roentgen ray - meaning and definition. What is roentgen ray
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What (who) is roentgen ray - definition

ELECTROMAGNETIC RADIATION OF WAVELENGTH RANGING FROM 10 PM TO 10 NM
X ray; Röntgen ray; X-Ray; Hard X-ray; Roentgen ray; X-Ray Spectrum; Xray; Roentgen radiation; X rays; Roentgen Rays; Rontgen Rays; X Ray; Röntgen radiation; X-rayed; Soft X-ray; Soft X-rays; Hard X-rays; X-Rays; Hard x-ray; Soft x-ray; X-RAY; Xrays; Röntgen rays; X-ray photo; X-ray dye; X-rays; Roentgen rays; Rontgen ray; X-ray technology; Rontgen rays; Rontgen radiation; X-radiation; X-raying; Röntgen field; X - ray; Radio diagnostics; X-ray generation; X-ray radiation; X-waves; X radiation; X wave; X waves; Frank Austin and the Frost brothers; X-ray safety; X+rays; HX photons; SX photons; XRAY; X-ray scanner; History of X-ray technology; X-radiograph; Border control x-ray
  • Chandra's image of the galaxy cluster Abell 2125 reveals a complex of several massive multimillion-degree-Celsius gas clouds in the process of merging.
  • photoabsorption]], as well as a leveling off at higher photon energies due to [[Compton scattering]]. The attenuation length is about four orders of magnitude longer for hard X-rays (right half) compared to soft X-rays (left half).
  • Abdominal radiograph]] of a pregnant woman, a procedure that should be performed only after proper assessment of benefit versus risk
  • CT scan]] ([[transverse plane]]) slice – a modern application of [[medical radiography]]
  • Natural color X-ray [[photogram]] of a wine scene. Note the edges of hollow cylinders as compared to the solid candle.
  • Example of a [[Crookes tube]], a type of [[discharge tube]] that emitted X-rays
  • Taking an X-ray image with early [[Crookes tube]] apparatus, late 1800s. The Crookes tube is visible in center. The standing man is viewing his hand with a [[fluoroscope]] screen. The seated man is taking a [[radiograph]] of his hand by placing it on a [[photographic plate]]. No precautions against radiation exposure are taken; its hazards were not known at the time.
  • access-date= 2007-12-03}}</ref>
  • radiation exposure]] during the X-ray procedure would be negligible.
  • Patient undergoing an x-ray exam in a hospital radiology room
  • Images by James Green, from "Sciagraphs of British Batrachians and Reptiles" (1897), featuring (from left) ''Rana esculenta'' (now ''[[Pelophylax lessonae]]''), ''Lacerta vivipara'' (now ''[[Zootoca vivipara]]''), and ''[[Lacerta agilis]]''
  • Plain radiograph of the right knee
  • Phase-contrast X-ray image of a spider
  • Surgical removal of a bullet whose location was diagnosed with X-rays (see inset) in 1897
  • Ionizing radiation hazard symbol
  • A [[chest radiograph]] of a female patient, demonstrating a [[hiatal hernia]]
  • characteristic K lines]] for rhodium atoms.
  • publisher=Society of Photographic Instrumentation Engineers}}</ref>
  • [[Wilhelm Röntgen]]
  • X-ray fine art photography of [[needlefish]] by [[Peter Dazeley]]
  • 1896 plaque published in ''"Nouvelle Iconographie de la Salpetrière"'', a medical journal. In the left a hand deformity, in the right same hand seen using [[radiography]]. The authors named the technique Röntgen photography.
  • UV light]]. Different applications use different parts of the X-ray spectrum.
  • Each dot, called a reflection, in this diffraction pattern forms from the constructive interference of scattered X-rays passing through a crystal. The data can be used to determine the crystalline structure.

roentgen rays         
¦ plural noun dated X-rays.
X rays         
·add. ·noun ·pl ·Alt. of X-rays.
X-rays         
·add. ·noun ·pl The Rontgen rays;
- so called by their discoverer because of their enigmatical character.

Wikipedia

X-ray

An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 145 eV to 124 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to as Röntgen radiation, after the German scientist Wilhelm Conrad Röntgen, who discovered it on November 8, 1895. He named it X-radiation to signify an unknown type of radiation. Spellings of X-ray(s) in English include the variants x-ray(s), xray(s), and X ray(s).

X-rays are also used in ways such as checking for broken bones, detecting certain kinds of diseases, "identification of some metals", and ascertaining the locations of weak points in steel.