Abstract
In electron interactions with highly charged Fe ions, the X-ray spectra were theoretically analysed and compared with the experimental results at the Tokyo EBIT. In the present analysis, cross sections for dielectronic recombination, resonance excitation, resonance recombination, and direct excitation were calculated by use of the distorted wave method. Simulated spectra were obtained by convoluting the calculated cross sections with the experimental beam energy resolution and X-ray detector resolution, which are in close agreement with the experimental observations. Based on our calculations including polarization effects, we estimate the charge state balance: He-like Fe 24+ (74%), Li-like Fe 23+ (18%), and Be-like Fe 22+ (8%), and the ion density in the trap to be 6.5 ‐ 8.5 × 10 8 cm -3 . The present calculations were also compared with the previous high-resolution measurements of the KLL resonances in He-like
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
