Erlangen 2026 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation VIII
HK 44.3: Vortrag
Donnerstag, 19. März 2026, 16:45–17:00, PHIL A 301
Precision Assembly for the P2 Inner Tracker — •Emre Elibollar for the P2 collaboration — Institut fur Kernphysik, Johannes Gutenberg-Universitat, Johann-Joachim-Becher-Weg 45, Mainz, Germany
The P2 experiment at the new electron accelerator MESA in Mainz aims to measure the weak mixing angle in elastic electron-proton scattering at low momentum transfer Q2 with unprecedented precision. Precise assembly of silicon tracker modules is essential for reliable track reconstruction and for controlling systematic uncertainties in the determination of the momentum transfer. The tracker system measures the scattering angle of outgoing low-energy electrons. To meet these requirements, an automated assembly workflow based on a four-axis robotic system (Gluebot) has been developed and validated.
The system was adapted to detector constraints with emphasis on alignment accuracy, repeatability, and operational stability. The detector design requires a sensor placement precision better than 50 µm. Targeted hardware modifications and software improvements were implemented in the Gluebot, enabling stable automated gluing and pick-and-place operations with µm-level positioning performance.
The feasibility of automated tracker-module assembly was demonstrated using representative components. Beyond its original scope, the system is used for additional detector projects, demonstrating its robustness. The talk will present the system design, achieved performance, and its role in ongoing tracker-module production.
Keywords: Precision alignment; glue; Silicon tracker; detector assembly; HV-MAPS