Preliminary investigations of a polarized target for the study of neutron unbound systems

Measurements of spin observables are critical for the understanding of the role of spin-orbit, tensor, and nucleon-nucleon interactions. While they are an intrinsic part of scientific programs at worldwide facilities using electromagnetic beams, they are not routine although essential to understanding the structure and reactions of exotic nuclei. There are very limited facilities that are currently able to perform such experiments. The Facility for Rare Isotope Beams (FRIB) will start its operation in 2022. With its high luminosity, the possibility of a polarized target would enable access to a rich spin-dependent program up the neutron and proton drip lines. A preliminary study on the feasibility for such target will be discussed.