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Compressive auto-indexing in femtosecond nanocrystallography
Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA.
2011 (English)In: Ultramicroscopy, ISSN 0304-3991, E-ISSN 1879-2723, Vol. 111, no 7, 807-811 p.Article in journal (Refereed) Published
Abstract [en]

Ultrafast nanocrystallography has the potential to revolutionize biology by enabling structural elucidation of proteins for which it is possible to grow crystals with 10 or fewer unit cells on the side. The success of nanocrystallography depends on robust orientation-determination procedures that allow us to average diffraction data from multiple nanocrystals to produce a three-dimensional (3D) diffraction data volume with a high signal-to-noise ratio. Such a 3D diffraction volume can then be phased using standard crystallographic techniques. “Indexing” algorithms used in crystallography enable orientation determination of diffraction data from a single crystal when a relatively large number of reflections are recorded. Here we show that it is possible to obtain the exact lattice geometry from a smaller number of measurements than standard approaches using a basis pursuit solver.

Place, publisher, year, edition, pages
2011. Vol. 111, no 7, 807-811 p.
Keyword [en]
Crystallography, Indexing, Compressive sensing
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:uu:diva-232890DOI: 10.1016/j.ultramic.2010.10.016OAI: oai:DiVA.org:uu-232890DiVA: diva2:750106
Available from: 2014-09-26 Created: 2014-09-26 Last updated: 2014-10-08Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/pii/S0304399110002743

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Maia, Filipe R.N.C.
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