Abstract
Maxwell’s equations show that an accelerating electrical charge emits electromagnetic radiation. The emission of radio waves by electrons oscillating within an antenna is a familiar example of this effect. Electrons moving through a vacuum can be accelerated radially by a magnetic field oriented perpendicularly to their direction of motion. The high energy electrons circulating within a synchrotron experience a centripetal acceleration each time they pass through a bending magnet. Electrons whose path is bent by the magnetic field emit photons along the direction tangential to their path. Thus at each bending magnet around a synchrotron ring, radiation is emitted in a fan-shaped distribution; the limits of the “fan” are the directions of travel of the electrons before entering and after leaving the bending magnet. The radiation covers a very broad spectral range as shown in Fig. 1; this is the most important feature of synchrotron radiation.
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© 1982 Plenum Press, New York
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Sutherland, J.C. (1982). Synchrotron Radiation Sources for Photobiology and Ultraviolet, Visible and Infrared Spectroscopy. In: Hélène, C., Charlier, M., Montenay-Garestier, T., Laustriat, G. (eds) Trends in Photobiology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-9203-7_2
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DOI: https://doi.org/10.1007/978-1-4615-9203-7_2
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4615-9205-1
Online ISBN: 978-1-4615-9203-7
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