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LHC Upgrades in preparation of Run 3
/ Arduini, G (CERN) ; Baglin, V (CERN) ; Bartosik, H (CERN) ; Bottura, L (CERN) ; Bracco, C (CERN) ; Bradu, B (CERN) ; Bregliozzi, G (CERN) ; Brodzinski, K (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) et al.
The Large Hadron Collider (LHC) Long Shutdown 2(2019–2021), following LHC Run 2, was primarily dedicated to theupgrade of the LHC Injectors but it included also a significantamount of activities aimed at consolidation of the LHC machinecomponents, removal of known limitations and initial upgrades inview of the High-Luminosity LHC (HL-LHC) to favour the intensityramp-up during Run 3 (2022–2025). An overview of the majormodifications to the accelerator and its systems is followed by asummary of the results of the superconducting magnet trainingcampaign to increase the LHC operation energy beyond the maximumvalue of 6.5 TeV reached during Run 2. [...]
2024 - 138 p.
- Published in : JINST 19 (2024) P05061
Fulltext: PDF;
In : The Large Hadron Collider and The Experiments for Run 3, pp.P05061
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2.
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First considerations on the supporting structures of FCC-ee booster and collider in the arc regions
/ Carra, F (CERN) ; Baudin, L (CERN) ; Bauche, J (CERN) ; Artoos, K (CERN) ; Atieh, S (CERN) ; Bertarelli, A (CERN) ; Brunner, O (CERN) ; Capatina, O (CERN) ; Chance, A (Saclay) ; Chemli, S (CERN) et al.
In 2022, the FCC Feasibility Study management mandated aworking group to analyse the best configuration of the FCC-ee tunnelin the arc regions, in view of the construction of a mock-up of thearc half-cell. One of the main and most challenging goals of thestudy, named FCC-ee Arc Half-Cell Mock-up Project, was toperform a preliminary investigation on the principles of supportingthe Short-Straight Sections and dipoles of the half-cells, both forthe booster and for the collider machines. [...]
2024 - 7 p.
- Published in : JINST 19 (2024) T02008
Fulltext: PDF;
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3.
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PLAN - from LS2 to RUN3-LS3 and outcomes from the first RUN3-LS3 PLAN exercise
/ Dos Santos Pedrosa, Fernando (CERN) ; Borglund, Ayla (CERN) ; Daudin, Benoit (CERN) ; Vergara Fernandez, Estrella (CERN) ; Tock, Jean-Philippe (CERN) ; Foraz, Katy (CERN) ; Bernardini, Marzia (CERN) ; Lanza Herrero, Rodrigo (CERN)
The CERN-wide coordination of the programmed stops requires a tool to centralize and collect all the activities at a macroscopic scale. It includes the activities foreseen during Long Shutdowns (LS) and Year End Technical Stops (YETS).The CERN tool named PLAN centralises all the activities foreseen by the Groups, to have a global strategic view, assessing priorities across CERN. [...]
2023
- Published in : JACoW IPAC 2023 (2023) TUPM074
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPM074
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4.
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FCC-ee arc half-cell: preliminary design & integration studies, with ideas for a mock-up
/ Carra, F (CERN) ; Baudin, L (CERN) ; Bauche, J (CERN) ; Artoos, K (CERN) ; Atieh, S (CERN) ; Bertarelli, A (CERN) ; Brunner, O (CERN) ; Capatina, O (CERN) ; Chance, A (Saclay) ; Chemli, S (CERN) et al.
During 2022, a dedicated study was undertaken at CERN, together with FCC Feasibility Study collaborators, aimed at proposing a robust configuration for the FCC-ee arc half cell. The proposed configuration takes into account integration aspects of the elements in the arc cross section, both for the booster and the collider, as well as aspects related to powering, cooling and ventilation, supporting and alignment, optics, instrumentation, handling and installation. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL061
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL061
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Processes and Tools to Manage CERN Programmed Stops Applied to the Second Long Shutdown of the Accelerator Complex
/ Vergara Fernandez, Estrella (CERN) ; Ansel, Antoine (CERN) ; Barberan Marin, Maria (CERN) ; Bernardini, Marzia (CERN) ; Chemli, Samy (CERN) ; Coupard, Julie (CERN) ; Foraz, Katy (CERN) ; Hay, David (CERN) ; Jimenez, José (CERN) ; Mcfarlane, David (CERN) et al.
The preparation and follow-up of CERN accelerator complex programmed stops require clear processes and methodologies. The LHC and its Injectors were stopped in December 2018, to maintain, consolidate and upgrade the different equipment of the accelerator chain. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2048-2051
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2048-2051
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6.
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The Second Long Shutdown of the LHC and Its Injectors: Feedback from the Accelerator Coordination and Engineering Group
/ Perrot, Anne-Laure (CERN) ; Bernardini, Marzia (CERN) ; Chemli, Samy (CERN) ; Corso, Jean-Pierre (CERN) ; Coupard, Julie (CERN) ; Dos Santos Pedrosa, Fernando (CERN) ; Etheridge, John (CERN) ; Foraz, Katy (CERN) ; Grillot, Serge (CERN) ; Jimenez, José (CERN) et al.
The operation of the Large Hadron Collider (LHC) at CERN started in September 2008. Every 5 or 6 years, Long Shutdowns (LS) are programmed to execute time-intensive ordinary and extra-ordinary maintenance of the LHC and its injectors [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2052-2055
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2052-2055
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7.
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PLAN Tool
/ Baltasar Dos Santos Pedrosa, Fernando (CERN) ; Masterson, Raoul (Ministere des affaires etrangeres et europeennes (FR)) ; Tock, Jean-Philippe (CERN) ; Daudin, Benoit (CERN) ; Klem, Doreen (CERN) ; Lanza, Richard
To complete its mission, the Run3 Installation Coordination team needs a tool to centralize and collect, at a macroscopic scale, all activities to be performed in the programmed stops for Run3 and LS3, including those postponed from LS2. [...]
CERN-ACC-NOTE-2022-0040.
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2022. - 3 p.
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8.
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Run3 Installation Coordination
/ Tock, Jean-Philippe (CERN) ; Bedel, Cyrille Patrick (CERN) ; Bernardini, Marzia (CERN) ; Etheridge, John Robert (CERN) ; Fessia, Paolo (CERN) ; Lambert, Anna (CERN) ; Loertscher, Yves (CERN) ; Masterson, Raoul (Ministere des affaires etrangeres et europeennes (FR)) ; Modena, Michele (CERN) ; Roesler, Stefan (CERN) et al.
After reminding the mandate and the scope of the Run3 Installation Coordinator, the Run3 team members and their respective assignments will be present-ed [...]
CERN-ACC-NOTE-2022-0037.
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2022. - 4 p.
Full text
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9.
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Programmed Stops Coordination: from Preparation to Completion
/ Vergara Fernandez, Estrella (CERN) ; Bernardini, Marzia (CERN) ; Chemli, Samy (CERN) ; Corso, Jean-Pierre (CERN) ; Coupard, Julie (CERN) ; Etheridge, John Robert (CERN) ; Grillot, Serge (CERN) ; Muttoni, Yvon (CERN) ; Nicquevert, Bertrand (CERN) ; Perrot, Anne-Laure (CERN) et al.
The exploitation of the CERN accelerator complex requires programmed stops of the operation, to execute various activities as standard maintenances, upgrades, consolidations and projects implementations [...]
CERN-ACC-NOTE-2022-0036.
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2022. - 5 p.
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