Köln 2025 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 51: Instrumentation XI

HK 51.5: Talk

Thursday, March 13, 2025, 17:00–17:15, SR Exp1A Chemie

Ladder production and characterization of the Silicon Tracking System for the CBM experiment — •Lady Maryann Collazo Sánchez for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany

The Silicon Tracking System (STS) for the CBM experiment is designed to handle a 10 MHz interaction rate. A specialized integration approach, where the readout electronics are located outside the sensitive volume, minimizes the material budget to 2 - 8% X₀ while ensuring high granularity, precision, and timing accuracy. Each detector module features a double-sided silicon strip sensor connected to two Front-End Boards (FEBs) with eight custom-designed STS-XYTER ASICs via microcables.

After assembly, rigorous quality control procedures are performed, including time and amplitude calibration of all module ASICs and thermal stress tests to ensure reliable operation and precise data analysis. After testing, the modules are attached to low-mass carbon fiber ladders, each with up to 10 modules. The three first-of-series ladders have undergone further evaluation to confirm consistent functionality, including IV measurements, functional tests, simultaneous noise (ENC) characterization, long-run stability, and radioactive source irradiation measurements.

This study presents the current status of module and ladder testing results during the STS detector’s series production. It offers key insights into the detector’s development and performance, with detailed studies on noise levels and signal response.

Keywords: CBM; STS; characterization; ladder; production