منابع مشابه
Simulation studies of atomic resolution X-ray holography
X-ray holography is a new method of structure determination based on measurement of interference of a known reference wave with an unknown object wave (containing information on atomic sites scattering the reference wave) so that phase information is preserved. Unlike X-ray diffraction, it does not demand for translational periodicity in the material. It is based on the idea similar to that of ...
متن کاملAtomic Resolution g-ray Holography Using the Mössbauer Effect
We have observed a strong (2%) angular modulation of the total backscattered conversion electron yield, measured as a function of the incidence angle of the 14.4 keV g rays from a 57Co Mössbauer source irradiating thin epitaxial 57Fe film grown on MgO(001). The measured 2D pattern is the first hologram of the local surrounding of the absorbing nuclei obtained due to nuclear resonant scattering ...
متن کاملHigh resolution Imaging based on X-ray Holography
Up to now standard X-ray imaging technologies, rely primarily on the amplitude properties of the incident radiation, and do not depend on its phase. This is unchanged since Röntgen's discovery [1] that the intensity of an X-ray beam, as measured by the exposure on a film or an equivalent X-ray detection device, was related to the relative transmission properties of an object. However, the new i...
متن کاملDifferential Encoding Brings Higher Resolution to X-ray Lensless Holography
Figure 1, the concept of differential holography is similar to edge scans that are widely used to obtain the profile of a narrow beam. While fine slits are difficult to make, a sharp edge produced by very crude fabrication method can deliver surprisingly high resolution beam profile scans. Shown on the left is the schematics of a typical slit scan whose resolution is determined by the slit widt...
متن کاملMassively parallel X-ray holography
Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Stanford Synchrotron Radiation Laboratory, Stanford Linear Accelerator Center, 2575 Sand Hill Road, Menlo Park, California 94025, USA Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1996
ISSN: 0108-7673
DOI: 10.1107/s0108767396079779