X-Ray Spectrum – Characteristic and Continuousįor X-rays generated by X-ray tube, the part of energy that is transformed into radiation varies from zero up to the maximum energy of the electron when it hits the anode. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers (3×10 16 Hz to 3×10 19 Hz), corresponding to energies in the range 100 eV to 100 keV. Photons are categorized according to the energies from low-energy radio waves and infrared radiation, through visible light, to high-energy X-rays and gamma rays. The radiation frequency is key parameter of all photons, because it determines the energy of a photon. X-rays are high-energy photons with short wavelengths and thus very high frequency. X-rays, also known as X-radiation, refers to electromagnetic radiation (no rest mass, no charge) of high energies.
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