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The design, development, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the principle system for sample recognition, monitoring, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in form with a volume close to ninety m three and is operated in a 0.5 T solenoidal magnetic field parallel to its axis. In this paper we describe intimately the design issues for this detector for operation in the extreme multiplicity setting of central Pb-Pb collisions at LHC vitality. The implementation of the ensuing necessities into hardware (discipline cage, learn-out chambers, electronics), infrastructure (gasoline and cooling system, laser-calibration system), and software led to many technical improvements which are described along with a presentation of all the foremost parts of the detector, as presently realized. We additionally report on the performance achieved after completion of the primary spherical of stand-alone calibration runs and demonstrate results close to these specified in the TPC Technical Design Report.
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發表於 2025-9-18 04:56:53