Development of a Polarized $^{6}$Li$^{3+}$ Ion Source at RCNP

Nuclear spin-isospin excitations show rich features in various nuclei. One of key points to study such excitations is to use a selective probe for the reactions relevant to the physics of interest. Our plan is to develop a new polarized $^{6}$Li$^{3+}$ ion source for producing $^{6}$Li$^{3+}$ beams at 100 MeV/U at the Research Center for Nuclear Physics (RCNP). Polarized $^{6}$Li atoms are produced by the optical pumping method. The atoms are injected into an 18GHz ECR ionizer for producing 3+ ions, directory or after being stripped of an electron by using a surface ionizer. Several depolarization processes should be cared, such as the ones due to inhomogeneous magnetic field, ECR effect in the RF field, excitation and de-excitation processes of ions, etc. We will report on the design of the ion source and recent results of feasibility tests.