Developments in the Measurement of Spin-polarized Fragments Using Β-nmr at the Nscl

The measurement of ground state magnetic dipole moments of nuclei far from the line of β stability can provide much needed information on the progression of single-particle states to test current nuclear structure models. Since the observation by Asahi et al. [1] that spin-polarized nuclei are produced at angles away from the central beam axis in intermediate-energy heavy-ion reactions, significant progress has been made in the measurement of ground state magnetic dipole moments of light, exotic nuclei. We have successfully implemented the technique of nuclear magnetic resonance on β-emitting nuclei (β-NMR) to measure the g factors of spin-polarized secondary fragments at the NSCL [2]. Recent developments to extent this technique to very exotic nuclear systems include the implementation of a multiple adiabatic fast passage technique for β-NMR and the use of thick production targets to improve the yield of spin-polarized nuclei.