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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Particle and Photon Sources

AKBP 1.1: Talk

Monday, March 20, 2023, 16:00–16:15, CHE/0183

Design of a New Photo and Thermionic Hybrid Mode 50 kV Pulsed Electron Gun for ELSA — •Samuel Kronenberg, Klaus Desch, Daniel Elsner, Dennis Proft, and Philipp Hänisch — Physikalisches Institut der Universität Bonn

For the Linac travelling wave S-band injector at ELSA a new electron gun is being designed, to enhance the beam parameters obtained from the old gun. Furthermore, a new single bunch injection mode is to be realized alongside the standard long pulse (multi bunch) mode, enabling single bunch operations for accelerator research and development in addition to the use for normal operation serving the experimental program. For that a dual-use design is pursued utilizing a caesium dispenser cathode both as photo- as well as thermionic cathode. First steps including the design of the gun assembly and studies about its usability as a photoemitter are conducted. A preliminary design of the gun is presented.