Soft X-ray diffraction imaging with and without lenses and Radiation damage studies
نویسنده
چکیده
of the Dissertation Soft X-ray diffraction imaging with and without lenses and Radiation damage studies
منابع مشابه
Extending the Methodology of X-ray Crystallography to Non-Crystalline Specimens
Since the emergence of powerful X-ray sources such as synchrotron radiation, the area of X-ray structure determination gradually evolved into two fields. The relatively small one is X-ray Microscopy which employs X-ray lenses such as zone plates, compound refractive lenses, curved mirrors and glass capillaries to focus X-rays to determine the structures of non-crystalline specimens. The resolut...
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We report the first image of an intact, frozen hydrated eukaryotic cell using x-ray diffraction microscopy, or coherent x-ray diffraction imaging. By plunge freezing the specimen in liquid ethane and maintaining it below -170 degrees C, artifacts due to dehydration, ice crystallization, and radiation damage are greatly reduced. In this example, coherent diffraction data using 520 eV x rays were...
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Titanium nitride-Copper (TiN-Cu) nanocomposite films were deposited onto stainless steel substrate using hollow cathode discharge ion plating technique. The influence of Cu content in the range of 2-7 at.% on the microstructure, morphology and mechanical properties of deposited films were investigated. Structural properties of the films were studied by X-ray diffraction pattern. Topography of t...
متن کاملAn Overview of Technological Developments in Medical Applications of X-Rays and Radioactivity
The years 1895 to 1898 were momentous for their impact on health and human well beings. First, Wilhelm Roentgen noted a glowing fluorescent screen, caused by invisible rays. This event subsequently led to the discovery of X-rays in 1895, and thus the birth of the “atomic ageâ€. Next Becquerel’s investigations of these mysterious rays led to his experiments with uranium salt crystals. He th...
متن کاملاستفاده از شتابگر الکترونی MeV 10 برای تولید تابش چرنکوف درناحیه پرتوایکس نرم
Cherenkov radiation is generated when relativistic charged particles move in a medium with refractive index larger than unity. Although, the refractive index is generally smaller than unity in X-ray region, in the vicinity of atomic absorption edges, the refractive index may exceed unity and Cherenkov radiation can be generated in soft X-ray region with a narrow band width. In this paper, the s...
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تاریخ انتشار 2004