19–24 May 2024
Music City Center
US/Central timezone

Application of a reduced phase velocity high brightness photogun for MeV ultrafast electron diffraction

WEPC68
22 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC2.T02 Electron Sources Wednesday Poster Session

Speaker

Paolo Craievich (Paul Scherrer Institut)

Description

MeV ultrafast electron diffraction has become a new frontier for the study of molecular dynamics. With the temporal resolution of MeV-UED being limited by the electron bunch length at the target, electron sources used for this technique are becoming ever more intricate in the the push for shorter bunches length. However, moving to these complex setups makes them less feasible in a small-scale setting, such as universities, where keV-UED setups have become common place. In this paper, we use a novel travelling-wave RF photogun without any additional bunch compressor to generate ultra-short electron pulses whose lengths rival that of the most intricate magnetic or ballistic compression schemes. The broadband nature of the TW device allows for unique operation schemes that combines significant acceleration and compression all within the TW photogun. Such a device, when combined with state-of-the-art synchronization systems and lasers will be demonstrated to cross the so-called ‘50-fs time-resolution barrier’ and push towards the femtosecond regime.

Funding Agency

This project has received funding from the European Union’s Horizon 2020 Research and Innovation program under Grant Agreement No. 101004730.

Region represented Europe
Paper preparation format LaTeX

Primary author

Thomas Lucas (Paul Scherrer Institute)

Co-authors

Alexander Dietrich (Paul Scherrer Institut) Alexandre Trisorio (Paul Scherrer Institut) Carl Beard (Paul Scherrer Institut) Carlo Vicario (Paul Scherrer Institut) Cezary Sydlo (Deutsches Elektronen-Synchrotron) David Alesini (Istituto Nazionale di Fisica Nucleare) Paolo Craievich (Paul Scherrer Institut) Rasmus Ischebeck (Paul Scherrer Institut) Riccardo Zennaro (Paul Scherrer Institut) Zheqiao Geng (Paul Scherrer Institut)

Presentation materials

There are no materials yet.