The polarization of Al-34 fragments, produced by single neutron pickup from a Be-9 target by a S-36 projectile at 77.5 MeV/nucleon, have been observed at GANIL via the detection of resonantly destroyed beta-asymmetry. The reaction-induced polarization is deduced using a tentative spin/parity assignment for the Al-34 ground state. A positive polarization was measured near the peak of the Al-34 yield curve. A kinematical model based on the spectator-participant model for projectile fragmentation reactions has been extended in order to take into account the features of pickup reactions, i.e., the picked-up nucleon having an average momentum equal to the Fermi momentum and aligned along the incident beam direction. The trend-line in the observed spin-orientation is very well reproduced by this model.

Electromagnetic moments measurement of isomeric states produced and spin-oriented in projectile fragmentation reactions at intermediate energies have been performed using the Time Dependent Perturbed Angular Distribution (TDPAD) method. This allows the study of neutron-rich nuclei unaccessible by other kind of reaction. An important experimental achievement is presented.

In an experiment at the SISSI/LISE3 facility of GANIL, we have studied the decay of the two proton-rich nuclei Fe-45 and Ni-48. We identified 30 implantations of Fe-45 and observed for the second time four implantation events of Ni-48. In 17 cases, Fe-45 decays by two-proton emission with a decay energy of 1.154(16) MeV and a half-life of T-1/2=1.6(-0.3)(+0.5) ms. The observation of Ni-48 and of its decay allows us to deduce a half-life of T-1/2=2.1(-0.7)(+2.1) ms. One out of four decay events is completely compatible with two-proton radioactivity and may therefore indicate that Ni-48 has a two-proton radioactivity branch. We discuss all information now available on two-proton radioactivity for Fe-45 and Ni-48 and compare it to theoretical models.

The \ensuremath{\beta} decay of $^{31}\mathrm{Mg}$ has been investigated at GANIL. The ions were implanted in a silicon detector array surrounded by germanium \ensuremath{\gamma} detectors. \ensuremath{\beta} particles and subsequent \ensuremath{\gamma} rays have been observed. The $^{31}\mathrm{Mg}$ half-life has been measured (${T}_{1/2}=237\ifmmode\pm\else\textpm\fi{}25$ ms) in good agreement with previously reported values. The decay scheme of $^{31}\mathrm{Mg}$ has been enriched with two new low-spin levels and seven new \ensuremath{\gamma} transitions in $^{31}\mathrm{Al}$. Most importantly, very weak feeding to the $^{31}\mathrm{Al}$ ground and lowest excited states has been established. These results are compared to new shell-model calculations in the $\mathit{sd}\text{\ensuremath{-}}\mathit{fp}$ valence space, using an interaction that was modified in order to reproduce the recently established low-energy level scheme of $^{31}\mathrm{Mg}$. A good agreement for all observables is found, supporting the idea that $^{31}\mathrm{Al}$ is outside and $^{31}\mathrm{Mg}$ is inside the so-called ``island of inversion.''