effects on radiation damage on tracking

by Marco Bomben (APC & Université Paris Cité, Paris (FR))

Wednesday 4 Mar 2026, 13:30 → 14:30 Europe/London

Small Lecture Theatre (Poynting)

impacting the performance of silicon tracking detectors within LHC experiments. While adjusting sensor bias voltage and detection thresholds can mitigate these effects, it is essential to employ simulated data that accurately reproduce performance evolution alongside increasing luminosity and fluence.

    The ATLAS, CMS, and LHCb collaborations have developed and implemented algorithms to model signal loss and changes in the Lorentz angle caused by radiation damage. These algorithms are now the default for Run 3 simulated events. This talk provides a general introduction to radiation damage in LHC silicon detectors, followed by an overview of different simulation approaches, their required inputs, and a comparison of results against collision data. Notable examples of TCAD (Technology Computer-Aided Design) tools and their application in simulating radiation effects will also be discussed.

    Looking ahead to the High-Luminosity LHC (HL-LHC) phase, the significant increase in collision, track, and hit rates imposes stringent constraints on computing resources. Consequently, faster, more efficient algorithms are required. This seminar will conclude by presenting the philosophy behind these next-generation algorithms, the strategy for their implementation, and the essential ingredients for their success.