Experimental study of short-lived nuclei far from stability by Tohoku ISOL

An EMIS facility has begun operation at one of the beam lines of a multipurpose cyclotron of K = 50 MeV. The separator is of a Scandinavian type of 550 deflection and 1500 mm dispersion. During developments of the target-ion sources and tape transport system, the on-line test experiments have been performed, and several short-lived nucleis of Zn, Cu, Se and K were identified. The outline of ISOL experimental system and the results of decay of Tsub(z) = - 1/2 nuclide 59Zn are reported, and the fsub(t)- value, the Gamow-Teller matrix element and the mass of 59Zn are discussed. The future plan of the development of targetion source system and the ISOL experiment are also described. (author)