The Intensity of X-Ray Satellites

Abstract

By means of the two-crystal ionization spectrometer measurements have been made of the wavelengths and intensities relative to $K{\alpha }_1$ of the satellites $K{\alpha }_{3,4}$ of Cu (29). $K{\alpha }_{3,4}$ has characteristics of a doublet and is separated, photographically, for elements below Sc(21) but is unresolved for elements of higher atomic number. The greater resolving power of the two-crystal spectrometer shows that this "doublet" contains, probably, more than the two components $K{\alpha }_3$ and $K{\alpha }_4$, the wavelengths of which latter were found, respectively, to be 1531.15 and 1530.15 X.U. The intensity of either of these components, at 40 K. V., is of the order of 0.25 percent of the intensity of $K{\alpha }_1$. A similar study of the $K{\alpha }_{3,4}$ doublet of Ni (28) suggests that this doublet may contain four components.