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Concise expression of a classical radiation spectrum

Journal Article · · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)
 [1]
  1. Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

In this paper we present a concise expression of the classical electromagnetic radiation spectrum of a moving charge. It is shown to be equivalent to the often used and much more complicated form derived from the Lienard-Wiechert potentials when the observation distance [ital R] satisfies the condition [ital R][much gt][gamma][lambda]. The expression reveals a relationship between the radiation spectrum and the motion of the radiation source. It also forms the basis of an efficient computing approach, which is of practical value in numerical calculations of the spectral output of accelerated charges. The advantages of this approach for analytical and numerical applications are discussed and the bending-magnet synchrotron radiation spectrum is calculated according to the approach.

DOE Contract Number:
AC03-76SF00098
OSTI ID:
6771834
Journal Information:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 47:6; ISSN PLEEE8; ISSN 1063-651X
Country of Publication:
United States
Language:
English