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Free-Electron Laser

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Beam-Wave Interaction in Periodic and Quasi-Periodic Structures

Part of the book series: Particle Acceleration and Detection ((PARTICLE))

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Abstract

In Chap. 1 we have shown that the interaction of electrons with an electromagnetic wave is possible even when the phase velocity of the latter is larger than \( c \), provided that there is a way to conserve simultaneously both energy and momentum. In a free-electron laser (FEL) this is facilitated by the presence of a periodic magnetic field. In most cases, the components of this field are transverse to the initial velocity of the electron. An electron injected in a periodic magnetic field (wiggler) oscillates and, as a result, it emits radiation.

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  1. Department of Electrical Engineering, Israel Institute of Technology, Haifa, 32000, Israel

    Professor Levi Schächter

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  1. Professor Levi Schächter
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Correspondence to Levi Schächter .

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Schächter, L. (2011). Free-Electron Laser. In: Beam-Wave Interaction in Periodic and Quasi-Periodic Structures. Particle Acceleration and Detection. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19848-9_7

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  • DOI: https://doi.org/10.1007/978-3-642-19848-9_7

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  • Print ISBN: 978-3-642-19847-2

  • Online ISBN: 978-3-642-19848-9

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