25–30 Aug 2024
Hilton Chicago
America/Chicago timezone

Status of the L-band gun development at PITZ

TUPB004
27 Aug 2024, 16:00
2h
Boulevard (Hilton Chicago)

Boulevard

Hilton Chicago

720 South Michigan Ave Chicago, IL 60605 USA
Poster Presentation MC1.2 Electron and ion sources, guns, photo injectors, charge breeders Tuesday Poster Session

Speaker

Lucas Schaper (Deutsches Elektronen-Synchrotron)

Description

Gun5, the new generation of high-gradient normal conducting 1.3 GHz RF guns for linac driven free-electron lasers like FLASH and European XFEL is under development at the Photo Injector Test facility at DESY in Zeuthen (PITZ). Its improved cell geometry and cooling concept allow for RF pulse durations of up to 1 ms at 10 Hz repetition rate, at gradients of ~60 MV/m at the cathode. Gun5 is also equipped with an RF probe for measurements of the RF field inside the gun.
The first gun of this type, Gun5.1, is in operation at PITZ since April 2022. Gun5.2 will be commissioned at the FALCO conditioning facility at DESY in Hamburg, starting in June 2024. This gun is equipped with a balanced (symmetric) RF waveguide feed to the coaxial power coupler to prevent a coupler kick and thus improve the beam quality delivered by the electron source.
Further guns are currently in the manufacturing process. In parallel, studies towards a more reliable cathode spring design are ongoing, in order to overcome observed issues during the high duty cycle operation of Gun5.1. This article will give an overview on all those developments.

Primary author

Anne Oppelt (Deutsches Elektronen-Synchrotron DESY at Zeuthen)

Co-authors

Andreas Hoffmann (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Christopher Richard (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Cornelius Martens (Deutsches Elektronen-Synchrotron) Dr Dmytro Dmytriiev (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Dmitry Bazyl (Deutsches Elektronen-Synchrotron) Felix Riemer (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Frank Brinker (Deutsches Elektronen-Synchrotron) Frank Stephan (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Frieder Mueller (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Grygorii Vashchenko (Deutsches Elektronen-Synchrotron) James Good (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Lutz Jachmann (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Matthias Gross (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Mikhail Krasilnikov (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Namra Aftab (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Prach Boonpornprasert (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Sebastian Philipp (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Sumaira Zeeshan (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Winfried Koehler (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Xiangkun Li (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Xiao-Yang Zhang (Tsinghua University in Beijing) Zahra Lotfi (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Davit Kalantaryan (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Lucas Schaper (Deutsches Elektronen-Synchrotron) Dr Zohrab Amirkhanyan (Deutsches Elektronen-Synchrotron DESY at Zeuthen) Anna Grebinyk (Technische Hochschule Wildau)

Presentation materials

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