منابع مشابه
Textbook for hard X-ray focusing with Kirkpatrick-Baez optics
1. Background Currently, grand-scale synchrotron radiation facilities, where high-quality X-ray sources are available in wide energy ranges from the softto hardX-ray regions, have significantly advanced the performance characteristics of analytical technologies using the fluorescence, absorption and diffraction effects of X-rays in various materials. The application of X-ray microscopy with the...
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Hard Real-Time systems are becoming more and more popular in sophisticated applications such as flight control, automated manufacturin plants, controllers of robots, etc. Because of the strict timing constraints such systems must have a high predictability of their timing behaviour. Th requires specific scheduling algorithms able to make the requirement consistent with all other characteristics...
متن کاملNanometer focusing of hard x rays by phase zone plates
Focusing of 8 keV x rays to a spot size of 150 and 90 nm full width at half maximum have been demonstrated at the firstand third-order foci, respectively, of a phase zone plate ~PZP!. The PZP has a numerical aperture of 1.5 mrad and focusing efficiency of 13% for 8 keV x rays. A flux density gain of 121 000 was obtained at the first-order focus. In this article, the fabrication of the PZP and i...
متن کاملEfficient sub 100 nm focusing of hard x rays
An x-ray beam with energy of 20.5 keV has been efficiently focused down to a spot size as small as 90 nm390 nm by a Kirkpatrick–Baez reflecting mirrors device. The first mirror, coated with a graded multilayer, plays both the role of vertical focusing device and monochromator, resulting in a very high flux s231011 photons/sd and medium monochromaticity sDE /E,10−2d. Evaluation of the error cont...
متن کاملGermanium and silicon kinoform focusing lenses for hard x-rays
Progress in synchrotron radiation instrumentation and successful fabrication of novel x-ray optics enables probing the matter at microand nano-scales from virtually any sciences – from biomedical, environmental to material sciences. In-line, compact focusing optics, based on refraction, are designed and fabricated for use in hard and very hard x-ray beamlines at Diamond. The first test results ...
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ژورنال
عنوان ژورنال: Nature Nanotechnology
سال: 2008
ISSN: 1748-3387,1748-3395
DOI: 10.1038/nnano.2008.298