CERN Accelerating science

CERN Document Server Pronađeno je 70 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.57 sekundi 
1.
Upgrade of the Process Control System for the Cryogenic Installation of the CERN LHC Atlas Liquid Argon Calorimeter / Fluder, Czeslaw (CERN) ; Fabre, Caroline (CERN) ; Goralczyk, Lukasz (CERN) ; Mastyna, Krzysztof (AGH-UST, Cracow) ; Pezzetti, Marco (CERN) ; Zmuda, Andrzej (CERN)
The ATLAS (LHC detector) Liquid Argon Calorimeter is classified as a critical cryogenic system due to its requirement for uninterrupted operation. The system has been in continuous nominal operation since the start-up of the LHC, operating with very high reliability and availability. [...]
2023 - 6 p. - Published in : JACoW ICALEPCS 2023 (2023) 752-757 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.752-757
2.
Unified Software Production Process for CERN Cryogenic Control Applications / Pezzetti, Marco (CERN) ; Barbe, Thomas (CERN) ; Fluder, Czeslaw (CERN) ; Kubla, Tomas (CERN) ; Rog, Sebastian (AGH-UST, Cracow) ; Tovar-Gonzalez, Antonio (CERN)
The software engineering of process control system for CERN cryogenic installations is based on an automatic code production methodology and continuous integration practice. This solution was initially developed for the LHC Accelerator applications, then adapted to LHC Detectors, test facilities and non-LHC cryogenic facilities. [...]
2023 - 5 p. - Published in : JACoW ICALEPCS 2023 (2023) THPDP065 Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.THPDP065
3.
Liquid helium level regulation improvement in the LHC electrical distribution feedboxes / Bradu, B (CERN) ; Coppier, H (CERN) ; Gery, J (CERN) ; Pezzetti, M (CERN) ; Tovar, A (CERN)
An important cryogenic equipment of the Large Hadron Collider (LHC) consists in the electrical distribution feedboxes (DFBs) which are used to power the superconducting magnets of the accelerator. These feedboxes contain the current leads achieving the electrical transition between the copper cables at ambient temperature to the Niobium-Titanium wires at cryogenic temperature, immersed in a liquid helium bath at 4.5 K. [...]
2022 - 7 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012045 Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012045
4.
Operational experience with the Proto-DUNE NP02 and NP04 large volume liquid argon cryostats and their cryogenic systems at CERN / Bremer, J (CERN) ; Chalifour, M (CERN) ; Creus-Prats, J (Fermilab) ; Fabre, C (CERN) ; Montanari, D (Fermilab) ; Pezzetti, M (CERN) ; Resnati, F (CERN) ; Nessi, M (CERN)
The far Detector of the Deep Underground Neutrino Experiment (DUNE) will be housed in several large volume (about 12.500 m$^{3}$) liquid argon cryostats. The design principle of these large cryostats, and of the cryogenic system belonging to them, are investigated through the design, construction and operation of a series of prototype installations.The Neutrino Platform 02 (NP02) and 04 (NP04) cryostats, placed at CERN, contain DUNE proto-type detectors, each of them housed in an about 600 m$^{3}$ liquid argon bath. [...]
FERMILAB-CONF-22-503-LBNF.- 2022 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012118 Fulltext: PDF; External link: Fermilab Library Server
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012118
5.
Automatic LHC accelerator warm-up and cool-down experience during the Long Shutdown 2 / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Ferlin, G (CERN) ; Pezzetti, M (CERN) ; Tovar, A (CERN)
During the so-called Long Shutdown 2 (LS2), the Large Hadron Collider (LHC) has been entirely warmed-up in 2019 and cooled-down in 2020/2021 after an important maintenance period. For the first time, these complex and delicate operations have been performed in an automatic way, using a new control logic implemented in the Process Logic Controllers (PLC). [...]
2022 - 7 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012119 Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012119
6.
Beam induced heat load instrumentation installed in LHC during the Long Shutdown 2 / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Casas-Cubillos, J (CERN) ; Delikaris, D (CERN) ; Deschamps, J B (CERN) ; Le Naour, S (CERN) ; Pezzetti, M (CERN) ; Tavian, L (CERN) ; Tovar, A (CERN) ; Sisti, M (CERN) et al.
During the second run of the Large Hadron Collider (LHC) between 2015 and 2018, significant beam induced heat loads have been observed on the beam screens circuits impacting the cryogenic system capacity, mainly due to the electron clouds generated by the beams. To validate these measurements and to obtain precise heat load assessments and comparison with preliminary calculations based on existing hardware equipment at selected locations, it was decided to add new cryogenic instrumentation around the machine. [...]
2022 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012043 Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012043
7.
An innovative approach for the design of cryogenic electrical and process control systems at CERN: the cryogenic Continuous Integration project / Barbe, T ; Pezzetti, M ; Martin, S ; Tovar-Gonzalez, A ; Fluder, C
Designing, building, commissioning, operating and maintaining multiple complex cryogenics process control systems involves many challenges. For several years, CERN has developed various solutions to help with the whole lifecycle of a cryogenic process control system. [...]
2022 - 7 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1240 (2022) , no. 1, pp. 012042
Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012042
8.
Commissioning and performance of the cryogenic system of the new test facility for large superconducting devices at CERN / Derking, J H (CERN) ; Perin, A (CERN) ; Dupont, T (CERN) ; D'Hulster, B (CERN) ; Iakovidis, K (CERN) ; Stewart, L (CERN) ; Barbe, T (CERN) ; Pezzetti, M (CERN)
CERN has built a new test facility for large and heavy superconducting devices that will be first used for testing the Super-FRS magnets of the FAIR project being built at GSI in Germany. This paper reports on the commissioning results and performance of the cryogenic system. [...]
2019 - 5 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012005 Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012005
9.

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10.
Innovative Methodology Dedicated to the CERN LHC Cryogenic Valves Based on Modern Algorithm for Fault Detection and Predictive Diagnostics / Pezzetti, Marco (CERN) ; Amodio, Alessio (CERN) ; Arpaia, Pasquale (CERN) ; Donon, Yann (CERN) ; Gargiulo, Federico (CERN) ; Iodice, Luca (CERN)
The European Organization for Nuclear Research (CERN) cryogenic infrastructure is composed of many equipment, among them there are the cryogenic valves widely used in the Large Hadron Collider (LHC) cryogenic facility. At present time, diagnostic solutions that can be integrated into the process control systems, capable to identify leak failures in valves bellows, are not available. [...]
2022 - 6 p. - Published in : JACoW ICALEPCS2021 (2022) 959-964 Fulltext: PDF;
In : 18th International Conference on Accelerator and Large Experimental Physics Control Systems, Online, 18 - 22 Oct 2021, pp.959-964

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