The upgrade of the ALICE TPC with GEMs and continuous readout

Scientific paper - Original scientific paper

• Author: J. Adolfsson
• Author: ...
• Author: Mirko Planinić
• Author: ...
• Author: Antonija Utrobičić
• Author: ...
• Author: W. Witt
• Collaboration: ALICE TPC collaboration
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

The upgrade of the ALICE TPC will allow the experiment to cope with the high interaction rates foreseen for the forthcoming Run 3 and Run 4 at the CERN LHC. In this article, we describe the design of new readout chambers and front-end electronics, which are driven by the goals of the experiment. Gas Electron Multiplier (GEM) detectors arranged in stacks containing four GEMs each, and continuous readout electronics based on the SAMPA chip, an ALICE development, are replacing the previous elements. The construction of these new elements, together with their associated quality control procedures, is explained in detail. Finally, the readout chamber and front-end electronics cards replacement, together with the commissioning of the detector prior to installation in the experimental cavern, are presented. After a nine-year period of R&D, construction, and assembly, the upgrade of the TPC was completed in 2020.

• Keywords (english): CMOS readout of gaseous detectors; Gaseous imaging and tracking detectors; Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc); Time projection Chambers (TPC)
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Journal of Instrumentation
• Numbering: vol. 16, no. 03, P03022
• e-ISSN: 1748-0221
• DOI: https://doi.org/10.1088/1748-0221/16/03/P03022
• URN:NBN: urn:nbn:hr:217:596328
• Publication: 2021-03-15
• Document URL: https://iopscience.iop.org/article/10.1088/1748-0221/16/03/P03022
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2021 CERN for the benefit of the ALICE collaboration. Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received: December 16, 2020. Accepted: December 28, 2020. Published: March 15, 2021.
• Created on: 2024-09-29 11:39:19