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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation VIII
HK 44.2: Vortrag
Donnerstag, 19. März 2026, 16:30–16:45, PHIL A 301
Systematic studies of the CBM MVD cooling system with CFD simulations — •Christopher Braun for the CBM-MVD collaboration — Goethe-Universität
The Micro Vertex Detector (MVD) is the first downstream detector of the Compressed Baryonic Matter Experiment (CBM) at the future Facility for Antiproton and Ion Research (FAIR). It consists of four planar stations, placed equidistantly at distances between 8 and 20 cm downstream of the target, and is equipped with dedicated CMOS Monolithic Active Pixel Sensors (MAPS). Its stations operate in a harsh radiation environment and within the moderate vacuum of the target chamber. Each detector plane will feature a material budget x/X0 ranging between 0.3 and 0.5 %. These strict material budget constraints and vacuum operation call for a two-stage cooling system, based on passive, conductive inside, and an active, convective cooling outside of the acceptance.
This contribution will present the cooling concept of the CBM MVD, with focus on CFD simulations of the full system, which are compared with experimental results obtained with a prototype setup operating in vacuum, and a performance comparison of different coolants (Water, Glycol-Water, and Novec-649) for the detector’s coolant temperature range between −10 ∘C and +15 ∘C.
Keywords: CBM; Vertex Detectors; Cooling; CFD