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  2. Gray (unit) - Wikipedia

    en.wikipedia.org/wiki/Gray_(unit)

    Monument to the X-ray and Radium Martyrs of All Nations erected 1936 at St. Georg hospital in Hamburg, commemorating 359 early radiology workers. Wilhelm Röntgen discovered X-rays on November 8, 1895, and their use spread very quickly for medical diagnostics, particularly broken bones and embedded foreign objects where they were a ...

  3. Lada Xray - Wikipedia

    en.wikipedia.org/wiki/Lada_XRAY

    The Lada XRAY is a subcompact crossover SUV produced by the Russian car manufacturer AvtoVAZ. Designed by a team led by Steve Mattin, [2] the chief designer of the Lada Vesta, [3] it was first presented as a concept in August 2012 at the Moscow International Automobile Salon. A newer version, the Lada XRAY Concept 2, debuted in August 2014.

  4. Phase-contrast X-ray imaging - Wikipedia

    en.wikipedia.org/wiki/Phase-contrast_X-ray_imaging

    X-ray absorption (left) and differential phase-contrast (right) image of an in-ear headphone obtained with a grating interferometer at 60kVp. Phase-contrast X-ray imaging or phase-sensitive X-ray imaging is a general term for different technical methods that use information concerning changes in the phase of an X-ray beam that passes through an object in order to create its images.

  5. Dentsply Sirona - Wikipedia

    en.wikipedia.org/wiki/Dentsply_Sirona

    The new company then purchased medical X-ray tubes supplier Eureka X-Ray Inc., which was key since Gendex was a major manufacturer of X-ray systems (Eureka X-Ray was later sold in 1994). [13] Healthco, its main distributor in the US, went bankrupt in 1993.

  6. Gamma correction - Wikipedia

    en.wikipedia.org/wiki/Gamma_correction

    The effect of gamma correction on an image: the original image was taken to varying powers, showing that powers larger than 1 make the shadows darker, while powers smaller than 1 make dark regions lighter.

  7. Fiducial marker - Wikipedia

    en.wikipedia.org/wiki/Fiducial_marker

    Comparison of augmented reality fiducial markers for computer vision. In applications of augmented reality, fiducials help resolve several problems of integration between the real world view and the synthetic images that augment it. [2]

  8. History of X-ray astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_X-ray_astronomy

    The detectors for observing cosmic X-ray sources were X-ray proportional counters. The hard X-ray telescope operated over the energy range 7 - 550 keV. OSO 7 performed an X-ray All-sky survey and discovered the 9-day periodicity in Vela X-1 which led to its optical identification as a HMXRB. OSO 7 was launched on September 29, 1971 and operated ...

  9. Comparison of digital and film photography - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_digital_and...

    The merits of digital versus film photography were considered by photographers and filmmakers in the early 21st century after consumer digital cameras became widely available.