High-precision mass measurements and production of neutron-deficient isotopes using heavy-ion beams at IGISOL

M. Vilén, A. Kankainen, P. Bączyk, L. Canete, J. Dobaczewski, T. Eronen, S. Geldhof, A. Jokinen, M. Konieczka, J. Kostensalo, I. D. Moore, D. A. Nesterenko, H. Penttilä, I. Pohjalainen, M. Reponen, S. Rinta-Antila, A. de Roubin, W. Satuła, and J. Suhonen
Phys. Rev. C 100, 054333 – Published 26 November 2019

Abstract

An upgraded ion-guide system for the production of neutron-deficient isotopes with heavy-ion beams has been commissioned at the IGISOL facility with an Ar36 beam on a Ninat target. It was used together with the JYFLTRAP double Penning trap to measure the masses of Zr82, Nb84, Mo86, Tc88, and Ru89 ground states and the isomeric state Tcm88. Of these, Ru89 and Tcm88 were measured for the first time. The precision of measurements of Zr82, Nb84, and Tc88 was significantly improved. The literature value for Mo86 was verified. The measured states in Tc88 were compared to shell-model calculations and additional constraints on the spins and level scheme were obtained. The masses of Mo82 and Ru86 have been predicted using the measured masses of their mirror partners and theoretical mirror displacement energies, resulting in more tightly bound nuclei with smaller atomic mass uncertainties than reported in the literature.

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  • Received 15 July 2019

DOI:https://doi.org/10.1103/PhysRevC.100.054333

©2019 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

M. Vilén1,*, A. Kankainen1, P. Bączyk2, L. Canete1, J. Dobaczewski2,3,4, T. Eronen1, S. Geldhof1, A. Jokinen1, M. Konieczka2, J. Kostensalo1, I. D. Moore1, D. A. Nesterenko1, H. Penttilä1, I. Pohjalainen1, M. Reponen1, S. Rinta-Antila1, A. de Roubin1, W. Satuła2,4, and J. Suhonen1

  • 1University of Jyväskylä, Post Office Box 35, FI-40014 Jyväskylä, Finland
  • 2Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, ul. Pasteura 5, PL-02-093 Warsaw, Poland
  • 3Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
  • 4Helsinki Institute of Physics, University of Helsinki, Post Office Box 64, FI-00014 Helsinki, Finland

  • *markus.k.vilen@student.jyu.fi

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Issue

Vol. 100, Iss. 5 — November 2019

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