On the possibility of using a free electron laser for polarization of electrons in storage rings

Derbenev, Ya. S.; Kondratenko, A. M.; Saldin, E.L.

doi:10.1016/0029-554x(82)90233-6

Cited by 137 publications

(47 citation statements)

References 4 publications

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“…The SASE process was first described by Kondratenko and Saldin [15] , theoretically explored in the early 1980s and later by many groups [16][17][18][19][20][21][22][23] .…”

Section: Sase Felsmentioning

confidence: 99%

The free-electron laser FLASH

Schreiber

Faatz

2015

High Pow Laser Sci Eng

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FLASH at DESY, Hamburg, Germany is the first free-electron laser (FEL) operating in the extreme ultraviolet (EUV) and soft x-ray wavelength range. FLASH is a user facility providing femtosecond short pulses with an unprecedented peak and average brilliance, opening new scientific opportunities in many disciplines. The first call for user experiments has been launched in 2005. The FLASH linear accelerator is based on TESLA superconducting technology, providing several thousands of photon pulses per second to user experiments. Probing femtosecond-scale dynamics in atomic and molecular reactions using, for instance, a combination of x-ray and optical pulses in a pump and probe arrangement, as well as single-shot diffraction imaging of biological objects and molecules, are typical experiments performed at the facility. We give an overview of the FLASH facility, and describe the basic principles of the accelerator. Recently, FLASH has been extended by a second undulator beamline (FLASH2) operated in parallel to the first beamline, extending the capacity of the facility by a factor of two.

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“…The SASE process was first described by Kondratenko and Saldin [15] , theoretically explored in the early 1980s and later by many groups [16][17][18][19][20][21][22][23] .…”

Section: Sase Felsmentioning

confidence: 99%

The free-electron laser FLASH

Schreiber

Faatz

2015

High Pow Laser Sci Eng

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“…Therefore, to generate short wavelength radiation, high-gain single pass amplifiers employing long undulators are of interest. The mathema tical description of high-gain amplifiers [6][7][8][15][16][17] must take into account the variation of the radiation field. High gain results from a collective instability leading to exponential growth of the radiated power,…”

Section: Free-electron Laser: High-gain Regimementioning

confidence: 99%

“…We shall present a brief introduction to the one-dimensional theory (neglecting dependence on transverse coordinates) of the FEL in the linear regime before saturation [15][16][17]. Consider the electron beam at the undulator entrance to be monoenergetic, o γ γ = , and uniformly distributed in phase, with n 1 electrons per unit length.…”

Section: One-dimensional Theorymentioning

confidence: 99%

The Physics and Properties of Free-Electron Lasers

Krinsky¹

2002

AIP Conference Proceedings

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“…The basic models of electron-beam microbunching in a self-amplified spontaneous emission (SASE) free-electron laser (FEL) describe the density modulation in the longitudinal distribution of the micropulse at the fundamental wavelength of the FEL [1][2][3][4]. While observation of the spectral enhancement in coherent transition radiation in a SASE FEL was reported at 13 µm [5], the actual observation of the variation of the modulation and microbunching fraction with peak current along the micropulse time profile has been observed only in an infrared oscillator experiment to date [6].…”

Section: Introductionmentioning

confidence: 99%

Evidence for transverse dependencies in COTR and microbunching in a SASE FEL

Lumpkin¹,

Chae²,

Lewellen³

et al. 2003

Free Electron Lasers 2002

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Using coherent optical transition radiation (COTR) techniques, we have observed transverse dependencies, which in some aspects relate to the electron beam microbunching in a visible wavelength (540 nm) self-amplified spontaneous emission (SASE) free-electron laser (FEL). The experimental COTR observations include the zdependent e-beam sizes, the z-dependent angular distributions, and the z-dependent spectra (which show an x-dependence). A 30-40% narrowing of the observed beam size using COTR is explainable by the mechanism's dependence on the square of the number of microbunched particles. However, additional effects are needed to explain beam size reductions by factors of 2-3 at different z locations. Localized e-beam structure in the gun or induced in the bunch compression process may result in microbunching transverse dependence, and hence the observed COTR effects.

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On the possibility of using a free electron laser for polarization of electrons in storage rings

Cited by 137 publications

References 4 publications

The free-electron laser FLASH

The free-electron laser FLASH

The Physics and Properties of Free-Electron Lasers

Evidence for transverse dependencies in COTR and microbunching in a SASE FEL

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