This paper describes the upgrade of the large Time Projection Chamber (TPC) of the ALICE
detector at the CERN LHC. The TPC upgrade is an essential pillar of the ALICE upgrade
strategy for operation during the proton and heavy-ion beam campaigns at the LHC in Run 3
and Run 4, from 2022 to 2030 [1]. The chief goal of the ALICE upgrade is to exploit the
increased Pb–Pb luminosity delivered by the LHC, which corresponds to a minimum-bias
interaction rate of up to 50 kHz. This requirement, driven by the focus of the future ALICE …