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T: Fachverband Teilchenphysik

T 57: Silicon strip detectors

T 57.3: Vortrag

Mittwoch, 1. April 2020, 17:00–17:15, H-HS XVII

Assembly of functional 2S-modules for the Phase-2 Upgrade of the CMS-Tracker — Christian Dziwok², Lutz Feld¹, Katja Klein¹, Oliver Pooth², •Nicolas Röwert¹, Tim Ziemons², and Michael Wlochal¹ — ¹I. Physikalisches Institut B, RWTH Aachen University — ²III. Physikalisches Institut B, RWTH Aachen University

In the course of the Long Shutdown 3 the LHC will be upgraded to the High Luminosity LHC (CERN) with a planned increased instantaneous luminosity of 5· 10³⁴ cm⁻²s⁻¹. For this purpose the current strip tracker of the CMS experiment will be replaced by innovative modules that are equipped with two vertically stacked silicon sensors each. In this sensor sandwich a measurable difference in the hit position is generated as the 3.8 T magnetic field inside the detector bends the particle tracks. This enables the selection of high transverse momentum tracks for the L1 trigger on a module basis.
The RWTH Aachen University as one of the assembly centers is responsible for manufacturing around 1000 of the so called 2S modules. A special assembly process is required to meet the high precision demands with simple-to-use tools to facilitate mass production. This talk presents the current progress and selected challenges of the procedure that appeared during the assembly of first functional modules.