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Title: X-ray two-photon absorption with high fluence XFEL pulses

Here, we report on nonlinear interaction of solid Fe with intense femtosecond hard x-ray free-electron laser (XFEL) pulses. The experiment was performed at the CXI end-station of the Linac Coherent Light Source (LCLS) by means of high- resolution x-ray emission spectroscopy. The focused x-ray beam provided extreme fluence of ~10 5 photons/Å 2. Two-photon absorption leading to K-shell hollow atom formation and to single K-shell ionization of solid Fe was investigated.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [3] ;  [4] ;  [5] ;  [5] ;  [5] ;  [6]
  1. Univ. of Fribourg (Switzerland)
  2. Paul Scherrer Inst. (PSI), Villigen (Switzerland); Jan Kochanowski Univ. (Poland)
  3. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  4. Jan Kochanowski Univ. (Poland)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Univ. of Melbourne (Australia)
Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 635; Journal Issue: 10; Journal ID: ISSN 1742-6588
Publisher:
IOP Publishing
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1348932