Alpha Decay ofCf246

A sample of ${\mathrm{Cf}}^{246}$ was prepared by intensive alpha bombardment of ${\mathrm{Cm}}^{244}$. The alpha spectrum was studied by use of silicon surface barrier detectors having a resolution of 18 keV at 6.7-MeV alpha energy. The alpha energies and intensities found for the transitions were: 6.753 MeV, 77.9±0.2%; 6.714±0.0007 MeV, 21.9±0.2%; 6.621±0.001 MeV, 0.18±0.02%; and 6.465±0.003 MeV, undetermined intensity. The energies can be fitted by the expression $E=6.46I(I+1\mathrm{})+0.0074\mathrm{}{I}^2{\mathrm{}(I+1\mathrm{})\mathrm{}}^2\mathrm{keV}$ and the relative intensities by $C_0:C_2:C_4=1:0.42:0.080\mathrm{}$, where the $C\text{'}\mathrm{s}$ are the reciprocals for the hindrance factors of the various $L$ waves.