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| X-Rays Grenz Rays | Roentgen Rays | Radiation, X | X-Radiation | Xrays | Radiations, X | Rays, Grenz | Rays, Roentgen | X Radiation | X Radiations | X Rays | X-Radiations | X-Ray | Xray Penetrating electromagnetic radiation emitted when the inner orbital electrons of an atom are excited and release energy - in the same energy range as gamma rays (0.010-10 Mev), but of non-nuclear origin, of shorter wavelength than ultraviolet; soft x-rays or Grenz rays are less penetrating and longer in wavelength than hard x-rays. |