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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Instrumentation II

HK 9.7: Talk

Monday, March 16, 2026, 18:00–18:15, PHIL B 302

The MADHAT module - A prototype structure for the ALICE 3 Outer Tracker — •Malte Grönbeck for the ALICE Germany collaboration — Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn — Forschungs- und Technologiezentrum Detektorphysik

ALICE 3 is a novel heavy-ion experiment foreseen to be installed during the Long Shutdown 4 of the Large Hadron Collider. Its key feature will be a 60 m² silicon MAPS-based tracking detector, with the active area of the Outer Tracker spanning up to 45 m². The sensor technology will be based on the 65 nm production node of TPSCo. The material-budget target of less than 1%   X₀ per layer requires investigations into different cooling systems, electrical interconnections and the mechanical stability. Therefore a prototype sensor called MADHAT (Mechanical Assessment Design for Heat And Thermal solutions) and an associated detector module carrying 8 sensors was designed and built. These simple microchips are capable of emulating the heat dissipation, while simultaneously measuring the surface temperature with an integrated temperature probe.
This talk will discuss the MADHAT module design and its readout electronics.
Supported by BMFTR.

Keywords: ALICE 3; Outer Tracker; MAPS; MADHAT