منابع مشابه
Introducing an Optimized Method for Obtaining X-ray Diffraction Patterns of Biological Tissues
Introduction Individual X-Ray diffraction patterns of biological tissues are obtained via interference of coherent scattering with their electrons. Many scientists have distinguished normal and cancerous breast tissue, bone density, and urinary stone types using the X-Ray diffraction patterns resulting from coherent scattering. The goal of this study was to introduce an optimized method for obt...
متن کاملX-ray image reconstruction from a diffraction pattern alone
S. Marchesini,* H. He, H. N. Chapman, S. P. Hau-Riege, A. Noy, M. R. Howells, U. Weierstall, and J. C. H. Spence Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550-9234, USA Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA Arizona State University, Department of Physics, Tempe, Arizona 85287-1504, USA ~Received 26 June 2...
متن کاملX-ray Powder Diffraction Pattern Indexing for Pharmaceutical Applications
Crystal-structure determination using X-ray diffraction from single crystals is a well-developed technique (1). A single crystal structure provides full structural characterization of the form at the atomic scale. The main drawback to single crystal diffraction is the need to grow a sufficiently large and defect-free crystal for analysis, which is not practical for all crystal forms. Furthermor...
متن کاملSynthesis and X-ray diffraction pattern for MgCu2
To clarify the inconsistency between calculated and existing experimental X-ray diffraction (XRD) pattern for dicopper magnesium (MgCu2) nd to identify the impurity phase in Cu-sheathed MgB2 superconductors, polycrystalline MgCu2 samples were synthesized and studied by XRD easurement. The XRD result shows that the (2 2 0), (4 2 2), (6 2 0), and (6 4 2) reflection lines, which are missing from t...
متن کاملAn X-ray diffractometer using mirage diffraction
Some characteristics are reported of a triple-crystal diffractometer with a (+, -, +) setting of Si(220) using mirage diffraction. The first crystal is flat, while the second and third crystals are bent. Basically, the first crystal is used as a collimator, the second as a monochromator and the third as the sample. The third crystal also works as an analyzer. The advantages of this diffractomet...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1991
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed068p969.1