Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 38: Gasgefüllte Detektoren II
T 38.9: Vortrag
Dienstag, 20. März 2018, 18:30–18:45, Z6 - SR 2.002
Cooling of the VMM3 readout ASIC — Michael Lupberger1, Hans Muller1, Eraldo Oliveri1, Leszek Ropelewski1, and •Lucian Scharenberg2 — 1CERN, Geneva, Switzerland — 2Physikalisches Institut, University of Bonn, Bonn, Germany
During the next long shutdown of the LHC an upgrade of the Muon system of the ATLAS detector is planned. Within this “New Small Wheel Upgrade” the VMM is developed as new front-end readout ASIC.
Due to its high rate capabilities and with its integrated digitisers, zero suppression, and programmable gain and shaping times the VMM is also interesting for other applications. In the gaseous detector community represented by the RD51 collaboration, the VMM is highly requested for becoming the next standard frond-end chip for their vastly flexible Scalable Readout System (SRS). Therefore the Gas Detector Development Group (GDD) at CERN, in cooperation with the European Spallation Source (ESS), implements the VMM into the SRS.
With a power consumption of about two Watts a lot of heat is transmitted to the carrier boards and detector frames, which could also affect the detection performance. Therefore the performance of the VMM depending on the temperature was measured with a dedicated constructed test set-up, which included temperature control and monitoring. With the results obtained it was possible to decide, if a passive cooling is sufficient or if an active cooling solution is required.
In this talk the functionality of the VMM and its implementation into the SRS, the test set-up and the results of the “VMM cooling project” are presented.