Rydberg transitions in the spectra of near-neon-like Cu and Zn ions in different laser-produced plasmas: observations and modeling

Analysis of high-ndielectronic Rydberg satellites in the spectra ofNa-likeZnXX andFournier1, Faenov2, Pikuz3 et al. 2004Phys. Rev. ESelf Cite112180View full textAdd to dashboardCite

“…Detailed collisional-radiative (CR) calculations for the intensity of all transitions in each autoionizing manifold have been carried out. Our previous work [15] has identified Zn XXI lines up to n = 12; in the present work we look at the Rydberg satellites that appear on both the red and blue sides of Ne-like features with n ഛ 7. The behavior of the satellites relative to the Ne-like resonance lines as a function of temperature, accounting for opacity effects on all spectral lines, is shown.…”

“…The typical spectra for the very different lasers used in the present experiments (described below) are usually quite different in character [15,16]. However, for this article where we specifically want to understand the role of Na-and Mg-like satellites in x-ray spectra, we modified the laser parameters.…”

“…The experimental setup and three facilities used in the present work are the same as recently described [15][16][17] elsewhere. Three laser-plasma facilities have been used to produce the spectra analyzed in this article.…”

“…Because the highresolution spectrographs can survey 0.3-0.7 Å in a single shot, some overlapping spectral regions were measured. Each region contained some of the reference lines with known wavelengths (spectral lines of He-like Mg XI and Al XII and previously measured lines of Ne-like Zn XXI [15]). Spectra were recorded on KODAK RAR 2492 film.…”

“…5 in [15], in which lines from highly charged N-, Oand F-like Zn ions (Zn 23+ to Zn 21+ ) are indicated in the data from a ps-length pulse LPP; these lines have been classified in [19]. The ps-length pulse LPP (bottom spectrum) here has been made by strongly defocusing the laser until the intensity on target was Ϸ10 14 W/cm 2 , far lower than what we would usually achieve [15,19]. The Rydberg satellites near the n = 5 and n = 6 lines in all three spectra have been indicated, showing the ubiquitous nature of the Rydberg satellites.…”