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München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Particle Sources and Radiofrequency 1

AKBP 1.5: Talk

Monday, March 18, 2019, 15:00–15:15, HS 8

Development of a 200 keV Inverted-Geometry Polarized Photo-Electron Gun for Photo-CATCH* — •Maximilian Herbert, Joachim Enders, Yuliya Fritzsche, and Vincent Wende — Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt

The institute for nuclear physics at TU Darmstadt houses a dedicated test stand for Photo-Cathode Activation, Test and Cleaning using atomic-Hydrogen (Photo-CATCH). Using GaAs photocathodes to provide pulsed and/or polarized electron beams and featuring a 60 keV inverted-insulator geometry photo-electron gun with adjacent diagnostics beamline as well as a system for photocathode activation and cleaning, it furnishes the Superconducting Darmstadt Linear Accelerator S-DALINAC with an ideal environment for photo-electron gun research and development. Currently, an upgrade of the existing inverted geometry to 200 keV is being developed for operational tests at Photo-CATCH and future use at the S-DALINAC. This contribution will present status, challenges and perspectives of the 200 keV gun design.

*Supported by DFG through GRK 2128 "AccelencE".

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