“One more centimetre,” said the chief technician, while operating the hydraulic jack system on 14 August. The 5-m-diameter, 5-m-long cylindrical detector gently slid into the parking position, 56 metres below the ground in the ALICE cavern at LHC Point 2, where it will stand for some time. This operation culminates the many-years-long upgrade of ALICE’s Time Projection Chamber (TPC), the large tracking device of the LHC’s heavy-ion specialist.
More details: https://home.cern/news/news/experiments/alice-tpc-upgraded