MASS DISTRIBUTION STRUCTURES AS A FUNCTION OF EXCITATION ENERGY OF THE 252Cf SPONTANEOUS FISSION FRAGMENTS

MASS DISTRIBUTION STRUCTURES AS A FUNCTION OF EXCITATION ENERGY OF THE ²⁵²Cf SPONTANEOUS FISSION FRAGMENTS

I.D. Alkhazov, A.V. Kuznetsov, S.S. Kovalenko, B.F. Petrov, V.I. Shpakov

Khlopin Radium Institute, Roentgena str. 1, Leningrad 197022, USSR

Structures with a period of 5 amu were found in the fragment mass distributions in the ²⁵²Cf spontaneous fission. The structures were observed for both the maximal and minimal fragment excitation energies as well as for the most asymmetric excitation energy partition between the fragments.

KEYWORDS: ²⁵²Cf, spontaneous fission, neutron multiplicities, mass distributions, fragment excitation energy