Free-electron lasers produce extremely brief, coherent, and bright laser-like photon pulses
that allow to image matter at atomic resolution and at timescales faster than the …

Linear accelerators delivering high brightness electron beams are essential for a number of
current and proposed accelerator applications, such as free electron lasers (FELs). In this …

OCELOT is a novel multiphysics simulation toolkit, which has been in development at
European XFEL in collaboration with NRC Kurchatov Institute and DESY since 2011. In this …

Initiating the gain process in a free-electron laser (FEL) from an external highly coherent
source of radiation is a promising way to improve the pulse properties such as temporal …

The required high peak current in free-electron lasers (FELs) is realized by longitudinal
compression of the electron bunches to sub-picosecond length. In this paper, a frequency …

The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010
and 2014, serving as a pilot plant and test bed for the development and realization of …

The successful development in the last two decades of X-ray free electron lasers (FELs) with
their revolutionary brightness performance has been tightly dependent on the parallel …

Laser driven Wake-Field Acceleration (LWFA) has proven its capability of accelerating
electron bunches (e-bunches) to up to 4 GeV energy in a single stage while reaching …

We consider the collective beam dynamics in the accelerator of the European X-ray Free
Electron Laser for electron bunches with charges of 250 and 500 pC. The dynamics has …

We consider a 3D electron bunch at the cathode, modelled via photoemission, with realistic
(asymmetric) spatial and temporal distributions for accelerator beam dynamics studies at the …