Photonics Dictionary

synchrotron radiation (SR)

Radiation emitted by electrons when they travel in circular orbits at speeds close to that of light. Synchrotron radiation occurs in the x-ray and ultraviolet regions of the spectrum. Once considered a dissipative nuisance by accelerator physicists, synchrotron radiation can be used to investigate phenomena as diverse as the structures of solids and the interiors of heart vessels.
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