Аннотация: The structures presumably linked with collinear multicluster decay (CMD) of
252 Cf nucleus become visible in the mass-mass distribution of fission fragments gated by neutrons detected in coincidence. A reliability of th
e structures observed was estimated using Hough transformation. Analysis shows that CMD mode in question manifests itself as isotropic source of multiplicity ~ 4. Alternative treating is also possible that moving source of multiplicity 9 is decisive for the effect. Another exotic “collimated” neutron source is discussed as well.