SMuK 2023 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 4: Plasmas and Lasers
AKBP 4.4: Gruppenbericht
Dienstag, 21. März 2023, 18:00–18:30, CHE/0183
Status Of Plasma Diagnostics On The Prototype Plasma Lens For Optical Matching At The ILC e+ Source — •Niclas Hamann1, Gregor Loisch2, Manuel Formela1, Kai Ludwig2, Jens Osterhoff2, and Gudrid Moortgat-Pick1,2 — 1Uni Hamburg — 2DESY Hamburg
In recent years, high-gradient, symmetric focusing with active plasma lenses has regained significant interest due to its potential advantages in compactness and beam dynamics compared to conventional focusing elements. A promising application could be optical matching of highly divergent positrons from the undulator-based ILC positron source into the downstream accelerating structures to increase the positron yield. In a collaboration between University Hamburg and DESY Hamburg a downscaled prototype for this application has been developed. Here, we present first plasma diagnostics results, such as discharge current stability, electron density distribution and reproducibility. Additionally, future plans for measuring the magnetic field distribution and a possible fullscale prototype will be discussed.