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X-ray optics is the branch of optics dealing with X-rays, rather than visible light.It deals with focusing and other ways of manipulating the X-ray beams for research techniques such as X-ray diffraction, X-ray crystallography, X-ray fluorescence, small-angle X-ray scattering, X-ray microscopy, X-ray phase-contrast imaging, and X-ray astronomy.
Schematic diagram of lobster-eye lens. The green arrow represents the incident light and the red arrows represent the normal of the channel wall. [1]Lobster-eye optics are a biomimetic design, based on the structure of the eyes of a lobster with an ultra wide field of view, used in X-ray optics.
X-RIS (for X-Ray Imaging Solutions) is a Belgian company based in Liège and active in the field of digital radiography in non-destructive testing and in security. Founded in 2010, the company won the Belgium Deloitte Technology Fast 50 in 2015 and again in 2017. It has supplied x-ray solutions to Airbus, Safran, TOTAL, the TÜV.
The occasional 2–3 x-ray studies a week soon became 3–10 CT scans, or more, a night. Because ER physicians are not trained to read CT scans or MRIs, radiologists went from working 8–10 hours a day, five and half days a week to a schedule of 24 hours a day, 7 days a week coverage.
The DQE is generally expressed in terms of Fourier-based spatial frequencies as: [10] = = ()where u is the spatial frequency variable in cycles per millimeter, q is the density of incident x-ray quanta in quanta per square millimeter, G is the system gain relating q to the output signal for a linear and offset-corrected detector, T(u) is the system modulation transfer function, and W(u) is the ...
The incident unfolded at about 10 p.m. Dec. 15 when Transportation Security Administration officers flagged a woman who had put her carry-on bag through the X-ray machine at Terminal 4, the agency ...
Just as movies, TV, and web videos are to a substantive extent no longer separate technologies, but only variations on common underlying digital themes, so, too, are the X-ray imaging modes, and indeed, the term "X-ray imaging" is the ultimate hypernym that unites all of them, even subsuming both fluoroscopy and four-dimensional CT (4DCT ...
A lunar eclipse above Lofer, Austrian province of Salzburg, in the early hours of Monday, Sept. 28, 2015. (AP Photo/Kerstin Joensson)