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Title: Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

The precise details of the interaction of intense X-ray pulses with matter are a topic of intense interest to researchers attempting to interpret the results of femtosecond X-ray free electron laser (XFEL) experiments. An increasing number of experimental observations have shown that although nuclear motion can be negligible, given a short enough incident pulse duration, electronic motion cannot be ignored. The current and widely accepted models assume that although electrons undergo dynamics driven by interaction with the pulse, their motion could largely be considered 'random'. This would then allow the supposedly incoherent contribution from the electronic motion to be treated as a continuous background signal and thus ignored. The original aim of our experiment was to precisely measure the change in intensity of individual Bragg peaks, due to X-ray induced electronic damage in a model system, crystalline C 60. Contrary to this expectation, we observed that at the highest X-ray intensities, the electron dynamics in C 60 were in fact highly correlated, and over sufficiently long distances that the positions of the Bragg reflections are significantly altered. Our paper describes in detail the methods and protocols used for these experiments, which were conducted both at the Linac Coherent Light Sourcemore » (LCLS) and the Australian Synchrotron (AS) as well as the crystallographic approaches used to analyse the data.« less
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [11] ;  [2] ;  [12] ;  [2] ;  [1] more »;  [2] « less
  1. Univ. of Melbourne (Australia). ARC Centre of Excellence in Advanced Molecular Imaging and School of Physics
  2. La Trobe Univ., Melbourne, VIC (Australia). Australian Research Council (ARC) Centre of Excellence in Advanced Molecular Imaging, Dept. of Chemistry and Physics and La Trobe Inst. for Molecular Sciences
  3. Imperial College, London (United Kingdom). Dept. of Physics
  4. Florey Inst. of Neuroscience and Mental Health, Parkville, VIC (Australia)
  5. Queensland Univ. of Technology, Brisbane, QLD (Australia). Science and Engineering Faculty
  6. Swinburne Univ. of Technology, Melbourne, VIC (Australia)
  7. Univ. of Oxford (United Kingdom). Dept. of Engineering Science
  8. Brookhaven National Lab. (BNL), Upton, NY (United States)
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
  10. BioXFEL Science and Technology Center, Buffalo, NY (United States)
  11. Uppsala Univ. (Sweden). Lab. of Molecular Biophysics and Dept. of Cell and Molecular Biology
  12. Australian Synchrotron, Clayton, VIC (Australia)
Publication Date:
Report Number(s):
BNL-203473-2018-JAAM
Journal ID: ISSN 1940-087X; jove
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of Visualized Experiments
Additional Journal Information:
Journal Issue: 126; Journal ID: ISSN 1940-087X
Publisher:
MyJoVE Corp.
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Australian Research Council (ARC); Australian Synchrotron
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 77 NANOSCIENCE AND NANOTECHNOLOGY; Nanocrystallography; Femtosecond X-ray Diffraction; Correlated Electron Dynamics; X-ray Free Electron Lasers; Linac Coherent Light Source; Buckminsterfullerene
OSTI Identifier:
1433953