Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Abstract

Abstract:The spectrum of silver, excited in a vacuum spark, was recorded in the region 150-350 Å on a 3-m grazing incidence spectrograph. The resonance 4d k -(4d k−1 5p + 4d k−1 4f + 4p 5 4d k+1 ) was studied in the Ag 6+ -Ag 8+ spectra (Ag VII-Ag IX) with k = 5-3, respectively. Several hundred lines were identified with the aid of the Cowan code and orthogonal operator technique calculations. The energy levels were found and the transition probabilities were calculated.

EUV spectroscopy of Sn5+–Sn10+ ions in an electron beam ion trap and laser-produced plasmas

“…Configurations used in those [11] and the current Cowan calculations for the charge states Sn 8+ -Sn 10+ are of type 4d m−1 (5p + 6p) + 4d m−1 (4f + 5f + 6f ) + 4p 5 (4d m+1 + 4d m 5s). Scaling factors were estimated by extrapolation from Sn 6+ , Sn 7+ , and isoelectronic Ag ion spectra [41]. The results, shown in figure 2, are in agreement with our measurements.…”