Results 41 to 50 of about 47,681 (288)

Impact of ultrafast electronic damage in single particle x-ray imaging experiments

, 2012
In single particle coherent x-ray diffraction imaging experiments, performed at x-ray free-electron lasers (XFELs), samples are exposed to intense x-ray pulses to obtain single-shot diffraction patterns.
E. Weckert, F. Herman, I. A. Vartanyants, J. Als-Nielsen, L. Mandel, M. M. Woolfson, N. M. Kabachnik, U. Lorenz   +7 more
core   +1 more source

When holography meets coherent diffraction imaging [PDF]

, 2012
Modern imaging techniques at the molecular scale rely on utilizing novel coherent light sources like X-ray free electron lasers for the ultimate goal of visualizing such objects as individual biomolecules rather than crystals. Here, unlike in the case of
Barakat, Bates, Bates, Bates, Bates, Bates, Bruck, Dierolf, Eisebitt, Fienup, Fienup, Fienup, Fienup, Gabor, Gabor, Gerchberg, Hans-Werner Fink, Hofstetter, Huang, Huang, Huiser, Huiser, Jean-Nicolas Longchamp, Latychevskaia, Latychevskaia, Latychevskaia, Latychevskaia, Longchamp, Maiden, Marchesini, Marchesini, Marchesini, McNulty, Miao, Miao, Millane, Nair, Nelson, Nishino, Raines, Sayre, Sayre, Seibert, Shapiro, Song, Spence, Steinwand, Steinwand, Tatiana Latychevskaia, Thibault, Thibault, Thibault, Vine, Weierstall, Whitehead, Wilke, Williams, Williams, Williams, Williams, Zuo   +60 more
core   +1 more source

X-ray Diffraction Tomographic Imaging and Reconstruction [PDF]

, 2011
Material discrimination based on conventional or dual energy X-ray computed tomography (CT) imaging can be ambiguous. X-ray diffraction imaging (XDI) can be used to construct diffraction profiles of objects, providing new molecular signature information ...
Castañón, David, Chen, Ke
core   +1 more source

Nano-modulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation [PDF]

, 2017
We present a new method for generation of relativistic electron beams with current modulation on the nanometer scale and below. The current modulation is produced by diffracting relativistic electrons in single crystal Si, accelerating the diffracted ...
Graves, William S., Moncton, David E., Nanni, Emilio A.   +2 more
core   +3 more sources

Phase tomography from x-ray coherent diffractive imaging projections

Optics Express, 2011
Coherent diffractive imaging provides accurate phase projections that can be tomographically combined to yield detailed quantitative 3D reconstructions with a resolution that is not limited by imaging optics. We present robust algorithms for post-processing and alignment of these tomographic phase projections.
Guizar-Sicairos, Manuel, Diaz, Ana, Holler, Mirko, Lucas, Miriam S., Menzel, Andreas, Wepf, Roger A., Bunk, Oliver   +6 more
openaire   +3 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

High-resolution ab initio three-dimensional X-ray diffraction microscopy

, 2005
Coherent X-ray diffraction microscopy is a method of imaging non-periodic isolated objects at resolutions only limited, in principle, by the largest scattering angles recorded.
Aleksandr Noy, Anton Barty, Beetz, Bertero, Choi, Chris Jacobsen, Congwu Cui, Crimmins, Crowther, David Shapiro, Devaney, Elser, Fienup, Fienup, Fienup, Fienup, Frigo, Haddad, Haifeng He, Hau-Riege, He, He, Henry N. Chapman, John C. H. Spence, Kirz, Ladd, Larabell, Luke, Malcolm R. Howells, Marchesini, Marchesini, Miao, Miao, Miao, Miao, Natterer, Neutze, Nishino, Pan, Rachel Rosen, Robinson, Salerno, Sato, Sayre, Sayre, Shapiro, Spence, Spence, Spence, Stefan P. Hau-Riege, Stefano Marchesini, Streibl, Szoke, Tobias Beetz, Uwe Weierstall, Weiss, Williams, Wolf   +57 more
core   +3 more sources

Individual GaAs nanorods imaged by coherent X-ray diffraction

Journal of Synchrotron Radiation, 2009
Using scanning X-ray diffraction microscopy with a spot size of 220 x 600 nm, it was possible to inspect individual GaAs nanorods grown seed-free through circular openings in a SiN(x) mask in a periodic array with 3 microm spacing on GaAs[111]B. The focused X-ray beam allows the determination of the strain state of individual rods and, in combination ...
Andreas, Biermanns, Anton, Davydok, Hendrik, Paetzelt, Ana, Diaz, Volker, Gottschalch, Till Hartmut, Metzger, Ullrich, Pietsch   +6 more
openaire   +2 more sources

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Unveiling nano-scale crystal deformation using coherent X-ray dynamical diffraction

npj Computational Materials
Visualization of internal deformation fields in crystalline materials helps bridge the gap between theoretical models and practical applications.
Longlong Wu, David Yang, Wei Wang, Shinjae Yoo, Ross J. Harder, Wonsuk Cha, Aiguo Li, Ian K. Robinson   +7 more
doaj   +1 more source