Structure determination through correlated fluctuations in x-ray scattering

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27 Citations (Scopus)

Abstract

It was suggested more than three decades ago that the three-dimensional structure of one particle may be determined using the simultaneous x-ray scattering from many randomly oriented copies ab initio, without modelling of a priori information. This may be possible, provided sufficiently brief and intense x-ray pulses that can outrun the effects of radiation damage and simultaneously produce significant signal within snapshot diffraction patterns. Because the ensemble of particles is static throughout the snapshot exposure, solution scattering patterns contain angular intensity fluctuations and thus differ from conventional isotropic scattering patterns. X-ray free-electron lasers may be able to provide the x-ray source properties that are required to make such experiments feasible. In this tutorial we discuss how structures might be determined through correlated x-ray scattering measurements, with an emphasis on dilute suspensions of identical bioparticles.

Original languageEnglish (US)
Article number223001
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume45
Issue number22
DOIs
StatePublished - Nov 28 2012
Externally publishedYes

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x ray scattering
x ray sources
scattering
radiation damage
free electron lasers
x rays
diffraction patterns
pulses

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

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abstract = "It was suggested more than three decades ago that the three-dimensional structure of one particle may be determined using the simultaneous x-ray scattering from many randomly oriented copies ab initio, without modelling of a priori information. This may be possible, provided sufficiently brief and intense x-ray pulses that can outrun the effects of radiation damage and simultaneously produce significant signal within snapshot diffraction patterns. Because the ensemble of particles is static throughout the snapshot exposure, solution scattering patterns contain angular intensity fluctuations and thus differ from conventional isotropic scattering patterns. X-ray free-electron lasers may be able to provide the x-ray source properties that are required to make such experiments feasible. In this tutorial we discuss how structures might be determined through correlated x-ray scattering measurements, with an emphasis on dilute suspensions of identical bioparticles.",
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