Fast-timing measurements in neutron-rich odd-mass zirconium isotopes using LaBr3:Ce detectors coupled with Gammasphere

E. R. Gamba, S. Lalkovski, M. Rudigier, A. M. Bruce, S. Bottoni, M. P. Carpenter, S. Zhu, A. D. Ayangeakaa, J. T. Anderson, T. A. Berry, I. Burrows, R. J. Carroll, P. Copp, M. Carmona Gallardo, D. M. Cullen, T. Daniel, J. P. Greene, L. A. Gurgi, D. J. Hartley, R. IlievaS. Ilieva, R. V.F. Janssens, F. G. Kondev, T. Kröll, G. J. Lane, T. Lauritsen, I. Lazarus, G. Lotay, G. Fernández Martínez, Zs Podolyák, V. Pucknell, M. Reed, P. H. Regan, J. Rohrer, J. Sethi, D. Seweryniak, C. M. Shand, J. Simpson, M. Smolen, E. A. Stefanova, V. Vedia, O. Yordanov

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Citation (Scopus)

    Abstract

    A fast-timing experiment was performed at the Argonne National Laboratory to measure the lifetimes of the lowest lying states of nuclei belonging to the deformed regions around mass number A 110 and A 150. These regions were populated via spontaneous fission of 252Cf and the gamma radiation following the decay of excited states in the fission fragments was measured using 51 Gammasphere detectors coupled with 25 LaBr3:Ce detectors. A brief description of the acquisition system and some preliminary results from the fast-timing analysis of the fission fragment 100Zr are presented. The lifetime value of τ = 840(65) ps was found for the 2+ state in 100Zr consistent within one standard deviation of the adopted value with 791 +26 -35ps. This is associated with a quadrupole deformation parameter of 0.36(2) which is within one standard deviation of the literature value of 0.3556+82 -57.

    Original languageEnglish
    Title of host publication6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, FISSION 2017
    EditorsUlli Koster
    PublisherEDP Sciences
    ISBN (Electronic)9782759890620
    DOIs
    Publication statusPublished - 14 Nov 2018
    Event6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, FISSION 2017 - Chamrousse, France
    Duration: 20 Mar 201724 Mar 2017

    Publication series

    NameEPJ Web of Conferences
    Volume193
    ISSN (Print)2101-6275
    ISSN (Electronic)2100-014X

    Conference

    Conference6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, FISSION 2017
    Country/TerritoryFrance
    CityChamrousse
    Period20/03/1724/03/17

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