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Theoretical Study Of Novel Concepts For Compact High Gain Free Electron Lasers
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Book Synopsis Theoretical Study of Novel Concepts for Compact, High-gain Free Electron Lasers by : Panagiotis Baxevanis
Download or read book Theoretical Study of Novel Concepts for Compact, High-gain Free Electron Lasers written by Panagiotis Baxevanis and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the free-electron laser (FEL) has demonstrated its value as a tunable source of bright, coherent radiation with photon energies up to the X-ray region. For such short radiation wavelengths, three-dimensional (3D) effects (due to diffraction, emittance and focusing) become significant and must be taken into consideration. In this work, we present a systematic, fully 3D theoretical formalism applicable to a range of concepts for compact, high-gain FELs. These include novel schemes involving the use of transverse gradient (TGU) or laser undulators. Our approach utilizes either a standard eigenmode analysis for constant-parameter systems or a non-eigenmode expansion technique in terms of orthogonal transverse modes for cases where the parameters of the electron beam and/or the undulator vary along the longitudinal direction. The results we obtain fully characterize the system (electron beam and radiation) in the linear regime of the interaction and are shown to be in excellent agreement with simulation. Moreover, the formalism developed here can be used in comprehensive, theory-based optimization studies, with significant applications in FEL design.
Book Synopsis Theoretical and Experimental Studies on Novel High-Gain Seeded Free-Electron Laser Schemes by : Chao Feng
Download or read book Theoretical and Experimental Studies on Novel High-Gain Seeded Free-Electron Laser Schemes written by Chao Feng and published by Springer. This book was released on 2015-12-18 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on the study of novel high-gain free-electron laser (FEL) operation schemes with external seed lasers. The technique of manipulating the phase space of the electron beam, which is widely used in novel seeded FEL schemes, is systematically studied. Several novel FEL schemes are proposed for the generation of intense coherent FEL pulses with short wavelength, sub-femtosecond pulse length or multiple carrier frequency properties, which meet the needs of FEL users. Results of experiments are described for the recently proposed FEL schemes such as echo-enabled harmonic generation and cascaded high-gain harmonic generation. New photon/electron beam diagnostic methods are also developed for these experiments and future high-gain FEL facilities.
Book Synopsis Lectures On The Free Electron Laser Theory And Related Topics by : Giuseppe Dattoli
Download or read book Lectures On The Free Electron Laser Theory And Related Topics written by Giuseppe Dattoli and published by World Scientific. This book was released on 1993-02-03 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents:Electron Beam OpticsSynchrotron Radiation: A Short DescriptionSynchrotron Radiation: Emission in Undulator MagnetsAccelerators with Radiative DumpingFree Electron Laser: An IntroductionFEL Pendulum EquationUndulator FEL DynamicsFEL Integral EquationMiscellaneous Considerations on the FEL Gain and the High-Gain LimitA Qualitative Description of Storage-Ring FEL Dynamics and Longitudinal Mode Coupling Readership: Laser physicists. keywords:Free Electron Laser;Laser;Linac;Microtron;Storage Ring;Synchrotron Radiation;Undulators;Wigglers;Bending Magnets;Coherent Radiation Sources;Beam Optics;Colson Equation;Electron Beam Transport;FEL Pendulum Equation;Gain Curve;High Gain Regime;Saturation;Small Gain Regime;Transport Channel;Magnetic Undulator
Book Synopsis Classical Theory of Free-Electron Lasers by : Eric B Szarmes
Download or read book Classical Theory of Free-Electron Lasers written by Eric B Szarmes and published by Morgan & Claypool Publishers. This book was released on 2014-12-01 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook focuses on the fully classical theory of FELs with application to FEL oscillators and develops the fundamentals of FEL theory in sufficient depth to provide both a solid understanding of FEL physics and a solid background for research in the
Book Synopsis Free Electron Laser Theoretical Study by : M. Zales Caponi
Download or read book Free Electron Laser Theoretical Study written by M. Zales Caponi and published by . This book was released on 1981 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report of the Free Electron Laser Theoretical Study carried out by TRW for the AFOSR during the period July 80 to September 81. Four distinct but interrelated problems that play an important role in the characteristics of a Free Electron Laser oscillator were investigated: (1) Transverse Effects: The effect of wiggler field inhomogeneity as well as the influence of different transverse profiles of the signal field and the electron beam on the FEL characteristics were studied in detail. A dramatic decrease in gain and efficiency is found with increasing value of the ratio of electron beam radius to photon beam radius. (2) Small Signal (SS) Gain: A1-D investigation of the small signal gain for a Tapered Wiggler Free Electron Laser was performed analytically for cold electron beams and numerically for cold and warm electron beams. It was found that the small signal gain spectrum shifts and decreases in amplitude as a function of increasing wiggler taper. (3) Multicomponent Wiggler Free Electron Laser (MCWFEL): The results from (1) and (2) motivated the development of a new FEL configuration that could have high small signal gain and sufficiently high efficiency at high powers with nearly the same output frequency. The new FEL is a combination of several wiggler components. (4) Finite Pulse Length Simulations and Kinetic Effects of Trapped Particle Instabilities in Free Electron Lasers: A 1-D finite pulse code was developed and the effects of pulse slippage detrapping of electrons at the beam edge and parasitic instabilities investigated for a tapered wiggler Free Electron Laser. (Author).
Book Synopsis Free-Electron Lasers in the Ultraviolet and X-Ray Regime by : Peter Schmüser
Download or read book Free-Electron Lasers in the Ultraviolet and X-Ray Regime written by Peter Schmüser and published by Springer. This book was released on 2014-02-19 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of the book is to provide a systematic and didactic approach to the physics and technology of free-electron lasers. Numerous figures are used for illustrating the underlying ideas and concepts and links to other fields of physics are provided. After an introduction to undulator radiation and the low-gain FEL, the one-dimensional theory of the high-gain FEL is developed in a systematic way. Particular emphasis is put on explaining and justifying the various assumptions and approximations that are needed to obtain the differential and integral equations governing the FEL dynamics. Analytical and numerical solutions are presented and important FEL parameters are defined, such as gain length, FEL bandwidth and saturation power. One of the most important features of a high-gain FEL, the formation of microbunches, is studied at length. The increase of gain length due to beam energy spread, space charge forces, and three-dimensional effects such as betatron oscillations and optical diffraction is analyzed. The mechanism of Self-Amplified Spontaneous Emission is described theoretically and illustrated with numerous experimental results. Various methods of FEL seeding by coherent external radiation are introduced, together with experimental results. The world’s first soft X-ray FEL, the user facility FLASH at DESY, is described in some detail to give an impression of the complexity of such an accelerator-based light source. The last chapter is devoted to the new hard X-ray FELs which generate extremely intense radiation in the Angstrøm regime. The appendices contain supplementary material and more involved calculations.
Book Synopsis Theory of High Gain Free Electron Lasers Operating With-segmented Undulators by : Giuseppe Dattoli
Download or read book Theory of High Gain Free Electron Lasers Operating With-segmented Undulators written by Giuseppe Dattoli and published by . This book was released on 2004 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles of Free-Electron Lasers by : H. P. Freund
Download or read book Principles of Free-Electron Lasers written by H. P. Freund and published by Springer. This book was released on 2012-12-08 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the time that we decided to begin work on this book, several other volumes on the free-electron laser had either been published or were in press. The earliest work of which we were aware was published in 1985 by Dr T. C. Marshall of Columbia University [1]. This book dealt with the full range of research on free-electron lasers, including an overview of the extant experiments. However, the field has matured a great deal since that time and, in our judgement, the time was ripe for a more extensive work which includes the most recent advances in the field. The fundamental work in this field has largely been approached from two distinct and, unfortunately, separate viewpoints. On the one hand, free-electron lasers at sub-millimetre and longer wavelengths driven by low-energy and high-current electron beams have been pursued by the plasma physics and microwave tube communities. This work has confined itself largely to the high-gain regimes in which collective effects may play an important role. On the other hand, short-wavelength free-electron lasers in the infrared and optical regimes have been pursued by the accelerator and laser physics community. Due to the high-energy and low-current electron beams appropriate to this spectral range, these experiments have operated largely in the low-gain single-particle regimes. The most recent books published on the free-electron laser by Dr C. A.
Book Synopsis High Power Free-electron Laser Concepts and Problems by :
Download or read book High Power Free-electron Laser Concepts and Problems written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Free-electron lasers (FELs) have long been thought to offer the potential of high average power operation. That potential exists because of several unique properties of FELs, such as the removal of ''waste heat'' at the velocity of light, the ''laser medium'' (the electron beam) is impervious to damage by very high optical intensitites, and the technology of generating very high average power relativistic electron beams. In particular, if one can build a laser with a power extraction efficiency 11 which is driven by an electron beam of average Power P[sub EB], one expects a laser output power of P[sub L] = [eta] P[sub EB]. One approach to FEL devices with large values of [eta] (in excess of 10 %) is to use a ''tapered'' (or nonuniform) wiggler. This approach was followed at several laboratories during the FEL development Program for the Strategic Defense Initiative (SDI) project. In this paper, we review some concepts and technical requirements for high-power tapered-wiggler FELs driven by radio-frequency linear accelerators (rf-linacs) which were developed during the SDI project. Contributions from three quite different technologies - rf-accelerators, optics, and magnets - are needed to construct and operate an FEL oscillator. The particular requirements on these technologies for a high-power FEL were far beyond the state of the art in those areas when the SDI project started, so significant advances had to be made before a working device could be constructed. Many of those requirements were not clearly understood when the project started, but were developed during the course of the experimental and theoretical research for the project. This information can be useful in planning future high-power FEL projects.
Book Synopsis Theoretical Studies of the Free-electron Laser by : Charles Penman
Download or read book Theoretical Studies of the Free-electron Laser written by Charles Penman and published by . This book was released on 1988 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical investigaton of the operation of high-gain free-electron-lasers in the short wavelenght regime by : Dirk Nölle
Download or read book Theoretical investigaton of the operation of high-gain free-electron-lasers in the short wavelenght regime written by Dirk Nölle and published by . This book was released on 1991 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical investigation of the operation of High-Gain Free-Electron-Lasers in the short wavelength regime by : Dirk Nölle
Download or read book Theoretical investigation of the operation of High-Gain Free-Electron-Lasers in the short wavelength regime written by Dirk Nölle and published by . This book was released on 1991 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Investigation of the Operation of High-gain Free-electron-lasers in the Short Wavelenght Regime by : Dirk Nölle
Download or read book Theoretical Investigation of the Operation of High-gain Free-electron-lasers in the Short Wavelenght Regime written by Dirk Nölle and published by . This book was released on 1991 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Studies on Free Electron Lasers by : M. N. Rosenbluth
Download or read book Theoretical Studies on Free Electron Lasers written by M. N. Rosenbluth and published by . This book was released on 1982 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this investigation has been the Free Electron Laser (FEL), a device which is capable of converting the kinetic energy of a relativistic electron beam into coherent electromagnetic radiation. The investigation focused on two main topics: (1) The FEL operated as an oscillator and an amplifier using variable parameter wigglers. (2) The FEL oscillator operated in conjunction with a storage ring using gain-expanded and phase area displacement wigglers. A summary and details of progress for the period October 1, 1982 - September 30, 1983 are presented.
Book Synopsis The Physics of Free Electron Lasers by : Evgeny Saldin
Download or read book The Physics of Free Electron Lasers written by Evgeny Saldin and published by Springer. This book was released on 2010-12-09 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Free Electron Laser (FEL) will be a crucial tool for research and industrial applications. This book describes the physical fundamentals of FELs on the basis of classical mechanics, electrodynamics, and the kinetic theory of charged particle beams, and will be suitable for graduate students and scientists alike. After a short introduction, the book discusses the theory of the FEL amplifier and oscillator, diffraction effects in the amplifier, and waveguide FEL.
Book Synopsis Measurements and Detailed Analysis of Seeded High-gain Free-electron Lasers at FLASH by : Tim Plath
Download or read book Measurements and Detailed Analysis of Seeded High-gain Free-electron Lasers at FLASH written by Tim Plath and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Study of the Free Electron Laser Sideband Instability by : Tser-Yuan Brian Yang
Download or read book Theoretical Study of the Free Electron Laser Sideband Instability written by Tser-Yuan Brian Yang and published by . This book was released on 1990 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
