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Resonant and near-threshold photoionization cross sections of Fe14+ |
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| Authors: | Simon M C López-Urrutia J R Crespo Beilmann C Schwarz M Harman Z Epp S W Schmitt B L Baumann T M Behar E Bernitt S Follath R Ginzel R Keitel C H Klawitter R Kubi?ek K M?ckel V Mokler P H Reichardt G Schwarzkopf O Ullrich J |
| Affiliation: | Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany. m.simon@mpi-hd.mpg.de |
| Abstract: | Photoionization (PI) of Fe14+ in the range from 450 to 1100 eV was measured at the BESSY II storage ring using an electron beam ion trap achieving high target-ion area densities of 10(10) cm(-2). Photoabsorption by this ion is observed in astrophysical spectra and plasmas, but until now cross sections and resonance energies could only be provided by calculations. We reach a resolving power E/ΔE of at least 6500, outstanding in the present energy range, which enables benchmarking and improving the most advanced theories for PI of ions in high charge states. |
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