K. Wittenburg

TL;DR: In this article, the authors dealt with TTF/FLASH in the XFEL context, general layout of the X-FEL facility, the X FEL accelerator, undulators for SAES and spontaneous emission, infrastructure and auxiliary systems, commissioning and operation, project management and organization, cost and time schedule.

TL;DR: In this paper, the first successful operation of an FEL at a wavelength of 32 nm, with ultra-short pulses (25 fs FWHM), a peak power at the Gigawatt level, and a high degree of transverse and longitudinal coherence.

TL;DR: The European XFEL as discussed by the authors is a hard X-ray free-electron laser (FEL) based on a highelectron-energy superconducting linear accelerator, which allows for the acceleration of many electron bunches within one radio-frequency pulse of the accelerating voltage and, in turn, for the generation of a large number of hard Xray pulses.

TL;DR: The generation of ultrashort radiation pulses became possible due to specific tailoring of the bunch charge distribution and a complete characterization of the linear and nonlinear modes of the SASE FEL operation was performed.

TL;DR: In this article, the authors present experimental evidence that the free-electron laser at the TESLA Test Facility has reached the maximum power gain of 107 in the vacuum ultraviolet (VUV) region at wavelengths between 80 and 120 nm.