- Conference date: 10-15 Aug 1998
- Location: Gatlinburg, Tennesse (USA)
The structure of nuclei far from stability can be investigated by means of in-beam gamma spectroscopy using both stable and radioactive beams. A γ-array consisting of BaF2 and Ge detectors have been used at GANIL in order to perform two of such experiments: i) Secondary beams of neutron-rich Ge, Zn and Ni isotopes around N=40 were produced from the fragmentation of a primary beam, and analyzed by means of the LISE3 spectrometer. For the transitions between the ground state and the first state, B(E2) values have been extracted from Coulomb excitation cross-section measurement..Some of the obtained results related to the effectiveness of the N=40 spherical sub-shell closure as well as future improvements of the quality of the data are discussed. ii) In-beam γ-spectroscopy of neutron-rich nuclei around produced by fragmentation of have been recently performed. Gamma decay of relatively higher excited states have been measured in a large number of exotic light nuclei. Preliminary results obtained in a number of even-even nuclei around N=20, such as and are presented.
- Gamma ray spectroscopy
- In beam spectroscopy
- Neutron spectroscopy
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