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Betatron-synchrotron detrapping in a tapered wiggler free electron laser

P. Sprangle, Cha‐Mei Tang

Abstract

Betatron-synchrotron resonance detrapping is shown to take place when the wiggler magnetic field amplitude is tapered. This resonance exists even if the radiation wavefronts are not curved and is only dependent on the transverse gradient of the tapered wiggler field. Additional keywords: equations; computations; Free electron lasers; and Betatron-synchrotron stability. (Author)

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Available abstract

Key concepts: Wiggler, Betatron, Physics, Synchrotron, Synchrotron radiation, Free-electron laser, Optics, Bremsstrahlung