Variations of Charge Radii of Nd FromKX-Ray Isotope Shifts

The variations of nuclear charge radii in isotopes of Nd were determined from $K$ x-ray isotope shifts. The results, $\delta 〈{\mathcal{r}}^2〉$, in ${\mathrm{F}}^2$ are ${\mathrm{Nd}}^{142-144}$, 0.32±0.02; ${\mathrm{Nd}}^{144-146}$, 0.26±0.03; ${\mathrm{Nd}}^{146-148}$, 0.03±0.04; and ${\mathrm{Nd}}^{148-150}$, 0.44±0.02. The odd-even staggering parameters for ${\mathrm{Nd}}^{143}$ and ${\mathrm{Nd}}^{145}$ were determined to be $\gamma =0.60\mathrm{}\pm 0.07$ and $\gamma =0.25\mathrm{}\pm 0.20$, respectively.