer Beams Física nuclear 2207 Física Atómica y Nuclear |
| description |
The beta-intensity distributions of the decays of Nb-100gs,Nb-100m and Nb-102gs,Nb-102m have been determined using the total absorption gamma-ray spectroscopy technique. The JYFLTRAP double Penning trap system was employed in a campaign of challenging measurements performed with the decay total absorption gamma-ray spectrometer at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla. Different strategies were applied to disentangle the isomeric states involved, lying very close in energy. The low-spin component of each niobium case was populated through the decay of the zirconium parent, which was treated as a contaminant. We have applied a method to extract this contamination, and additionally we have obtained beta-intensity distributions for these zirconium decays. The beta-strength distributions evaluated with these results were compared with calculations in a quasiparticle random-phase approximation, suggesting a prolate configuration for the ground states of Zr-100,Zr-102. The footprint of the Pandemonium effect was found when comparing our results for the analyses of the niobium isotopes with previous decay data. The beta-intensities of the decay of Nb-102m, for which there were no previous data, were obtained. A careful evaluation of the uncertainties was carried out, and the consistency of our results was validated taking advantage of the segmentation of our spectrometer. The final results were used as input in reactor summation calculations. A large impact on antineutrino spectrum calculations was already reported, and here we detail the significant impact on decay heat calculations. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2019-08-09 2019 2019-08-09 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.14352/13801 |
| url |
https://hdl.handle.net/20.500.14352/13801 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
American Physical Society |
| publisher.none.fl_str_mv |
American Physical Society |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
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Docta Complutense |
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Docta Complutense |
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1869406304652492800 |
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15.301629 |