Massen‐ und Ladungsverteilung bei der Spaltung von 249 Cf mit thermischen Neutronen. Vorläufige Mitteilung

The distribution of mass and charge in the thermal‐neutron‐induced fission of 249 Cf has been investigated by radiochemical determination of the fission yields of 25 mass chains and one shielded nuclide (independent yield). The mass distribution is asymmetric, as in all known cases of low‐energy fission. The fission yield data indicate a value of 6 ± 1.5 for v , the average number of neutrons emitted per fission. The division of nuclear charge, as indicated by the independent yield of 136 Cs, is consistent with the equal charge displacement hypothesis characteristic of low‐energy fission.