Reabsorption of Soft X-Ray Emission at High X-Ray Free-Electron Laser Fluences

Simon Schreck, Martin Beye, Jonas A. Sellberg, Trevor McQueen, Hartawan Laksmono, Brian Kennedy, Sebastian Eckert, Daniel Schlesinger, Dennis Nordlund, Hirohito Ogasawara, Raymond G. Sierra, Vegard H. Segtnan, Katharina Kubicek, William F. Schlotter, Georgi L. Dakovski, Stefan P. Moeller, Uwe Bergmann, Simone Techert, Lars G. M. Pettersson, Philippe Wernet, Michael J. Bogan, Yoshihisa Harada, Anders Nilsson, and Alexander Föhlisch
Phys. Rev. Lett. 113, 153002 – Published 6 October 2014
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Abstract

We report on oxygen K-edge soft x-ray emission spectroscopy from a liquid water jet at the Linac Coherent Light Source. We observe significant changes in the spectral content when tuning over a wide range of incident x-ray fluences. In addition the total emission yield decreases at high fluences. These modifications result from reabsorption of x-ray emission by valence-excited molecules generated by the Auger cascade. Our observations have major implications for future x-ray emission studies at intense x-ray sources. We highlight the importance of the x-ray pulse length with respect to the core-hole lifetime.

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  • Received 28 April 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.153002

© 2014 American Physical Society

Authors & Affiliations

Simon Schreck1,2,*, Martin Beye1,†, Jonas A. Sellberg3,4, Trevor McQueen4,5, Hartawan Laksmono6, Brian Kennedy1, Sebastian Eckert1, Daniel Schlesinger3, Dennis Nordlund7, Hirohito Ogasawara7, Raymond G. Sierra6, Vegard H. Segtnan4,8, Katharina Kubicek9,10, William F. Schlotter11, Georgi L. Dakovski11, Stefan P. Moeller11, Uwe Bergmann11, Simone Techert9,10,12, Lars G. M. Pettersson3, Philippe Wernet1, Michael J. Bogan6, Yoshihisa Harada13,14, Anders Nilsson3,4,7, and Alexander Föhlisch1,2

  • 1Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
  • 2Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
  • 3Department of Physics, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
  • 4SUNCAT, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 5Department of Chemistry, Stanford University, Stanford, California 94305, USA
  • 6PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 7SSRL, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 8Nofima AS, Osloveien 1, N-1430 Ås, Norway
  • 9FS-Structural Dynamics in (Bio)chemistry, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
  • 10Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, 37077 Göttingen, Germany
  • 11LCLS, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
  • 12Institute for X-ray Physics, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
  • 13Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
  • 14Synchrotron Radiation Research Organization, The University of Tokyo, Sayo-cho, Sayo, Hyogo 679-5198, Japan

  • *simon.schreck@helmholtz-berlin.de
  • martin.beye@helmholtz-berlin.de

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Issue

Vol. 113, Iss. 15 — 10 October 2014

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