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Title: Disentangling formation of multiple-core holes in aminophenol molecules exposed to bright X-FEL radiation

Competing multi-photon ionization processes, some leading to the formation of double core hole states, have been examined in 4-aminophenol. The experiments used the linac coherent light source (LCLS) x-ray free electron laser, in combination with a time-of-flight magnetic bottle electron spectrometer and the correlation analysis method of covariance mapping. Furthermore, the results imply that 4-aminophenol molecules exposed to the focused x-ray pulses of the LCLS sequentially absorb more than two x-ray photons, resulting in the formation of multiple core holes as well as in the sequential removal of photoelectrons and Auger electrons (so-called PAPA sequences).
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [8] ;  [8] ;  [8] ;  [8] ;  [8] ;  [8] ;  [10] ;  [10] ;  [10] ;  [10] ;  [10] more »;  [11] ;  [12] ;  [13] ;  [13] ;  [13] ;  [14] ;  [14] ;  [14] ;  [15] ;  [15] ;  [15] ;  [16] ;  [1] « less
  1. Univ. of Gothenburg, Gothenburg (Sweden); Uppsala Univ., Uppsala (Sweden)
  2. Uppsala Univ., Uppsala (Sweden); Stockholm Univ., Stockholm (Sweden); Jan Kochanowski Univ., Kielce (Poland)
  3. Uppsala Univ., Uppsala (Sweden)
  4. Univ. of Gothenburg, Gothenburg (Sweden); Uppsala Univ., Uppsala (Sweden); Imperial College London, London (United Kingdom)
  5. Univ. of Gothenburg, Gothenburg (Sweden); Uppsala Univ., Uppsala (Sweden); Oxford Univ., Oxford (United Kingdom)
  6. Uppsala Univ., Uppsala (Sweden); LCPMR, UPMC and CNRS, Paris (France)
  7. Imperial College London, London (United Kingdom)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States); Graz Univ. of Technology, Graz (Austria)
  10. Stockholm Univ., Stockholm (Sweden)
  11. Max-Planck-Institut fur Medizinische Forschung, Heidelberg (Germany)
  12. Max Planck-Institut fur Kernphysik, Heidelberg (Germany); Physikalisch-Technische Bundesanstalt, Braunschweig (Germany)
  13. Tohoku Univ., Sendai (Japan)
  14. Elettra-Sincrotrone Trieste, Trieste (Italy)
  15. Western Michigan Univ., Kalamazoo MI (United States)
  16. Western Michigan Univ., Kalamazoo MI (United States); Univ. of Connecticut, Storrs, CT (United States)
Publication Date:
OSTI Identifier:
1257226
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. B, Atomic, Molecular and Optical Physics
Additional Journal Information:
Journal Volume: 48; Journal Issue: 24; Journal ID: ISSN 0953-4075
Publisher:
IOP Publishing
Research Org:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY multiple ionization processes; double core hole; covariance mapping