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Journal of Radioanalytical and Nuclear Chemistry
Authors: T. Sekine, S. Ichikawa, A. Osa, M. Koizumi, H. Iimura, K. Tsukada, I. Nishinaka, Y. Hatsukawa, Y. Nagame, M. Asai, Y. Kojima, T. Hirose, M. Shibata, H. Yamamoto, and K. Kawade


Studies on the decay of unstable nuclei using the two on-line isotope separators of JAERI are reviewed for the past five years. With the previously established ion-source technique using mono-oxide ion formation in a thermal ion source, the new nuclides125Pr and127Pr have been identified in heavy-ion fusion residues. Further, with a newly developed gas-jet coupled thermal ion source, the new nuclides166Tb,165Gd,161Sm and236Am have been identified by bombarding238U and235U targets with a proton or6Li beam. Other studies, including off-line experiments, by decay spectroscopy, laser spectroscopy and Mössbauer spectroscopy are described.

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