Observation of asymmetric fission of 213At in the reaction 209Bi (a, f)
Gruzintsev E. N., Itkis M. G. , Okolovich V. N. , Rusanov A. Ya. , Smirenkin G. N. , Tolstikov V. N.
The fragment mass distribution in the fission of the nucleus 2I3At by 36-MeV a particles is a bell-shaped curve Ys [M) with a clearly expressed asymmetric admixture Ya (M), for which the ratio of the yields at the peaks is FsmaVF™x 2.5 Χ 102. This new type of fission of preactinide nuclei exhibits several of the properties typical of the asymmetric fission of heavy nuclei.