Abstract
The spectrum of dielectronic satellites of resonance lines of the neon-like selenium ion was analyzed experimentally and theoretically. The satellite line spectrum resulting from stabilizing radiative transitions from doubly excited states of the sodium-like selenium ion to nonautoionizing states was obtained using a laser plasma and a record spectral resolution of λ/Δλ ≈ 5000–8000. A detailed analysis is given of the laser plasma x-ray emission spectrum in the range 7.2–8.8 Å, more than 300 lines or compact groups of spectral lines were identified, and their wavelengths were measured with an error of ±5−10 −4 Å.The good agreement between the modeled and experimental spectra indicates that the emission spectrum of Na-like ions shows promise for use in high-temperature plasma diagnostics.
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Translated from Izmeritel'naya Tekhnika, No. 5, pp. 3–15, May, 1994.
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Nilsen, J., Pikuz, S.A., Skobelev, I.Y. et al. Precision measurements and identification of laser plasma emission spectra due to transitions from doubly excited levels of the sodium-like selenium ion. Meas Tech 37, 477–492 (1994). https://doi.org/10.1007/BF00980432
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DOI: https://doi.org/10.1007/BF00980432