The GEM QA protocol of the ALICE TPC upgrade project

Jens Erik Brücken, Timo Hildén

Forskningsoutput: KonferensbidragKonferenspapper

Sammanfattning

The ALICE experiment at the Large Hadron Collider at CERN is upgrading its central tracking detector, the Time Projection Chamber (TPC). The installation is foreseen during the second long shutdown of the Large Hadron Collider. The upgrade includes the complete exchange of the present MWPC readout chambers (ROC) with new ones based on Gas Electron Multiplier detectors. This is necessary due to the higher LHC luminosity and thus higher interaction rate. The new ROCs allow for continuous readout at 50 kHz compared to 500 Hz of the gated MWPC readout, while maintaining the particle identification capability of the present system.
A thorough quality assurance scheme was developed to build a strict QA protocol.
The QA consists of two stages. The first stage, the basic QA is done close to the GEM production workshop at CERN and later at the framing and assembly centers. The second stage, the advanced QA is done at dedicated QA centers. Full traceability of detector components will be maintained throughout the process. A detailed description of the protocol will be given with emphasis on the high definition optical scanning and gain measurements of individual GEM foils.
The production of the new ALICE TPC ROCs has finally started. First QA experience under production conditions and workload will be presented.
Originalspråkengelska
Antal sidor7
StatusPublicerad - 2019
MoE-publikationstypEj behörig
Evenemang5th International Conference on Micro Pattern Gas Detectors - Temple University, Philadelphia, Förenta Staterna (USA)
Varaktighet: 22 maj 201726 maj 2017
Konferensnummer: C17-05-22.6
https://phys.cst.temple.edu/mpgd2017/index.html

Konferens

Konferens5th International Conference on Micro Pattern Gas Detectors
Förkortad titelMPGD 2017
LandFörenta Staterna (USA)
OrtPhiladelphia
Period22/05/201726/05/2017
Internetadress

Vetenskapsgrenar

  • 114 Fysik

Citera det här

Brücken, J. E., & Hildén, T. (2019). The GEM QA protocol of the ALICE TPC upgrade project. Artikel presenterad vid 5th International Conference on Micro Pattern Gas Detectors, Philadelphia, Förenta Staterna (USA).
Brücken, Jens Erik ; Hildén, Timo. / The GEM QA protocol of the ALICE TPC upgrade project. Artikel presenterad vid 5th International Conference on Micro Pattern Gas Detectors, Philadelphia, Förenta Staterna (USA).7 s.
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title = "The GEM QA protocol of the ALICE TPC upgrade project",
abstract = "The ALICE experiment at the Large Hadron Collider at CERN is upgrading its central tracking detector, the Time Projection Chamber (TPC). The installation is foreseen during the second long shutdown of the Large Hadron Collider. The upgrade includes the complete exchange of the present MWPC readout chambers (ROC) with new ones based on Gas Electron Multiplier detectors. This is necessary due to the higher LHC luminosity and thus higher interaction rate. The new ROCs allow for continuous readout at 50 kHz compared to 500 Hz of the gated MWPC readout, while maintaining the particle identification capability of the present system.A thorough quality assurance scheme was developed to build a strict QA protocol.The QA consists of two stages. The first stage, the basic QA is done close to the GEM production workshop at CERN and later at the framing and assembly centers. The second stage, the advanced QA is done at dedicated QA centers. Full traceability of detector components will be maintained throughout the process. A detailed description of the protocol will be given with emphasis on the high definition optical scanning and gain measurements of individual GEM foils.The production of the new ALICE TPC ROCs has finally started. First QA experience under production conditions and workload will be presented.",
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Brücken, JE & Hildén, T 2019, 'The GEM QA protocol of the ALICE TPC upgrade project', Artikel presenterad vid 5th International Conference on Micro Pattern Gas Detectors, Philadelphia, Förenta Staterna (USA), 22/05/2017 - 26/05/2017.

The GEM QA protocol of the ALICE TPC upgrade project. / Brücken, Jens Erik; Hildén, Timo.

2019. Artikel presenterad vid 5th International Conference on Micro Pattern Gas Detectors, Philadelphia, Förenta Staterna (USA).

Forskningsoutput: KonferensbidragKonferenspapper

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T1 - The GEM QA protocol of the ALICE TPC upgrade project

AU - Brücken, Jens Erik

AU - Hildén, Timo

PY - 2019

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N2 - The ALICE experiment at the Large Hadron Collider at CERN is upgrading its central tracking detector, the Time Projection Chamber (TPC). The installation is foreseen during the second long shutdown of the Large Hadron Collider. The upgrade includes the complete exchange of the present MWPC readout chambers (ROC) with new ones based on Gas Electron Multiplier detectors. This is necessary due to the higher LHC luminosity and thus higher interaction rate. The new ROCs allow for continuous readout at 50 kHz compared to 500 Hz of the gated MWPC readout, while maintaining the particle identification capability of the present system.A thorough quality assurance scheme was developed to build a strict QA protocol.The QA consists of two stages. The first stage, the basic QA is done close to the GEM production workshop at CERN and later at the framing and assembly centers. The second stage, the advanced QA is done at dedicated QA centers. Full traceability of detector components will be maintained throughout the process. A detailed description of the protocol will be given with emphasis on the high definition optical scanning and gain measurements of individual GEM foils.The production of the new ALICE TPC ROCs has finally started. First QA experience under production conditions and workload will be presented.

AB - The ALICE experiment at the Large Hadron Collider at CERN is upgrading its central tracking detector, the Time Projection Chamber (TPC). The installation is foreseen during the second long shutdown of the Large Hadron Collider. The upgrade includes the complete exchange of the present MWPC readout chambers (ROC) with new ones based on Gas Electron Multiplier detectors. This is necessary due to the higher LHC luminosity and thus higher interaction rate. The new ROCs allow for continuous readout at 50 kHz compared to 500 Hz of the gated MWPC readout, while maintaining the particle identification capability of the present system.A thorough quality assurance scheme was developed to build a strict QA protocol.The QA consists of two stages. The first stage, the basic QA is done close to the GEM production workshop at CERN and later at the framing and assembly centers. The second stage, the advanced QA is done at dedicated QA centers. Full traceability of detector components will be maintained throughout the process. A detailed description of the protocol will be given with emphasis on the high definition optical scanning and gain measurements of individual GEM foils.The production of the new ALICE TPC ROCs has finally started. First QA experience under production conditions and workload will be presented.

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Brücken JE, Hildén T. The GEM QA protocol of the ALICE TPC upgrade project. 2019. Artikel presenterad vid 5th International Conference on Micro Pattern Gas Detectors, Philadelphia, Förenta Staterna (USA).