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First results from ATLANTIS - A new collinear laser spectroscopy setup at Argonne National Laboratory

ORAL

Abstract

Neutron-rich nuclei of refractory metals below the magic number Z=50 exhibit rich phenomena such as deformation, shape coexistence, and hints of triaxiality and thus are ideal testing grounds for theories describing these collective properties. Laser spectroscopy of isotopes and isomers in this region can contribute valuable and complementary data with high precision on nuclear shapes, sizes, and electromagnetic moments.

A new collinear laser spectroscopy setup, ATLANTIS (Argonne Tandem hall LAser beamliNe for aTom and Ion Spectroscopy) was installed at the low-energy branch of the CARIBU fission source at ATLAS, which can deliver suitable beams of these refractory isotopes.

We will present the novel setup and first results, including differential rms charge radii of fifteen short-lived, neutron-rich isotopes of palladium and ruthenium as well as their electromagnetic moments.

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Publication: "Hyperfine structure and electromagnetic moments of neutron-rich Palladium isotopes", manuscript in prep.<br>"Isotope shift and electromagnetic moments of neutron-rich Ruthenium isotopes", manuscript in prep.<br>"A new setup for Laser Spectroscopy on neutron-rich fission fragments", manuscript in prep.

Presenters

  • Bernhard Maass

    Argonne National Laboratory

Authors

  • Bernhard Maass

    Argonne National Laboratory

  • Alex J Brinson

    Massachusetts Institute of Technology

  • Daniel Burdette

    Argonne National Laboratory

  • Jason A Clark

    Argonne National Laboratory

  • Adam J Dockery

    Michigan State University

  • Max Horst

    Institut für Kernphysik, Technische Universität Darmstadt

  • Phillip Imgram

    Institut für Kernphysik, Technische Universität Darmstadt

  • Kristian Koenig

    Institut für Kernphysik, Technische Universität Darmstadt, TU Darmstadt

  • Kei Minamisono

    Michigan State University

  • Patrick Müller

    Institut für Kernphysik, Technische Universität Darmstadt

  • Peter Mueller

    Argonne National Laboratory

  • Wilfried Nörtershäuser

    Institut für Kernphysik, Technische Universität Darmstadt

  • Skyy V Pineda

    Facility for Rare Isotope Beams, Michigan State University, Michigan State University

  • Simon Rausch

    Institut für Kernphysik, Technische Universität Darmstadt

  • Laura Renth

    Institut für Kernphysik, Technische Universität Darmstadt

  • Brooke J Rickey

    Michigan State University

  • Daniel Santiago-Gonzalez

    Argonne National Laboratory

  • Guy Savard

    Argonne National Laboratory

  • Felix Sommer

    Institut für Kernphysik, Technische Universität Darmstadt

  • Adrian A Valverde

    Argonne National Laboratory