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HK: Fachverband Physik der Hadronen und Kerne

HK 63: Instrumentation XV

HK 63.6: Vortrag

Donnerstag, 14. März 2024, 17:00–17:15, HBR 19: C 1

Results from the latest Beam Time with the PANDA Cluster-Jet Target at COSY — •Philipp Brand, Daniel Bonaventura, Hanna Eick, Jost Froning, Christian Mannweiler, Sophia Vestrick, Michael Weide, and Alfons Khoukaz for the PANDA collaboration — Institut für Kernphysik, Universität Münster, 48149 Münster, Germany

The PANDA cluster-jet target will be the Day-1 target for the PANDA experiment within the High Energy Storage Ring (HESR) at FAIR. With this device, a target thickness of more than 10¹⁵ atoms/cm² is achieved at the interaction point more than 2 m below the jet nozzle.

This target was routinely in operation at the COoler SYnchrotron (COSY) over the last years. Special emphasis of the last beam time was on the operation of an MCP system for cluster beam visualization. Therefore, the cluster beam has to be ionized which can be done either by a dedicated electron gun or by the accelerator’s ion beam. Using the ion beam has the advantage that then only the vertex region is visualized with the MCP so that this system can work as a vertex zone monitor. Currently, the MCP image intensity dependence on target density, ion beam intensity, and MCP voltages is analyzed which would allow for a rough luminosity monitoring. Furthermore, also studies on the beam target interaction using the HESR stochastic cooling devices were performed. Some results of this last COSY beam time are presented.

This project has received funding from BMBF (05P21PMFP1), GSI FuE (MSKHOU2023) and the EU’s Horizon 2020 programme (824093).

Keywords: Cluster-Jet Target; PANDA; Beam Target Interaction; Beam Monitor; Storage Rings