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Physical Phenomena > Magnetic Phenomena > Electromagnetic Phenomena > Electromagnetic Radiation > X-Rays
Physical Phenomena > Radiation > Electromagnetic Radiation > X-Rays
Physical Phenomena > Radiation > Radiation, Ionizing > X-Rays

Preferred term

X-Rays  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Radiation, X
  • Ray, Roentgen
  • Rays, Roentgen
  • Rays, X
  • Ray, X
  • Roentgen Ray
  • Roentgen Rays
  • X Radiation
  • X-Radiation
  • X-Radiations
  • X Ray
  • X-Ray
  • Xray
  • Xrays

Note

  • diagnostic use of X-rays = RADIOGRAPHY + specific disease /diag image; therapeutic use of X-rays = X-RAY THERAPY (general) or /radiother with specific diseases; X-ray or x-ray in translations: follow text

Scope note

  • Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release radiant energy. X-ray wavelengths range from 1 pm to 10 nm. Hard X-rays are the higher energy, shorter wavelength X-rays. Soft x-rays or Grenz rays are less energetic and longer in wavelength. The short wavelength end of the X-ray spectrum overlaps the GAMMA RAYS wavelength range. The distinction between gamma rays and X-rays is based on their radiation source.

History note

  • 91(75); was see under RADIATION, IONIZING 1976-90; was see under RADIATION 1965-75

In other languages

URI

http://www.yso.fi/onto/mesh/D014965

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