Photoionizing trapped highly charged ions with synchrotron radiation

J. R. Crespo López-Urrutia, M. C. Simon, C. Beilmann, J. Rudolph, R. Steinbrügge, S. Eberle, M. Schwarz, T. M. Baumann, B. L. Schmitt, F. Brunner, R. Ginzel, R. Klawitter, K. Kubićek, S. W. Epp, P. H. Mokler, V. MäcKel, J. Ullrich, G. V. Brown, A. Graf, M. LeuteneggerP. Beiersdorfer, E. Behar, R. Follath, G. Reichardt, O. Schwarzkopf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We review our recent high resolution experiments on photoabsorption by Fe 14+ [M. C. Simon, et al., Phys. Rev. Lett. 105, 183001 (2010)], Fe 15+, and Ar 12+ [M. C. Simon, et al., J. Phys. B-At. Mol. Opt. Phys. 43, 065003 (2010)] at photon energies up to 1 keV. These ions play an essential role in photoionized astrophysical plasmas. Diagnostics of X-ray binary systems rely heavily on precise identification and knowledge of absorption lines. Novel experiments using an electron beam ion trap, FLASH EBIT, in combination with monochromatic synchrotron radiation allow us to investigate ions in charge states hitherto out of reach. Trapped ions can be prepared in any charge state at target densities sufficient to measure absorption cross sections below 0.1 Mb. This results in benchmark state-of-the-art predictions of the transitions wavelengths, widths, and absolute cross sections.

Original languageEnglish
Title of host publication17th International Conference on Atomic Processes in Plasmas, ICAPiP
Pages80-85
Number of pages6
DOIs
StatePublished - 2012
Event17th International Conference on Atomic Processes in Plasmas, ICAPiP 2011 - Belfast, United Kingdom
Duration: 19 Jul 201222 Jul 2012

Publication series

NameAIP Conference Proceedings
Volume1438

Conference

Conference17th International Conference on Atomic Processes in Plasmas, ICAPiP 2011
Country/TerritoryUnited Kingdom
CityBelfast
Period19/07/1222/07/12

Keywords

  • Photoionization
  • highly charged ions

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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