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Source-region calculation of dipole power

2005/10/12 by F. S. Felber, Felber, F. S.
Engineering · Physics and Astronomy · #Classical Physics (physics.class-ph) #FOS: Physical sciences #Particle accelerators and beam dynamics #Plasma Diagnostics and Applications #Plasma Physics (physics.plasm-ph) #Quantum and Classical Electrodynamics #physics.class-ph #physics.plasm-ph

paper · pdf · doi:10.48550/arxiv.physics/0510115

5 pages, 3 figures

arxiv created 2005/10/12 · openalex publication_date 2005/10/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

An exact calculation of the retarded electric field in the source region of a system of individual charges, expanded to third order in velocity, shows that all nonrelativistic accelerated charges in a system emit dipole electromagnetic energy at the Larmor rate. In general, some of the emitted dipole power is reabsorbed by doing work on other charges in the system, and some is radiated. If the system has zero net dipole moment, all the emitted dipole power is reabsorbed, and none is radiated.

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