A1 Journal article (refereed)
The upgrade of the ALICE TPC with GEMs and continuous readout (2021)

ALICE TPC collaboration. (2021). The upgrade of the ALICE TPC with GEMs and continuous readout. Journal of Instrumentation, 16(3), Article P03022. https://doi.org/10.1088/1748-0221/16/03/P03022

JYU authors or editors

Publication details

All authors or editors: ALICE TPC collaboration

Journal or series: Journal of Instrumentation

eISSN: 1748-0221

Publication year: 2021

Volume: 16

Issue number: 3

Article number: P03022

Publisher: Institute of Physics Publishing

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1088/1748-0221/16/03/P03022

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/75104

Publication is parallel published: https://arxiv.org/abs/2012.09518

Abstract

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: particle physics; research equipment

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 1