Measurement of the magnetic dipole moment of β-emitting 31S by use of a polarized proton beam and nuclear magnetic resonance detection

Polarized β-emitting 31S nuclei (I/sup π/ = 1/2+, T1/2 = 2.6 s) were produced in the reaction 31P(p, n)31S, E/sub p/ = 7.9 MeV, in a thick target of red phosphorous which served also as host for the implanted 31S nuclei. The net polarization transferred to the 31S nuclei, observed by measuring the β-decay asymmetry, was antiparallel to the proton polarization for direct ground-state production and parallel for production through the first excited state. The magnetic dipole moment of 31S, measured by nuclear-magnetic-resonance destruction of the polarization, is absolute value μ = [0.48793(8)]μ/sub N/, including the diamagnetic correction