SMuK 2021 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 18: Instrumentation VI

HK 18.7: Talk

Wednesday, September 1, 2021, 18:15–18:30, H2

Design of a cryopump for PANDA at FAIR — •Christian Mannweiler, Benjamin Hetz, Daniel Bonaventura, Jeremy Runge, Philipp Brand, Sophia Vestrick, and Alfons Khoukaz for the PANDA collaboration — Westfälische Wilhelms Universität, Münster, Deutschland

The PANDA experiment at the future HESR accelerator at FAIR will explore open questions about the strong interaction, the existence of exotic particles as well as other topics by utilising anti-proton-proton collisions. For these studies, optimal vacuum conditions are crucial for event reconstruction, background suppression as well as for antiproton beam lifetime.

To this end, a custom designed cryopump is in development for the antiproton beam line of the PANDA experiment. In a cryopump, activated charcoal is cooled down to cryogenic temperatures of well below 20K. At these temperatures, even hydrogen molecules are adsorbed, creating a highly efficient pumping mechanism.

Several different cryopump geometries were studied with respect to their impact on the vacuum situation at PANDA and the attainable minimum temperatures using the software packages MOLFLOW+ and Autodesk CFD, respectively. Additionally, experimental studies were performed with regard to the capacity and pumping speed of such a cryopump. The results obtained through these studies will be presented and discussed.

This project has received funding from BMBF (05P19PMFP1) and GSI (FuE) - MSKHOU2023