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Optimal mapping of x-ray laser diffraction patterns into three dimensions using routing algorithms

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Kassemeyer,  Stefan
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Jafarpour,  Aliakbar
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Lomb,  Lukas
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Steinbrener,  Jan F.
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Schlichting,  Ilme
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Kassemeyer, S., Jafarpour, A., Lomb, L., Steinbrener, J. F., Martin, A. V., & Schlichting, I. (2013). Optimal mapping of x-ray laser diffraction patterns into three dimensions using routing algorithms. Physical Review E, E88(4): 042710, pp. 1-9. doi:10.1103/PhysRevE.88.042710.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-914E-C
Abstract
Coherent diffractive imaging with x-ray free-electron lasers (XFEL) promises high-resolution structure determination of noncrystalline objects. Randomly oriented particles are exposed to XFEL pulses for acquisition of two-dimensional (2D) diffraction snapshots. The knowledge of their orientations enables 3D imaging by multiview reconstruction, combining 2D diffraction snapshots in different orientations. Here we introduce a globally optimal algorithm that can infer these orientations. We apply it to experimental XFEL data of nanoparticles and so determine their 3D electron density.