Nuclear moment determination of β-emitting nuclei by use of nuclear reactions initiated with fast polarized beams

A new method for measuring hyperfine interactions has been developed in which polarized nuclei are produced from nuclear reactions initiated with fast polarized beams. To illustrate the application to nuclear-moment studies, a hexagonal single crystal of LiIO3 was used as a target to investigate the electric quadrupole interaction of 8Li (I=2, Tsub(1/2)=0.84 sec) by means of NMR detection. Using the same method, NMR measurements were carried out on 39Ca (Isup(π)=3/2+, Tsub(1/3)=0.87 sec) to determine its magnetic moment and ultimately its quadrupole moment. (B.R.H.)