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HK: Fachverband Physik der Hadronen und Kerne

HK 17: Instrumentation III

HK 17.2: Vortrag

Dienstag, 17. März 2026, 16:45–17:00, PHIL A 301

GEM detectors for AMBER - Production and streaming readout — •Shania Müller^{1, 2}, Pascal Henkel¹, Max Knauseder^{1, 2}, Jakob Krauß^{1, 2}, Jonathan Kunecke^{1, 2}, Jan Paschek^{1, 2}, and Bernhard Ketzer^{1, 2} — ¹Helmholz-Institut für Strahlen- und Kernphysik, University of Bonn, Germany — ²Forschungs- und Technologiezentrum Detektorphysik

The AMBER experiment at CERN’s Super Proton Synchrotron is a facility that explores how the fundamental properties of mesons and baryons emerge from the underlying quark and gluon dynamics. In its first physics runs in 2023 and 2024, the experiment measured cross-sections for antiproton production in hadron-hadron collisions. The run in 2025 has been a preparation run for the upcoming proton electric form-factor measurement using a high-energy muon beam, showing the feasibility of the planned experimental program.

To measure the trajectories of scattered muons downstream of the traget close to the beam, a new generation of 30 × 30 cm² triple-GEM detector stations are being produced and integrated into the setup. These detectors are constructed and characterized in the laboratories at the University of Bonn. To fulfill the requirements for this physics program a new free-streaming data acquisition system was established. To match the free-streaming mode, the self-triggering VMM3a front-end chip was implemented to readout the GEM detectors.

This talk will present the construction procedure of the detectors, their quality assurance and the characterization using the new readout system. Supported by BMFTR.

Keywords: AMBER; GEM; Gaseous detector; Readout