Magnetic moments of mirror nuclei with tilted-foil polarization

We report here on an ongoing experimental program initiated at the ISOLDE facility at CERN for the measurement of magnetic moments of short-lived radionuclides, with the emphasis on magnetic moments of mirror nuclei in far-from-stability regions. The nuclei are polarized by the tilted foil technique and the resulting 0-180 degrees beta asymmetry is monitored as a function of RF frequency applied in an NMR setup. In order to achieve sufficiently high energy for transmission through the foils, the experimental setup is mounted on a high voltage platform. The first experiment in this program was the measurement of the beta asymmetry and the NMR resonance for the ground state of /sup 23/Mg (I=3/2, T/sub 1/2 /=11 3 S), yielding mu =-0.533(6) nm. Improvements to the experimental setup are presently being designed, to be used in conjunction with the new developments at ISOLDE for obtaining high charge-state ions from the EBIS (REX- ISOLDE) ion source. This will help pave the way for measurements of magnetic moments of T=3/2 nuclei in the s-d shell and of T= 1/2 f- shell nuclei. The study of relaxation times and other solid-state phenomena in semiconductors and other materials of interest using this technique is also contemplated. (12 refs).