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          Institute: MPI für medizinische Forschung     Collection: Jahrbuch 2012     Display Documents



ID: 638082.0, MPI für medizinische Forschung / Jahrbuch 2012
Ultra−efficient ionization of heavy atoms by intense X−ray free−electron laser pulses
Translation of Title:Ultra−efficient ionization of heavy atoms by intense X−ray free−electron laser pulses
Authors:Rudek, Benedikt; Son, Sang−Kil; Foucar, Lutz; Epp, Sascha W.; Erk, Benjamin; Hartmann, Robert; Adolph, Marcus; Andritschke, Robert; Aquila, Andrew; Berrah, Nora; Bostedt, Christoph; Bozek, John D.; Coppola, Nicola; Filsinger, Frank; Gorke, Hubert; Gorkhover, Tais; Graafsma, Heinz; Gumprecht, Lars; Hartmann, Andreas; Hauser, Günter; Herrmann, Sven; Hirsemann, Helmut; Holl, Peter; Hömke, André; Journel, Loic; Kaiser, Christian; Kimmel, Nils; Krasniqi, Faton; Kühnel, Kai−Uwe; Matysek, Michael; Messerschmidt, Marc; Miesner, Danilo; Möller, Thomas; Moshammer, Robert; Nagaya, Kiyonobu; Nilsson, Björn; Potdevin, Guillaume; Pietschner, Daniel; Reich, Christian; Rupp, Daniela; Schaller, Gerhard; Schlichting, Ilme; Schmidt, Carlo; Schopper, Florian; Schorb, Sebastian; Schröter, Claus−Dieter; Schulz, Joachim; Simon, Marc; Soltau, Heike; Strüder, Lothar; Ueda, Kiyoshi; Weidenspointner, Georg; Santra, Robin; Ullrich, Joachim; Rudenko, Artem; Rolles, Daniel
Language:English
Date of Publication (YYYY-MM-DD):2012-12-01
Title of Journal:Nature Photonics
Journal Abbrev.:Nature Photonics
Volume:6
Issue / Number:12
Start Page:858
End Page:865
Review Status:Peer-review
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:X−ray free−electron lasers provide unique opportunities for exploring ultrafast dynamics and for imaging the structures of complex systems. Understanding the response of individual atoms to intense X−rays is essential for most free−electron laser applications. First experiments have shown that, for light atoms, the dominant interaction mechanism is ionization by sequential electron ejection, where the highest charge state produced is defined by the last ionic state that can be ionized with one photon. Here, we report an unprecedentedly high degree of ionization of xenon atoms by 1.5 keV free−electron laser pulses to charge states with ionization energies far exceeding the photon energy. Comparing ion charge−state distributions and fluorescence spectra with state−of−the−art calculations, we find that these surprisingly high charge states are created via excitation of transient resonances in highly charged ions, and predict resonance enhanced absorption to be a general phenomenon in the interaction of intense X−rays with systems containing high−Z constituents
External Publication Status:published
Document Type:Article
Communicated by:Wulf Kaiser
Affiliations:MPI für medizinische Forschung/Abteilung Biophysik
MPI für medizinische Forschung/Abteilung Biomolekulare Mechanismen
MPI für medizinische Forschung/Abteilung Biomolekulare Mechanismen/Heme and Flavin Enzymes
MPI für medizinische Forschung/Abteilung Biomolekulare Mechanismen/Coherent diffractive imaging
Identifiers:LOCALID:7877
URI:http%3A%2F%2Fwww.nature.com%2Fnphoton%2Fjournal%2F...
URI:http%3A%2F%2Fwww.nature.com%2Fnphoton%2Fjournal%2F...
URI:http%3A%2F%2Fwww.nature.com%2Fnphoton%2Fjournal%2F...
DOI:10.1038%2Fnphoton.2012.261
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