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  2. 'Portal' will get ray tracing to show off NVIDIA's 4000 ...

    www.engadget.com/portal-rtx-ray-tracing-nvidia...

    Similar to what we saw with Minecraft RTX, Portal's ray tracing mod adds a tremendous amount of depth to a very familiar game. And thanks to DLSS 3, the latest version of NVIDIA's super sampling ...

  3. Portal Reloaded - Wikipedia

    en.wikipedia.org/wiki/Portal_Reloaded

    Portal Reloaded is a 2021 free modification for Portal 2, created by German developer Jannis Brinkmann. As in the official Portal games, gameplay involves solving puzzles by manipulating portals which allow the player to move through space. Additionally, the mod allows players to shoot a third "time portal", allowing traversal across two ...

  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. Portal 2 - Wikipedia

    en.wikipedia.org/wiki/Portal_2

    Single-player, multiplayer. Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360. The digital PC version is distributed online by Valve's Steam service, while all retail editions were distributed by Electronic Arts. A port for the Nintendo Switch was included as part of Portal ...

  6. X-ray - Wikipedia

    en.wikipedia.org/wiki/X-ray

    X-rays with high photon energies above 5–10 keV (below 0.2–0.1 nm wavelength) are called hard X-rays, while those with lower energy (and longer wavelength) are called soft X-rays. The intermediate range with photon energies of several keV is often referred to as tender X-rays.

  7. X-ray source - Wikipedia

    en.wikipedia.org/wiki/X-ray_source

    Natural X-ray sources: Astrophysical X-ray source, as viewed in X-ray astronomy. X-ray background. Naturally occurring radionuclides. Artificial X-ray sources. Radiopharmaceuticals in radiopharmacology. Radioactive tracer. Brachytherapy. X-ray tube, a vacuum tube that produces X-rays when current flows through it.

  8. X-ray machine - Wikipedia

    en.wikipedia.org/wiki/X-ray_machine

    The X-ray housing is turned by 90° for a chest radiograph. An X-ray machine is a device that uses X-rays for a variety of applications including medicine, X-ray fluorescence, electronic assembly inspection, and measurement of material thickness in manufacturing operations. In medical applications, X-ray machines are used by radiographers to ...

  9. X-ray lithography - Wikipedia

    en.wikipedia.org/wiki/X-ray_lithography

    X-ray lithography is a process used in semiconductor device fabrication industry to selectively remove parts of a thin film of photoresist. It uses X-rays to transfer a geometric pattern from a mask to a light-sensitive chemical photoresist , or simply "resist," on the substrate to reach extremely small topological size of a feature.