- Phase retrieval and saddle-point optimizationStefano Marchesini
Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, California 94550 9234, USA
J Opt Soc Am A Opt Image Sci Vis 24:3289-96. 2007..Here the input-output iteration is improved by a lower-dimensional subspace saddle-point optimization...
- Invited article: a [corrected] unified evaluation of iterative projection algorithms for phase retrievalS Marchesini
Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 9234, USA
Rev Sci Instrum 78:011301. 2007..The challenge of this imaging technique is transferred from the lenses to the algorithms. We evaluate these new computational "instruments" developed for the phase-retrieval problem, and discuss acceleration strategies...
- Powder diffraction from a continuous microjet of submicrometer protein crystalsD A Shapiro
Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
J Synchrotron Radiat 15:593-9. 2008..The results also serve to test our aerojet injector system, with future application to femtosecond diffraction in free-electron X-ray laser schemes, and for serial crystallography using a single-file beam of aligned hydrated molecules...
- Three-dimensional coherent x-ray diffraction imaging of a ceramic nanofoam: determination of structural deformation mechanismsA Barty
Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
Phys Rev Lett 101:055501. 2008....