Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Instrumentation XII

HK 48.4: Talk

Wednesday, March 30, 2022, 16:45–17:00, HK-H4

Electron scattering in argon at the MAGIX windowless gas jet target — •Maximilian Littich for the MAGIX collaboration — Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Deutschland

MAGIX is a fixed target electron scattering experiment at the upcoming MESA accelerator. It will be operated in the energy recovery mode of the accelerator which allows to reach beam currents of at least 1 mA. This operation mode requires a thin target for which MAGIX will use an internal, windowless gas jet target. This cryogenic supersonic gas jet target will be able to run with different gases, e.g. hydrogen, deuterium, helium, oxygen, argon or xenon.

The MAGIX target is already existing and can be tested in the laboratory. At the existing A1 multi-spectrometer facility at the electron accelerator MAMI, we were able to operate the target with argon as the target gas and beam energies of 700 MeV and 240 MeV.

This talk will present the experimental setup used in the A1 facility and give a summary of the measurements performed. Finally an overview of the target performance and the current state of the analysis is given.