Yauhen Kot

Author Correction: A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator

Winfried Decking, Suren Abeghyan, P. Abramian, A. Abramsky et autres

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A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator

Winfried Decking, Suren Abeghyan, P. Abramian, A. Abramsky et autres

de, es, ru, bg, ch, fr, it, se, pl (code pays fourni par la source)

Opportunities for Two-Color Experiments in the Soft X-ray Regime at the European XFEL

Svitozar Serkez, Winfried Decking, L. Froehlich, Natalia Gerasimova et autres

X-ray pump/X-ray probe applications are made possible at X-ray Free Electron Laser (XFEL) facilities by generating two X-ray pulses with different wavelengths and controllable temporal delay. In order to enable this capability at the European XFEL, an upgrade project to equip the …

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Two Colors at the SASE3 Line of the European XFEL: Project Scope and First Measurements

Svitozar Serkez, Winfried Decking, Lars Fröhlich, Gianluca Geloni et autres

The European XFEL is a high-repetition rate facility that generates high-power SASE radiation pulses in three beamlines. A joint upgrade project, with Finnish universities, to equip the SASE3 beamline with a chicane has been recently approved to generate two SASE pulses with …

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Beam Dynamics Simulation for FLASH2 HGHG Option

Guorui Feng, Sven Ackermann, Joern Bödewadt, W. Decking et autres

Different Charges in the Same Bunch Train at the European XFEL

Yauhen Kot, T. Limberg, Igor Zagorodnov

In this paper we have investigated the possibility of the operation of different charges in the bunch train for the nominal design of the XFEL injector and for the case that it is extended by an additional laser system on the cathode. …

Investigations on the Optimum Accelerator Parameters for the Ultra-Short Bunch Operation of the Free-Electron Laser in Hamburg (FLASH)

M. Rehders, Juliane Roensch-Schulenburg, Joerg Rossbach, Yauhen Kot et autres

In order to produce the shortest possible radiation pulses using free-electron lasers like FLASH, various possibilities have been proposed during the last decade.Probably the most robust method is the generation of electron bunches that in the most extreme case are as short …

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Injector Operation with Low Charge Bunches

Yauhen Kot

The three stage bunch compression system proposed for the European XFEL will be able to achieve overall compression of about 100. This would lead to the reduction of the bunch length up to 2.5 10 -5 m for the designed bunch charge …

Simulations on Impact of the 3.9 GHz RF Section on the Multi Bunch Emittance at FLASH

Yauhen Kot

Lattice Studies for the XFEL-Injector

Yauhen Kot, V. Balandin, W. Decking, Christopher Gerth et autres

The XFEL injector building has a length of 74.3 meters and is divided by 2.5m long concrete shielding wall. The section upstream the shielding wall will have a length of 42.3m and give place for the gun, accelerating module, a possible 3 …

Weakly dissipative plasma equilibria in Kerr geometry

Klaus Elsässer, Yauhen Kot

Axisymmetric neutral plasma equilibria of electrons and ions near black holes can be constructed from solutions of ideal multifluid equations; the solutions for the ions are obtained from a modified Grad–Shafranov code for the stream function. The density and the flux functions …

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Plasmagleichgewichte in einer Kerr-Metrik

Yauhen Kot

In der Arbeit wird ein quasineutrales, ideales und schwach dissipatives Zweiflüssigkeitsplasma modelliert, das sich in unmittelbarer Umgebung eines Kerr-Lochs befindet. Es wurde festgestellt, dass ein solches Plasma sich durch vier Funktionen komplett beschreiben lässt. Ein eindeutig definiertes Problem erhält man dabei nur …