First Nuclear Moment Measurement with Radioactive Beams by the Recoil-in-Vacuum Technique: ThegFactor of the21+State inTe132

Following Coulomb excitation of the radioactive ion beam (RIB) $^{132}\mathrm{Te}$ at HRIBF we report the first use of the recoil-in-vacuum (RIV) method to determine the $g$ factor of the ${2}_{1}^{+}$ state: $g(973.9\text{ }\text{ }\mathrm{keV}\text{ }{2}^{+}\text{ }^{132}\mathrm{Te})=(+)0.35(5)$. The advantages offered by the RIV method in the context of RIBs and modern detector arrays are discussed.