Clark, George L. Formerly, Department of Chemistry, University of Illinois at Urbana-Champaign, Champaign, Illinois.
Schlachter, Alfred S. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley Hills, California.
- Roentgen’s findings
- Later discoveries
- Quantum mechanics
- Links to Primary Literature
- Additional Readings
X-rays, or Roentgen rays, are electromagnetic waves; they are the same as visible light, except that they have shorter wavelengths (higher photon energies). Thus x-rays, visible light, ultraviolet, infrared, microwaves, and radio waves are all electromagnetic radiation in different wavelength (energy) spectral regions. X-rays are generated when fast-moving electrons slow down and stop in matter, when an inner-shell vacancy in an atom is filled by another electron, and when electrons moving at relativistic speeds (speeds near the speed of light) change their direction of motion in space. See also: Electromagnetic radiation
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