ANALYSIS OF THE INTENSITIES OF LINE SPECTRA OF MULTIPLY CHARGED IONS IN A LASER PLASMA AND THEIR APPLICATIONS IN CALIBRATION OF SPECTROSCOPIC INSTRUMENTS IN FAR VACUUM ULTRAVIOLET.

An analysis was made of the distribution of the relative intensities of spectral lines with a common upper level in transitions of the 2s2p**k** plus **1 minus 2p**k** plus **2 type in N-, C-, B-, and Be-like ions of Ca, Ti, and Fe excited in a laser plasma and recorded photographically by a glancing-incidence spectrograph. Use was made of theoretically calculated transition probabilities. The relative spectral sensitivity of a DFS-6 spectrograph employed in combination with UF-4 photographic emulsions was determined as a function of the wavelength in the range 100 - 250 A. It was found that the dependence is nonmonotonic. The results were used in some diagnostic applications to laser plasma spectra.