SMuK 2023 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation XII
HK 44.5: Talk
Wednesday, March 22, 2023, 18:45–19:00, SCH/A251
Light-weight but dense: mechanics and integration of Silicon Tracking System of the CBM experiment — •Maksym Teklishyn1, 2 and Oleg Vasylyev1 for the CBM collaboration — 1GSI Helmholtzzentrum für Schwerionenforschung — 2Kyiv Institute for Nuclear Research
Silicon Tracking System (STS) is a core tracking detector of the future heavy-ion CBM experiment at FAIR. Requirements to cope with unprecedentedly high beam-target interaction rate (up to 10 MHz), multiple low-momentum reaction products (up to 700 charge particles per central collision) challenge the detector technologies.
STS features fast light-weight detector modules of various form factors. They are made of the 300 µ m thick 2 × 1024 channel double-sided double-metal silicon sensors connected to the dedicated read-out electronics by 32 thin aluminium-polyimide micro-cables of up to 500 mm length. The STS assembly features highly integrated unique components. The basic blocks of STS are 876 detector modules in 199 unique configurations. They are arranged on the light-weight carbon-fibre mechanical support structures forming ladders of 8 or 10 modules each. There are 106 ladders in 38 ladder types; they form 8 tracking layers on 18 aluminium supports. They also accommodate powering and back-end read-out electronics, and liquid cooling.
Recently, STS team altered the detector mechanical design: STS may be split in upstream and downstream parts with 3 and 5 tracking layers, respectively. This introduces flexibility for running scenarios (2−11 AGeV for Au ions) and facilitates upgrade.