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DOE OSTI · 2571197

ALICE-USA Barrel Tracking Upgrade (Project Final Report)

Read, Kenneth [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)] (ORCID:0000000233587667)·Cormier, Thomas [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Alt, Torsten [Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt (Germany)]·Anderssen, Eric [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Appelshäuser, Harald [Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt (Germany)]·Bellwied, Rene [Univ. of Houston, TX (United States)]·Bregant, Marco [Univ. of Sao Paulo (Brazil)]·Britton, Charles [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Clonts, Lloyd [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Cunningham, John [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Ezell, N. Dianne [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Garcia-Solis, Edmundo [Chicago State Univ., IL (United States)]·Greiner, Leo [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Harris, John [Yale Univ., New Haven, CT (United States)]·Herrera, H. D. Hernandez [Univ. of Sao Paulo (Brazil)]·Jacobs, Peter [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Klay, Jennifer [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)]·Lippmann, Christian [Darmstadt Univ. of Technology (Germany)]·Llope, William [Wayne State Univ., Detroit, MI (United States)]·Majka, Richard [Yale Univ., New Haven, CT (United States)]·Markert, Christina [Univ. of Texas, Austin, TX (United States)]·Munhoz, Marcelo [Univ. of Sao Paulo (Brazil)]·Nattrass, Christine [Univ. of Tennessee, Knoxville, TN (United States)]·Oskarsson, Anders [Lund Univ. (Sweden)]·Pinsky, Lawrence [Univ. of Houston, TX (United States)]·Ploskon, Mateusz [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Porter, Jefferson [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Pruneau, Claude [Wayne State Univ., Detroit, MI (United States)]·Putschke, Joern [Wayne State Univ., Detroit, MI (United States)]·Rasson, Joseph [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Rusu, Alexandru [Univ. of Tennessee, Knoxville, TN (United States)]·Schambach, Joachim [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)]·Seger, Janet [Creighton Univ., Omaha, NE (United States)]·Silvermyr, David [Lund Univ. (Sweden)]·Smirnov, Nicolai [Yale Univ., New Haven, CT (United States)]·Sorensen, Soren [Univ. of Tennessee, Knoxville, TN (United States)]·Timmins, Anthony [Univ. of Houston, TX (United States)]·Velure, Arild [Univ. of Bergen (Norway)]·Voloshin, Sergei [Wayne State Univ., Detroit, MI (United States)]
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Abstract

The ALICE-USA Barrel Tracking Upgrade (BTU) project began in 2015 to participate in a major upgrade of the Time Projection Chamber (TPC) and the Inner Tracking System (ITS) of the ALICE Experiment at CERN in Geneva, Switzerland. This upgrade increased the maximum readout rate of the ALICE detector to accommodate the increased heavy ion interaction rates following Long Shutdown 2 of the Large Hadron Collider, and greatly improved the vertexing performance of the detector. The original scope was completed and reviewed in November 2019. The BTU project document BTU.19.v1 "ALICE Barrel Tracking Upgrade Project Closeout / Transition to Operations (2019)" from November 2019 describes the status in detail and is attached as Appendix 1 below. At that point, all delivery milestones had been met on time, all Key Performance Parameters (KPPs) of the project had been satisfied, and the project was under budget. Several subsequent No Cost Extensions (NCEs) supported integration and pre-commissioning of the BTU project deliverables at CERN, as well as study and assessment of performance with Pb-Pb collisions at 50 kHz. The BTU project was successfully completed on 30 September 2024.

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Read, Kenneth [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)] (ORCID:0000000233587667), Cormier, Thomas [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Alt, Torsten [Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt (Germany)], Anderssen, Eric [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Appelshäuser, Harald [Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt (Germany)], Bellwied, Rene [Univ. of Houston, TX (United States)], Bregant, Marco [Univ. of Sao Paulo (Brazil)], Britton, Charles [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Clonts, Lloyd [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Cunningham, John [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Ezell, N. Dianne [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Garcia-Solis, Edmundo [Chicago State Univ., IL (United States)], Greiner, Leo [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Harris, John [Yale Univ., New Haven, CT (United States)], Herrera, H. D. Hernandez [Univ. of Sao Paulo (Brazil)], Jacobs, Peter [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Klay, Jennifer [California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)], Lippmann, Christian [Darmstadt Univ. of Technology (Germany)], Llope, William [Wayne State Univ., Detroit, MI (United States)], Majka, Richard [Yale Univ., New Haven, CT (United States)], Markert, Christina [Univ. of Texas, Austin, TX (United States)], Munhoz, Marcelo [Univ. of Sao Paulo (Brazil)], Nattrass, Christine [Univ. of Tennessee, Knoxville, TN (United States)], Oskarsson, Anders [Lund Univ. (Sweden)], Pinsky, Lawrence [Univ. of Houston, TX (United States)], Ploskon, Mateusz [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Porter, Jefferson [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Pruneau, Claude [Wayne State Univ., Detroit, MI (United States)], Putschke, Joern [Wayne State Univ., Detroit, MI (United States)], Rasson, Joseph [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Rusu, Alexandru [Univ. of Tennessee, Knoxville, TN (United States)], Schambach, Joachim [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)], Seger, Janet [Creighton Univ., Omaha, NE (United States)], Silvermyr, David [Lund Univ. (Sweden)], Smirnov, Nicolai [Yale Univ., New Haven, CT (United States)], Sorensen, Soren [Univ. of Tennessee, Knoxville, TN (United States)], Timmins, Anthony [Univ. of Houston, TX (United States)], Velure, Arild [Univ. of Bergen (Norway)], Voloshin, Sergei [Wayne State Univ., Detroit, MI (United States)]. 2025-07-14. ALICE-USA Barrel Tracking Upgrade (Project Final Report). https://doi.org/10.2172/2571197

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