期刊
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 369, 期 1647, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rstb.2013.0331
关键词
protein crystallography; coherent diffractive imaging; free-electron laser
类别
资金
- BMBF Verbundprojekt [05K2012]
- DFG through the Centre for Ultrafast Imaging
- NSF STC [1231306]
With the use of highly coherent femtosecond X-ray pulses from a free-electron laser, it is possible to record protein nanocrystal diffraction patterns with far more information than is present in conventional crystallographic diffraction data. It has been suggested that diffraction phases may be retrieved from such data via iterative algorithms, without the use of a priori information and without restrictions on resolution. Here, we investigate the extension of this approach to nanocrystals with edge terminations that produce partial unit cells, and hence cannot be described by a common repeating unit cell. In this situation, the phase problem described in previous work must be reformulated. We demonstrate an approximate solution to this phase problem for crystals with random edge terminations.
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