Speaker
Markus Engart
(Technical University of Darmstadt)
Description
Photocathodes based on the III-V seminconductor GaAs are used as photo-electron sources to supply spin-polarized electron beams for accelerator applications. In order to achieve a sufficient electron yield, a thin surface layer of cesium combined with an oxidant is applied onto the cathode surface in a process called the cathode activation. It is typically done manually by an experienced operator. This contribution presents the current status in the development and testing of an adaptive algorithm for automated activation at the Photo-CATCH test stand.
Funding Agency
*Work supported by DFG (GRK 2128 „AccelencE “, project number 264883531 and Project-ID 499256822 – GRK 2891 'Nuclear Photonics')
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Author
Markus Engart
(Technical University of Darmstadt)
Co-authors
Prof.
Joachim Enders
(Technical University of Darmstadt)
Mr
Julian Schulze
(Technical University of Darmstadt)
Maximilian Herbert
(Technical University of Darmstadt)
Mr
Robin Petry
(Technical University of Darmstadt)
Mr
Vincent Wende
(Technical University of Darmstadt)