Simulation of a High-gain Tapered-wiggler Free-electron Laser PDF Download
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Author:
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Category :
Languages : en
Pages :
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Book Description
We present results from a numerical model of a high-gain (electron-beam power> input laser beam power) FEL amplifier.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
We present results from a numerical model of a high-gain (electron-beam power> input laser beam power) FEL amplifier.
Author: W. P. Marable
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Book Description
The development of lasers in which the active medium is a relativistic stream of free electrons has evoked much interest. The prospect of operating these continuously tunable, high gain devices at high efficiencies by appropriately tapering the wiggler field parameters has significantly increased the interest in these devices. Variable parameter wiggler free electron laser have been previously considered for operation in the amplifier configuration and also in the micro-pulse, low gain operation in the oscillator configuration. The present analysis extends the range of application to the case of intense, long pulsed electron beams in which the self-consistently derived space charge potential (arising from the axial bunching of the particles in the beat wave) is not negligible. Also included in this analysis are arbitrarily relativistic beams (i.e., no ultra-relativistic beam approximation). We have obtained theoretical expressions for the nonlinear efficiency and present a comparison of these results with a fully nonlinear simulation.
Author: Henry P. Freund
Publisher: Springer Nature
ISBN: 3031409450
Category : Technology & Engineering
Languages : en
Pages : 747
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Book Description
This book presents a comprehensive description of the physics of free-electron lasers starting from the fundamentals and proceeding through detailed derivations of the equations describing electron trajectories, and spontaneous and stimulated emission. Linear and nonlinear analyses are described, as are detailed explanations of the nonlinear simulation of a variety of configurations including amplifiers, oscillators, self-amplified spontaneous emission, high-gain harmonic generation, and optical klystrons. Theory and simulation are anchored using comprehensive comparisons with a wide variety of experiments.
Author: H. P. Freund
Publisher: Springer
ISBN: 3319751069
Category : Technology & Engineering
Languages : en
Pages : 729
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Book Description
This book presents a comprehensive description of the physics of free-electron lasers starting from the fundamentals and proceeding through detailed derivations of the equations describing electron trajectories, and spontaneous and stimulated emission. Linear and nonlinear analyses are described, as are detailed explanations of the nonlinear simulation of a variety of configurations including amplifiers, oscillators, self-amplified spontaneous emission, high-gain harmonic generation, and optical klystrons. Theory and simulation are anchored using comprehensive comparisons with a wide variety of experiments.
Author: Daniel S. Massey
Publisher:
ISBN: 9781423531845
Category :
Languages : en
Pages : 84
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Book Description
The Free Electron Laser, with its wavelength tunability unlike any other laser, may be used in numerous future applications. These applications range from high energy laser weapons to surgical lasers for medical use. This thesis covers three separate topics concerning the FEL: the height of the separatrix for a tapered undulator, use of dimensionless parameters in a simple model and description for several high gain free electron lasers, and simulations of the Darmstadt free electron laser. The first topic yielded a formula for the separatrix height. The second topic utilized data from the proposed LCLS and TESLA x-ray lasers, the Electron Laser Facility at Lawrence Livermore Labs and the Free Electron Laser experiments at the Massachusetts Institute of Technology to develop dimensionless parameters for use in a simple model. For the last topic desynchronism curves for seven tapers were computed and gave expected results.
Author: Daniel S. Massey
Publisher:
ISBN:
Category :
Languages : en
Pages : 75
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Book Description
The Free Electron Laser, with its wavelength tunability unlike any other laser, may be used in numerous future applications. These applications range from high energy laser weapons to surgical lasers for medical use. This thesis covers three separate topics concerning the FEL: the height of the separatrix for a tapered undulator, use of dimensionless parameters in a simple model and description for several high gain free electron lasers, and simulations of the Darmstadt free electron laser. The first topic yielded a formula for the separatrix height. The second topic utilized data from the proposed LCLS and TESLA x-ray lasers, the Electron Laser Facility at Lawrence Livermore Labs and the Free Electron Laser experiments at the Massachusetts Institute of Technology to develop dimensionless parameters for use in a simple model. For the last topic desynchronism curves for seven tapers were computed and gave expected results.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 376
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 294
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Book Description
Author: H.P. Freund
Publisher: Springer Science & Business Media
ISBN: 9780412725401
Category : Technology & Engineering
Languages : en
Pages : 586
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Book Description
This book is the definitive tutorial text and reference work on free electron lasers. Since the publication of the first edition in 1992 there has been a significant increase both in the number of free-electron lasers in use worldwide, and in the understanding of the various regimes for these devices. In order to maintain the position of this book as the most comprehensive and thorough reference and tutorial in the field, the authors have completely updated the book. In addition to updates and corrections to chapters in the first edition, new chapters have been added.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A two-dimensional numerical model of a high-gain (electron-beam power> input laser beam power) free-electron laser (FEL) has been constructed which includes the effects of diffraction, refraction, and off-axis electron-beam current density and wiggler field variations. In this model, laser beam propagation is governed by a paraxial wave equation with FEL source terms. Conventional resonant electron analysis is used to represent the trapping and deceleration of electrons by the electromagnetic field. The trapped electron-beam current density is forced to decrease as the size of the trapping potential decreases so that detrapping can be simulated. The variable-parameter wiggler field is chosen so that synchronism can be maintained at a single, arbitrary radial position. The magnetic field varies at other radial positions in accordance with Maxwell's equations.
