Zobrazeno 1 - 10
of 31
pro vyhledávání: '"V L, Shneerson"'
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 66:32-37
Diffraction from the individual molecules of a molecular beam, aligned parallel to a single axis by a strong electric field or other means, has been proposed as a means of structure determination of individual molecules. As in fiber diffraction, all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa3ab4ff69fafc1f976227597efed616
https://doi.org/10.1107/s0108767309041749
https://doi.org/10.1107/s0108767309041749
Autor:
V. L. Shneerson, Dilano K. Saldin
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 65:128-134
A low-resolution shape of a molecule in solution may be deduced from measured small-angle X-ray scattering I(q) data by exploiting a Hankel transform relation between the coefficients of a multipole expansion of the scattered amplitude and correspond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::021d47f974ce0da06ea55c8b12d0c4c1
https://doi.org/10.1107/s0108767309003237
https://doi.org/10.1107/s0108767309003237
Publikováno v:
Nature Physics. 5:64-67
Moves are afoot to illuminate particles in flight with powerful X-ray bursts, to determine the structure of single molecules, viruses and nanoparticles. This would circumvent important limitations of current techniques, including the need to condense
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a94170ed043b05ecde60fbf2a961fb
https://doi.org/10.1038/nphys1129
https://doi.org/10.1038/nphys1129
Publikováno v:
Surface Science. 602:2473-2477
We report on the re-determination of the structure of p(2 × 2)Sb/Cu(0 0 1) from measured LEED I/V data. The structure solution is performed in two steps. First an approximate “image” of the surface structure model is found by an application to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5903d9dfd58480b3282b2521cce7fd3e
https://doi.org/10.1016/j.susc.2008.05.022
https://doi.org/10.1016/j.susc.2008.05.022
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 64:303-315
It is demonstrated that a common-line method can assemble a three-dimensional oversampled diffracted intensity distribution suitable for high-resolution structure solution from a set of measured two-dimensional diffraction patterns, as proposed in ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7461fba25dcf83f431dc4fa8f5dd94b4
https://doi.org/10.1107/s0108767307067621
https://doi.org/10.1107/s0108767307067621
Autor:
R. Fung, S. S. Parihar, H. T. Johnson-Steigelman, Dilano K. Saldin, Paul F. Lyman, V. L. Shneerson
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 63:239-250
The discovery that the phase problem of diffraction from non-periodic objects may be solved by oversampling the diffraction intensities in reciprocal space with respect to a Nyquist criterion has opened up new vistas for structure determination by di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e590eeb289b388f86ebb18bbe87fd52
https://doi.org/10.1107/s0108767307002930
https://doi.org/10.1107/s0108767307002930
Autor:
S. S. Parihar, Paul F. Lyman, E. D. Lu, V. L. Shneerson, Dilano K. Saldin, H. T. Johnson-Steigelman, R. Fung
Publikováno v:
Surface Science. 600:424-435
Adsorption of 0.5 monolayers (ML) of Sb on the Au(1 1 0) surface resulted in the formation of a c(2 x 2) surface reconstruction. Analysis of surface X-ray diffraction data by a direct method revealed the existence of an ordered substitutional surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d6b477d307af8edf9ba203123f717de
https://doi.org/10.1016/j.susc.2005.11.019
https://doi.org/10.1016/j.susc.2005.11.019
Publikováno v:
Physica B: Condensed Matter. 336:16-26
We propose a method for the solution of surface structures from X-ray diffraction based on the phasing of measured structure factor amplitudes in two stages. First, incorporation of calculated amplitudes and phases of the structure factors of the kno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c2514d2cca709ebaaaff1168f38af9c
https://doi.org/10.1016/s0921-4526(03)00265-5
https://doi.org/10.1016/s0921-4526(03)00265-5
Publikováno v:
Journal of Physics: Condensed Matter. 14:4087-4100
A recently developed recursive algorithm for the direct recovery of the electron density of a surface unit cell from scattered x-ray intensities is adapted to crystal surfaces that may consist of mutually rotated domains. We examine the cases of both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d195831c7697cf0450364ff2f08ce5
https://doi.org/10.1088/0953-8984/14/16/303
https://doi.org/10.1088/0953-8984/14/16/303
Publikováno v:
Journal of Physics: Condensed Matter. 13:10689-10707
We develop an iterative input–output feedback method for the phasing of surface x-ray diffraction (SXRD) amplitudes that relies on successive operations in real and reciprocal space. We demonstrate its use for the recovery of the real and positive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ee7bdbfb904ec868229385fa7d10d4e
https://doi.org/10.1088/0953-8984/13/47/311
https://doi.org/10.1088/0953-8984/13/47/311