Figure 1

Sum-energy spectrum for (a) the electrons from the r–e–f events, (b) the first electron burst from the r–e–e–f events, and (c) the second electron burst from the r–e–e–f events. The electron distributions associated with the three isomers are labeled I, II, and III. Open symbols indicate the sum energies for the first (squares), second (triangles), and third (circles) electron bursts in each of the seven r–e–e–e–f events.Reuse & Permissions

Figure 2

Gamma-ray spectra for (a) $\gamma$ rays in prompt coincidence with electrons from the r–e–f events, (b) $\gamma$ rays in prompt coincidence with the first electron burst from the r–e–e–f events, and (c) $\gamma$ rays in prompt coincidence with the second electron burst from the r–e–e–f events. The inset in (a) is an expansion with the Rf X-ray energies marked. All $\gamma$-ray spectra were created by treating the four Clover crystals as individual detectors (with no addback).Reuse & Permissions

Figure 3

Proposed decay scheme for ${}^{256}\mathrm{Rf}$. Energies are given in keV. Half-lives are written beneath each isomer.Reuse & Permissions

Figure 4

The fitted decay curves derived from a maximum likelihood technique [9] for electron bursts I, II, and III. The thick solid lines are fits; the thin solid lines indicate the 68% Poisson probability interval about the fit.Reuse & Permissions