Kα and Kβ spectra from m-shell-ionized ions produced in a vacuum spark

Spatially resolved Kα lines of Fe XII–XVII and Kβ lines including their satellite lines of Ti VI–XIII from a vacuum spark were first measured using a Johann type crystal spectrometer with high resolution. The Fe Kα lines are shifted to the long-wavelength side of the Fe II Kα lines for some spatial locations, confirming calculated wavelengths. The transition energies of the Ti VI–XIII Kβ lines are determined and some weak satellite lines are first found.