Mainz 2022 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 47: Instrumentation XI
HK 47.2: Vortrag
Mittwoch, 30. März 2022, 16:15–16:30, HK-H3
Mechanics, integration, and assembly of the Silicon Tracking System of CBM — •Maksym Teklishyn1,2, Patrick Dahm1, Ulrich Frankenfeld1, Johann Heuser1, Piotr Koczoń1, Anton Lymanets1, Jens Thaufelder1, and Oleg Vasyliev1 for the CBM collaboration — 1GSI, Darmstadt — 2KINR, Kyiv
The Silicon Tracking System is the main tracking detector of the future CBM experiment. Its design fulfills competing requirements of low material budget, high granularity, and free-streaming operation of the detector modules.
The sensitive volume of the detector is formed by 8 tracking layers comprising 106 vertical ladders — highly integrated light-weight structures with a particular set of modules mounted on top. Each of the 876 detector modules consists of a rectangular double-sided silicon micro-strip sensor interconnected with the front-end electronics outside the physics aperture through a set of 32 ultra-thin analogue read-out micro cables of up to 500 mm length.
The detector is to be be integrated inside a constrained volume of about 3 m3 in the aperture of 1 Tm dipole magnet together with its multiple services: high- and low-voltage lines, read-out optical fibres, cooling lines for dry gas and NOVEC liquid at −40oC, DCS links and sensors.
A set of dedicated testing routines is foreseen at each step of the system assembly to ensure its adequate performance. The design choices together with the assembly and testing sequences are being validated with various prototypes.