Mass measurement of Re-190

Mark Griffiths, Carl Wheldon, Tz Kokalova, Anthony Turner, Stuart Pirrie, Victor Ziman, Nicholas Ashwood, Jonathan Malcolm, Matthew Barr, Martin Freer, Thomas Faestermann, Hans-Friedrich Wirth, Ralf Hertenberger, R Gernhäuser, R Krücken

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Abstract

In this paper, a measurement of the atomic mass and mass excess of 19075Re are presented. This isotope and 19277Ir were produced at the Maier-Leibnitz Laboratory (MLL) in Munich in the192Os(d, a)190Re and 194Pt(d, a)192Ir reactions. The Q3D magnetic spectrograph was used to measure the momenta of the a-particle ejectiles in order to reconstruct states in both190Re and192Ir. A mass calibration was performed using known energy levels in 192Ir. These measurements were used to obtain a new value of the mass excess of190Re,-35583 ± 5 keV. The previously known literature value is-35640 ± 70 keV.

Original languageEnglish
Article number085104
JournalJournal of Physics G: Nuclear and Particle Physics
Volume47
Issue number8
Early online date6 Jul 2020
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • Q3D magnetic spectrograph
  • Re atomic mass
  • Re mass excess
  • nuclear reaction Os(d
  • α) Re

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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