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  2. Radiography - Wikipedia

    en.wikipedia.org/wiki/Radiography

    Taking an X-ray image with early Crookes tube apparatus, late 1800s. Radiography's origins and fluoroscopy's origins can both be traced to 8 November 1895, when German physics professor Wilhelm Conrad Röntgen discovered the X-ray and noted that, while it could pass through human tissue, it could not pass through bone or metal. [1]

  3. X-ray - Wikipedia

    en.wikipedia.org/wiki/X-ray

    Natural color X-ray photogram of a wine scene. Note the edges of hollow cylinders as compared to the solid candle. William Coolidge explains medical imaging and X-rays.. An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.

  4. Paleoradiology - Wikipedia

    en.wikipedia.org/wiki/Paleoradiology

    Two mummified Egyptian cats with a radiograph of the cat on the left. Radiographs, or X-rays, have been used to study and observe ancient remains since their invention by Wilhelm Röntgen in 1895. This early form of X-ray, sometimes known as Röntgenograms, was immediately used by physicists, anthropologists, anatomists and archaeologists as ...

  5. History of radiation protection - Wikipedia

    en.wikipedia.org/wiki/History_of_radiation...

    Unprotected experiments in the U.S. in 1896 with an early X-ray tube (Crookes tube), when the dangers of radiation were largely unknown.[1]The history of radiation protection begins at the turn of the 19th and 20th centuries with the realization that ionizing radiation from natural and artificial sources can have harmful effects on living organisms.

  6. History of computed tomography - Wikipedia

    en.wikipedia.org/wiki/History_of_computed_tomography

    The history of X-ray computed tomography (CT) dates back to at least 1917 with the mathematical theory of the Radon transform. [ 1 ] [ 2 ] In the early 1900s an Italian radiologist named Alessandro Vallebona invented tomography (named "stratigrafia") which used radiographic film to see a single slice of the body.

  7. Category:History of X-rays - Wikipedia

    en.wikipedia.org/wiki/Category:History_of_X-rays

    Pages in category "History of X-rays" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. H. History of X-ray ...

  8. Projectional radiography - Wikipedia

    en.wikipedia.org/wiki/Projectional_radiography

    When an exposure is made, X-ray radiation exits the tube as what is known as the primary beam. When the primary beam passes through the body, some of the radiation is absorbed in a process known as attenuation. Anatomy that is denser has a higher rate of attenuation than anatomy that is less dense, so bone will absorb more X-rays than soft tissue.

  9. History of X-ray astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_X-ray_astronomy

    Some 2 dozen known X-ray sources were monitored—some for more than 100 days—and a number of new X-ray transients were discovered. The Diffuse X-ray Spectrometer (DXS) STS-54 package was flown as an attached payload in January, 1993 to obtain spectra of the diffuse soft X-ray background. DXS obtained the first-ever high resolution spectra of ...