Precision measurements of the wavelengths of spectral lines of multiply charged krypton and argon ions formed in a gas target heated by laser radiation

摘要

The first precision(with an error of 0.4-1.6 mA) measurements were made of the wavelengths of x-ray spectral lines emitted as a result of n = 4-n'=2 transitions in the Ne- and Na-like Kr XXII and Kr- XXVI ions. The spectra were recorded by means of a spectrograph with a spherically bent mica crystal, characterised by a spectral resolution λ/Δλ≈50·10~3, the dispersion characteristic of this crystal was deter- mined with the aid of reference lines, which were emitted by the He-like Ar XVII ion. The wavelengths of a series of dielectronic satellites of the Resonance line of the Ar XVII ion were identified and measured. The Results obtained were compared with calculated data.