Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 21: Instrumentation IV

HK 21.3: Vortrag

Dienstag, 31. März 2020, 17:45–18:00, J-HS D

PANDA Cluster-Jet Target - Beam Interaction Studies at COSY — •B. Hetz, P. Brand, D. Klostermann, and A. Khoukaz for the PANDA collaboration — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany

The internal, windowless PANDA cluster-jet target provides a target thickness of more than 2 × 1015 atoms/cm2 in a distance of more than 2 m from its nozzle and will be the phase one target for the upcoming PANDA experiment at the antiproton storage ring HESR at GSI/FAIR. Despite the ongoing construction of the HESR, the PANDA cluster-jet target already showed its excellent performance not only during its routinely operation at the University of Münster laboratories, but also in several beam times at the COSY accelerator in Jülich. During these beam times detailed studies concerning the proton beam-target interaction, beam energy loss, beam heating, Schottky measurements, and studies of physical data quality using the WASA forward detection system have been performed. Furthermore, studies concerning the beam life time and beam qualities in conjunction with the stochastic cooling system of HESR, which is installed at COSY for test operation, in presence of the PANDA cluster-jet target were started. Both systems showed an excellent performance concerning COSY beam quality and target thickness and stability. Further beam times at COSY at even higher target thicknesses are planed for 2020. Obtained data and the upcoming experimental program of the PANDA cluster target at COSY will be presented. This project has received funding from BMBF (05P19PMFP1) and GSI F&E.

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