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T: Fachverband Teilchenphysik

T 76: Silicon Detectors VII

T 76.5: Vortrag

Donnerstag, 19. März 2026, 17:15–17:30, KH 01.022

Systematic studies of photon irradiated HV-CMOS MAPS towards the LHCb Mighty-Tracker — •Niclas Sommerfeld, Hannah Schmitz, Klaas Padeken, and Sebastian Neubert — HISKP Bonn

With the high luminosity upgrade to the LHC during LS3 the instantaneous luminosity at the LHCb experiment will be eventually increased by more than a factor of 6 to 1×10³⁴ cm⁻²s⁻¹ for Run 5. As a part of Upgrade II the LHCb downstream tracker (Mighty-Tracker) is foreseen to be instrumented with 10m² of HV-CMOS MAPS around the beam pipe. This is intended to meet the increased requirements in terms of granularity and radiation tolerance imposed by the higher luminosity.

As a part of the ongoing efforts to develop the HV-CMOS MAPS foreseen for the Mighty-Tracker, the impact of Total Ionizing Dose (TID) damage on key performance requirements is further investigated under experimental conditions. The results of systematic studies of in-house irradiated sensors are presented within this talk.

Keywords: Mighty-Tracker; Large scale pixel detector; CMOS; Radiation hardness; LHCb