(EC+β+) decay study of 130Ce and it's radiochemical separation

The nuclide 130Ce was produced by a (16O, 4n) reaction carried out at the SFC accelerator of IMP on an enriched 118Sn target. Reaction products were moved to a shielded location by a He-jet tape-transport system, then using a radiochemical separation procedure in which a solvent extraction and precipitation with oxalic acid method was applied, Ce was separated, purified and made into thin sample rapidly, and then a single spectrum as well as X-γ, γ-γ coincidence measurements was performed. A 22.9 min activity in chemical separated sample was identified as 130Ce. The decay scheme was proposed for the first time. The scheme included 108 lines of γ rays, among which 107 being new. Total separation time of this new chemical procedure was about 10 min, and the chemical yield was about 70%. More than 98% La produced in nuclear reaction was removed, decontamination of other impurities also satisfied the requirement of study of 130Ce (EC + β+) decay scheme