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HK: Fachverband Physik der Hadronen und Kerne

HK 36: Instrumentation VII

HK 36.4: Talk

Thursday, March 19, 2026, 14:45–15:00, PHIL B 302

The Assembly and Integration of a Half-unit of the Silicon Tracking System (STS) Detector — •Gnana Sindhu Subramanya for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany

The Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) investigates strongly interacting matter at high net-baryon densities. Its Silicon Tracking System (STS) provides precise tracking of charged particles in heavy-ion collisions, where tracking efficiency and vertex resolution are crucial for rare probes such as open charm and di-leptons, directly linking detector performance to CBM's physics goals.

This presentation describes the STS half-unit and the development and verification of a reliable assembly and integration protocol. Prototype components were used to simulate mechanical assembly and ensure safe handling before working with sensor modules and electronics. The protocol defines the placement of mechanical and electronic components, including ladders with Front-End Board (FEB) boxes housing front-end electronics (FEEs). Cable routing and power connections between FEBs and the readout chain were verified. Mechanical constraints were checked to prevent interference during module assembly and integration into the full STS.

Keywords: CBM experiment; Silicon Tracking System (STS); Detector assembly and integration; Cable routing and Verification; Mechanical integration protocol