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

Terahertz Fringe Fields Effects on the Beam Dynamics of a THz-driven Gun

Sep 18, 2019, 7:00 PM
Parking Area (Hotel Hermitage)

Parking Area

Hotel Hermitage

poster WG3 - Electron beams from electromagnetic structures, including dielectric and laser-driven structures Cheese and Wine Poster Session 2


Max Kellermeier (DESY)


The nascent technology of terahertz (THz)-based electron acceleration holds great promise for development of compact relativistic electron sources with femtosecond bunch durations suitable for applications from ultrafast electron diffraction to injectors for THz-based accelerators and light sources. These so-called “THz guns” present unique capabilities, but also unique challenges associated with the small, millimeter-scale of the driving wavelength and the metallic structures. Here we present the results of simulations used to study the effects of fringing fields on the extracted electrons. The Thz gun considered is transversely pumped by two single-cycle THz pulses and possesses an interaction length and output orifice of 0.1 mm

Primary authors

Max Kellermeier (DESY) Grygorii Vashchenko (DESY) Dr Moein Fakhari (Deutsches Elektronen Synchrotron) Nicholas Matlis (DESY (Deutches Elektronen Synchrotron)) Ulrich Dorda (DESY) Hannes Dinter (DESY) Dr Arya Fallahi (Deutsches Elektronen Synchrotron (DESY)) Ralph Assmann (DESY) Franz Kaertner (DESY, Center for Free-Electron Laser Science, and Universität Hamburg) Tobias Kroh (CFEL (DESY)) Dr Timm Rohwer (Deutsches Elektronen Synchrotron)

Presentation materials