Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 5: Silicon Detectors I (ATLAS + CMS)

T 5.2: Vortrag

Montag, 31. März 2025, 17:00–17:15, VG 0.111

Thermal cycling in Aachen and grading procedures for 2S modules for the CMS Phase-2 Tracker Upgrade — •Max Beckers², Lutz Feld¹, Nina Höflich², Katja Klein¹, Martin Lipinski¹, Alexander Pauls¹, Oliver Pooth², Nicolas Röwert¹, Vanessa Oppenländer¹, and Lennart Wilde² — ¹I. Physikalisches Institut B, RWTH Aachen University — ²III. Physikalisches Institut B, RWTH Aachen University

For the CMS Phase-2 Outer Tracker upgrade, new silicon strip detector modules consisting of two silicon strip sensors, so-called 2S modules, are developed and produced. This process is distributed along multiple assembly centers worldwide.

RWTH Aachen University will build around 1000 2S modules. The assembled modules are then shipped to DESY, where they are thermally cycled in the "Burn-in" setup. In addition, a multi module cold box is available in Aachen to perform thermal cycles for up to 4 modules.

The POTATO software is the centrally developped software to validate the test results and apply the grading procedures. The gradings are based on different electrical and readout parameters of the module and then stored in the central database.

This talk presents the cold box setup at Aachen together with cyclings performed on preproduction 2S modules. In addition to the cycling results, the grading procedures are explained, and the POTATO software is presented.