Sep 15 – 21, 2019
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Challenges and tolerances for a compact and hybrid ultrafast X-ray pulse source based on RF and THz technologies

Sep 18, 2019, 6:40 PM
SB1 (Hotel Hermitage)


Hotel Hermitage

talk WG3 - Electron beams from electromagnetic structures, including dielectric and laser-driven structures WG3 - Thz acceleration


Thomas Vinatier (DESY)


A hybrid concept for an Inverse Compton Scattering (ICS) based compact ultrafast X-ray pulse source, relying on the combination of a conventional S-band electron gun with a dielectric-loaded waveguide driven by a multicycle THz pulse (THz linac), is under investigation by the authors. The target of this hybrid concept is to generate pC-class ultrashort electron bunches (≤ 1 fs rms), at moderate energies (15 to 20 MeV) and focused to a transverse size below 10 μm rms while keeping a compact beamline (≤ 2 m). This contribution first presents the optimization of the concept through beam dynamics simulations and the simulation of the properties of the X-rays generated via ICS. The main part is then dedicated to two aspects. First, a description of the main technical requirements for the concept and the associated challenges is given. Finally, a tolerance study deals with the influence of various jitters and beamline imperfections on the achievable electron bunch properties.

Primary author


Dr Ralph Assmann (Deutsches Elektronen-Synchrotron DESY, Germany) Ulrich Dorda (DESY) Francois Lemery (DESY) Barbara Marchetti (DESY)

Presentation materials