17–22 May 2026
C.I.D
Europe/Zurich timezone

Design, realisation, and high-power operation of the first Travelling-wave Photo-emission Electron Gun

THP2141
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.T02: Photon sources: Electron Sources Poster session

Speaker

Thomas Lucas (Paul Scherrer Institute)

Description

A novel travelling-wave RF photogun driven by ultra-short RF pulses has been successfully tested, stably reaching cathode fields over 160 MV/m. This performance surpasses current S-band photoguns and represents a significant step toward increasing the brightness of SwissFEL. Installed at the C-band test stand at PSI, the system demonstrates stable and robust high-power operation. We present an overview of the RF design, its unique tuning-free implementation, and high-power performance, highlighting how travelling-wave gun technology opens new opportunities for advanced electron sources.

Funding Agency

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

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Author

Thomas Lucas (Paul Scherrer Institute)

Co-authors

Ms Alejandra Ocampo (Paul Scherrer Institute) Mr Carl Beard (Paul Scherrer Institute) Hans-Heinrich Braun (Paul Scherrer Institute) Dr Marco Pedrozzi (Paul Scherrer Institute) Ms Mariia Zykova (Paul Scherrer Institute) Mr Mark Dällenbach (Paul Scherrer Institute) Mike Seidel (Paul Scherrer Institute) Natalia Kirchgeorg (Paul Scherrer Institute) Paolo Craievich (Paul Scherrer Institute) Reto Fortunati (Paul Scherrer Institute) Riccardo Zennaro (Paul Scherrer Institute)

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