Popis: |
Decay studies of on-line mass-separated low-spin /sup 83/Zr and /sup 83/Y sources were carried out. ..gamma.., x-ray, conversion-electron singles and time-multiscale, and ..gamma..-..gamma..-t measurements were used to deduce the /sup 83/Zr decay scheme with 18 levels up to 1250 keV. The investigations establish the decay properties of /sup 83/Y/sup m/((3/2)/sup -/) and do not confirm the previously proposed high-spin /sup 83/Zr/sup m/(T/sub 1/2/ = 6 s). The low lying structure of /sup 83/Y is compared with published theoretical calculations in terms of collective models. |