Relative Yields of $^{149-153}$Pr in Spontaneous Fission of $^{252}$Cf

The relative yields of the fission partners of $^{149-153}$Pr, resulting from the spontaneous fission of $^{252}$Cf, were studied. This study was done by means of $\gamma -\gamma -\gamma $, and $\gamma -\gamma -\gamma -\gamma $ coincidence data taken in 2000 by the multi-HPGe, Compton-suppressed, gamma detector array, Gammasphere, at Lawrence Berkeley National Lab. The coincidence data were analyzed by double- and triple-gating on transitions in $^{149-153}$Pr and obtaining the intensities of the $^{93-101}$Y transitions. For $^{150,151,152,153}$Pr the 3n channel was found to be the strongest. The $^{149}$Pr, however, was found to peak at the 4n channel. These results were used to verify the assignments of the level schemes of $^{151,152,153}$Pr [1-3]. The data are found to be in agreement with Wahl's independent yield tables [4]. \\[4pt] [1] E. Wang et al., Bull.Am.Phy.Soc.DNP Oct. 2013\\[0pt] [2] J. H. Hamilton et al., Bull.Am.Phy.Soc.DNP Oct. 2013\\[0pt] [3] E. Wang et al., BAPS, SESAPS, 11/13.\\[0pt] [4] A. C. Wahl, Atomic Data and Nuclear Data Tables, Vol. 39, No. 1, May 1988, Table XVI.