Studies on the level structure of 152Nd
Y. Toh1 - S. Yamada2 - A. Taniguchi2 - Y. Kawase2
1 Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
2 Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
Received: 19 October 1998 / Revised version: 22 December 1998 Communicated by K. Nakai
The structure of 152Nd, produced via decay of 152Pr, has been investigated using -coincidence, - angular correlation, and -- triple coincidence measurements. Praseodymium activities were obtained by the thermal neutron fission of 235U and collected by the on-line isotope separator KUR-ISOL. Nineteen -rays and four excited states were newly found. The spins of six exited states were determined and the parities of three of them were also deduced. The spin and parity of the 152Pr ground state, which were previously considered as 4-, are proposed to be 4+ by the present study.
21.10.Hw Spin, parity, and isobaric spin - 23.20.Lv Gamma transitions and level energies