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- Title
Masses of neutron-rich Ni and Cu isotopes and the shell closure at Z = 28 , N = 40.
- Authors
Rahaman, S.; Hakala, J.; Elomaa, V.-V.; Eronen, T.; Hager, U.; Jokinen, A.; Kankainen, A.; Moore, I. D.; Penttilä, H.; Rinta-Antila, S.; Rissanen, J.; Saastamoinen, A.; Weber, C.; Äystö, J.
- Abstract
The Penning trap mass spectrometer JYFLTRAP, coupled to the Ion Guide Isotope Separator On-Line (IGISOL) facility at Jyväskylä, was employed to measure the atomic masses of neutron-rich 70-73Ni and 73, 75Cu isotopes with a typical accuracy less than 5keV. The mass of 73Ni was measured for the first time. Comparisons with the previous data are discussed. Two-neutron separation energies show a weak subshell closure at 6828Ni40 . A well established proton shell gap is observed at Z = 28 .
- Subjects
SPECTROMETERS; ISOTOPES; ATOMIC mass; NEUTRONS; PROTONS
- Publication
European Physical Journal A -- Hadrons & Nuclei, 2007, Vol 34, Issue 1, p5
- ISSN
1434-6001
- Publication type
Article
- DOI
10.1140/epja/i2007-10489-y