Precision Measurement ofKX-Ray Spectrum of Hg

Abstract

The $K$ x-ray spectrum of Hg has previously not been measured with the same accuracy as nearby elements because of the difficulty of obtaining a good anticathode. A wavelength determination of $\mathrm{Hg}K{\alpha }_1$, ${\alpha }_2$, ${\beta }_1$, ${\beta }_{\mathcal{S}}$ is herewith reported with an accuracy of less than 40 ppm. Using these data an earlier measurement of the weaker Hg lines is recalculated to give higher accuracy.