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High-gain Compton free electron laser driven by pre-bunched electrons

Konoplev, I V and Phelps, A D R (2000) High-gain Compton free electron laser driven by pre-bunched electrons. Physics of Plasmas, 7 (10). pp. 4280-4290. ISSN 1070-664X

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Abstract

A theoretical analysis of high-gain Compton free electron laser dynamics when the radio frequency (rf) field evolves self-consistently with single resonant particles representing a pre-bunched electron beam is presented and the single particle phase space is studied. Using a set of universally scaled equations the optimal parameters of excitation for a free electron laser (FEL) in the single particle approximation are found. Using a new approach the relations between the initial rf field amplitude, the output field amplitude and the particle's initial detuning from resonance are also found. A set of equations describing the self-consistent evolution of the rf field with e-bunch macro-parameters, such as bunch width and bunch mean phase, is derived from the universally scaled equations under the condition of the uniform initial distribution of electrons in the bunch. The analysis of optical field generation and amplification by compact bunches of electrons is provided. The saturation regime and the physical reason for the saturation in the high-gain Compton FEL driven by pre-bunched electrons are studied and discussed.

Item type: Article
ID code: 35602
Keywords: amplified spontaneous emission, optical-klystron, electron bunches, free electron lasers, microwave devices, Plasma physics. Ionized gases
Subjects: Science > Physics > Plasma physics. Ionized gases
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 07 Nov 2011 13:38
    Last modified: 17 Jul 2013 11:20
    URI: http://strathprints.strath.ac.uk/id/eprint/35602

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