Abstract:
An investigation was made of the spectra of Mg XI, Mg XII, Al XII, and Al XIII ions generated by laser radiation focused on solid targets. The relative intensities of the allowed and forbidden lines and of the lines beginning from self-ionized levels yielded the electron density (Ne ≈ 1020 cm–3) and temperature (kTe ≈ 300 eV) of the radiating region. The method employed was suitable for the diagnostics of plasmas with Ne ≈ 1023 cm–3 provided the spectra of strongly ionized hydrogen-like and helium-like ions were observed.