Reconstruction of the shapes of gold nanocrystals using coherent x-ray diffraction
Inverse problems arise frequently in physics: The magnitude of the Fourier transform of some function is measurable, but not its phase. The "phase problem" in crystallography arises because the number of discrete measurements (Bragg peak intensities) is only half the number of unknowns (el...
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| Veröffentlicht in: | Physical review letters 2001-11, Vol.87 (19), p.195505-195505, Article 195505 |
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| container_end_page | 195505 |
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| container_issue | 19 |
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| container_title | Physical review letters |
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| creator | Robinson, I K Vartanyants, I A Williams, G J Pfeifer, M A Pitney, J A |
| description | Inverse problems arise frequently in physics: The magnitude of the Fourier transform of some function is measurable, but not its phase. The "phase problem" in crystallography arises because the number of discrete measurements (Bragg peak intensities) is only half the number of unknowns (electron density points in space). Sayre first proposed that oversampling of diffraction data should allow a solution, and this has recently been demonstrated. Here we report the successful phasing of an oversampled hard x-ray diffraction pattern measured from a single nanocrystal of gold. |
| doi_str_mv | 10.1103/physrevlett.87.195505 |
| format | Article |
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| source | American Physical Society Journals |
| title | Reconstruction of the shapes of gold nanocrystals using coherent x-ray diffraction |
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