Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Poster

HK 48.47: Poster

Wednesday, March 25, 2015, 17:00–19:00, C/Foyer

Design and Construction of the Cluster-Jet Target for PANDA — •Ann-Katrin Hergemöller, Daniel Bonaventura, Silke Grieser, Benjamin Hetz, Fabian Hordt, Esperanza Köhler, Alexander Täschner, and Alfons Khoukaz — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany

Cluster-jet targets are highly suited as internal targets for storage ring experiments. Hence, the first target to be operated at the PANDA experiment at the future accelerator center FAIR will be a cluster-jet target. In such a target the cluster beam itself is formed due to the expansion of pre-cooled gases within a Laval nozzle. Afterwards an orifice, the skimmer, separates the cluster beam from the residual gas and a second orifice, the collimator, defines its final size and shape. A prototype for the cluster-jet target for PANDA has already been built up in full PANDA geometry at the University of Münster and operates successfully for years. In combination with a nozzle tilting system allowing for an adjustment of the nozzle system relative to the experimental setup, the prototype provides a target thickness of more than 2× 10¹⁵ atoms/cm². Based on the results of the performance of this prototype, the final cluster-jet target source was designed and constructed in Münster as well. In this presentation an overview of the cluster-jet target design, various special features and first performance results will be presented and discussed.
Supported by EU (FP7), BMBF, and GSI F+E.