The Decay Scheme ofZr95

Abstract

The decay scheme of ${\mathrm{Zr}}^{95}$ has been studied using the techniques of beta-ray spectroscopy and beta-gamma angular correlation. The decay of ${\mathrm{Zr}}^{95}$ is found to proceed by three beta gamma cascades. Two of the beta transitions are allowed and proceed to ${\mathrm{Nb}}^{95}$ levels at 722.0 kev and 754.4-kev. The third beta transition is to a 235-kev level in ${\mathrm{Nb}}^{95}$. From $K$-conversion coefficient determinations and shell theory the 722-kev and 754.4-kev levels are both assigned even parity and a spin of $\frac{5}{2}$ or $\frac{7}{2}$.