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2. X-ray machine - Wikipedia

   en.wikipedia.org/wiki/X-ray_machine

   An X-ray generator generally contains an X-ray tube to produce the X-rays. Possibly, radioisotopes can also be used to generate X-rays. [1]An X-ray tube is a simple vacuum tube that contains a cathode, which directs a stream of electrons into a vacuum, and an anode, which collects the electrons and is made of tungsten to evacuate the heat generated by the collision.

3. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

4. X-ray emission spectroscopy - Wikipedia

   en.wikipedia.org/wiki/X-ray_emission_spectroscopy

   X-ray emission spectroscopy. X-ray emission spectroscopy ( XES) is a form of X-ray spectroscopy in which a core electron is excited by an incident x-ray photon and then this excited state decays by emitting an x-ray photon to fill the core hole. The energy of the emitted photon is the energy difference between the involved electronic levels.

5. X-ray laser - Wikipedia

   en.wikipedia.org/wiki/X-ray_laser

   X-ray laser. An X-ray laser can be created by several methods either in hot, dense plasmas or as a free-electron laser in an accelerator. This article describes the x-ray lasers in plasmas, only. The plasma x-ray lasers rely on stimulated emission to generate or amplify coherent, directional, high-brightness electromagnetic radiation in the ...

6. X-ray diffraction computed tomography - Wikipedia

   en.wikipedia.org/wiki/X-ray_diffraction_computed...

   A 2D area detector then records the scattered X-rays, optimizing for best counting statistics and speed. Typically, the translational scan's size surpasses the sample's diameter, ensuring its full coverage at all assessed angles. The size of the translation step is commonly aligned with the X-ray beam's horizontal size.

7. X-ray detector - Wikipedia

   en.wikipedia.org/wiki/X-ray_detector

   X-ray detector. Acquisition of projectional radiography, with an X-ray generator and an imaging detector. X-ray detectors are devices used to measure the flux, spatial distribution, spectrum, and/or other properties of X-rays . Detectors can be divided into two major categories: imaging detectors (such as photographic plates and X-ray film ...