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On the nature of the 17 μs isomer of the 133Sb valence nucleus (2000)

Genevey, J. ; Pinston, J.A. ; Faust, H. ; [weitere]

Springer

The European physical journal 7 (2000), S. 463-465

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ISSN: 1434-601X

Schlagwort(e): PACS:21.10.Tg Lifetimes – 23.20.Lv Gamma transition level energies – 25.85.Ec Neutron-induced fission – 21.60.Cs Shell model – 27.60.+j 90 ≤ A ≤ 149

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: The decay of the 17 μs isomer of 133Sb was re-investigated experimentally. It was produced by thermal neutron induced fission of 241Pu. Its detection is based on time correlation between fission fragments selected by the LOHENGRIN spectrometer at ILL (Grenoble), and the γ-rays, and conversion electrons from the isomer. The interpretation of the level scheme is based on shell model calculations, where empirical two-body matrix elements were employed. The good agreement between theory and experiment suggests that the isomer is the 21/2+ member of the 2p-1h πg 7/2ν(f 7/2 h 11/2 −1) configuration.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/PL00013643

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Digitale Medien

Nuclear moments of neutron deficient iridium isotopes from laser spectroscopy (2000)

Verney, D. ; Le Blanc, F. ; Cabaret, L. ; [weitere]

Springer

Hyperfine interactions 127 (2000), S. 79-82

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ISSN: 1572-9540

Schlagwort(e): laser spectroscopy ; resonance ionization spectroscopy ; hyperfine structure ; isotope shift ; nuclear moments ; nuclear charge radius variation

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Laser spectroscopy measurements have been performed on neutron deficient iridium isotopes. The hyperfine structure and isotope shift of the optical Ir I transition 5d76s2 4F9/2 → 5d76s6p 6F11/2 at 351.5 nm have been studied for the 182–189Ir, $$^{186} {\text{Ir}}^\user1{m} $$ and 191,193Ir isotopes. The nuclear magnetic and quadrupole moments were obtained from the HFS measurements and the changes of the mean square charge radii from the IS measurements. A large mean square charge radius change between 187Ir and 186Ir and between $$^{186} {\text{Ir}}^\user1{m} $$ and $$^{186} {\text{Ir}}^\user1{g} $$ has been observed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1012602525009

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