The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

By J. Alme, Y. Andres, H. Appelshäuser, S. Bablok, N. Bialas, R. Bolgen, U. Bonnes, R. Bramm, P. Braun-Munzinger, R. Campagnolo and 66 more. 2010

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The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in shape with a volume close to 90 m(3) and is operated in a 0.5T solenoidal magnetic field parallel to its axis. In this paper we describe in detail the design considerations for this detector for operation in the extreme multiplicity environment of central Pb-Pb collisions at LHC energy. The implementation of the resulting requirements into hardware (field cage, read-out chambers, electronics), infrastructure (gas and cooling system, laser-calibration system), and software led to many technical innovations which are described along with a presentation of all the major components of the detector, as currently realized. We also report on the performance achieved after completion of the first round of stand-alone calibration runs and demonstrate results close to those specified in the TPC Technical Design Report. (C) 2010 CERN for the benefit of the ALICE collaboration. Published by Elsevier B.V. All rights reserved. (Less)

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b7c28b752d470cf375f653d48227b97fe9543a22

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In Nuclear and High Energy Physics

Citations in the corpus

3ΛH and -3Λ-H production in Pb-Pb collisions at √sNN=2.76 TeV (2015, background): “The same pseudorapidity range is covered by the TPC [21], which is the main tracking detector.”
Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider (2015, neutral): “For this analysis, the data collected in the year 2010 are used.”
Suppression of high transverse momentum D mesons in central Pb-Pb collisions at root s(NN)=2.76 TeV (2012, background): “In order to reduce the combinatorics, these tracks were selected requiring at least 3 associated ITS hits (4 in the 0–20% centrality class), in addition to the same TPC quality selection as that used for the D 0 and D + decay tracks.”
Volume I. Introduction to DUNE (2020, neutral): “[112].”
Direct photon production in Pb-Pb collisions at $\sqrt{s_\rm{NN}}$ = 2.76 TeV (2015, methodology): “The positively and negatively charged daughter tracks are required to contain reconstructed clusters in the TPC.”
Antinuclei in heavy-ion collisions (2018, background): “two-track separation, particle identification, and vertex determination [105].”
Measurement of charm production at central rapidity in proton-proton collisions at √s = 7 TeV (2011, neutral): “%) at 1 GeV/c for TPC+ITS (ITS-only) tracks.”
Multiplicity dependence of light-flavor hadron production in pp collisions at √s = 7 TeV (2019, methodology): “The ITS, used as a standalone tracker, enables the reconstruction and identification of low momentum particles down to 100 MeV/c that do not reach the TPC.”