2025-07-09
11:45 |
FCC-ee cavities RF power coupler: study on the optimal cooling strategy to boost the cryomodule energy efficiency
/ Canderan, K (CERN) ; Parma, V (CERN)
The RF fundamental power coupler (FPC) in SRF accelerating systems can have a major contribution to the cryogenic power consumption. In the framework of the FCC feasibility study, the focus on the energy saving is of primary importance given the size of the machine, with 264 cavities at 400 MHz and 488 cavities at 800 MHz for the collider, and 600 cavities at 800 MHz for the booster, at the ttbar working point. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012183
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012183
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2025-07-09
11:45 |
Machine Learning Framework for Anomaly Detection and Maintenance Optimization in Large-Scale Cryogenic Systems
/ Cacace, Paolo (CERN ; Rome U.) ; Santos, Diogo R (CERN) ; Giusti, Lorenzo (CERN) ; Ferrand, Frederic (CERN) ; Junker, Steffen (CERN) ; Conan, Lionel (CERN) ; Serio, Luigi (CERN)
This work presents a machine learning framework designed for anomaly detection and prescriptive maintenance tested on the helium compression system installed at CERN. The Large Hadron Collider (LHC) features an extensive cryogenic infrastructure, essential for its operation. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012030
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012030
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2025-07-09
11:45 |
Adhesion analysis of epoxy resin impregnation systems for Nb$_{3}$Sn superconducting magnets
/ Verma, Bharti (CERN) ; Piccin, Roland (CERN) ; Tommasini, Davide (CERN) ; Santillana, Ignacio Avilles (CERN)
The mechanical properties of Nb$_{3}$Sn coils are strongly influenced by the adhesion between the impregnation resin and the coil constituents, which may impact the magnets’ performance. To improve the understanding of the parameters governing the adhesion in such superconducting magnets, a study was conducted on several impregnation systems with respect to different coil parts, notably copper, stainless steel, aluminium, and glass fibre. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012208
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012208
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2025-07-09
11:45 |
Investigation of a Helium cooling circulation loop on a 1.3 GHz cavity structure
/ Chioteli, M (CERN) ; Constantinou, H (CERN) ; Onufrena, A (CERN) ; Koettig, T (CERN)
This paper presents a novel cryogenic cooling method for Superconducting Radio Frequency (SRF) cavities, utilizing a cold helium flow passed through a brazed capillary for their cooling. Such novel and drastically reduced helium content cooling scheme can be applied to a wide variety of superconducting cavities, and it has many advantages compared to the traditional cooling method of SRF cavities in a liquid helium bath. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012047
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012047
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2025-07-09
11:43 |
Cryostats for the HL-LHC magnets: Pre-series production, assembly infrastructure and project plans
/ Ramos, Délio (CERN) ; Seller, Alisdair (CERN) ; Devred, Arnaud (CERN) ; Milanese, Attilio (CERN) ; Todesco, Ezio (CERN) ; Savary, Frederic (CERN) ; Prin, Herve (CERN) ; Struik, Michael (CERN) ; Bahmane, Oussama Id (CERN) ; Izquierdo Bermudez, Susana (CERN) et al.
The superconducting system of the High Luminosity LHC project (HL LHC) at CERN comprises a total of 38 new cold masses, prototypes and spares included, all requiring cryostats for magnet operation at 1.9 K. These cryostats shall ensure optimal thermal performance, as well as magnet alignment stability over the machine lifetime. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012117
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012117
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2025-07-09
11:43 |
Assembly process and quality control of the magnet cryostats for the HL-LHC project at CERN
/ Seller, Alisdair (CERN) ; Ramos, Délio (CERN) ; Struik, Michael (CERN) ; Savary, Frédéric (CERN)
As part of the High Luminosity Large Hadron Collider Upgrade (HL-LHC) at CERN, new focusing quadrupoles, separation and recombination dipoles, and corrector magnets will be installed on either side of the ATLAS and CMS experiments. Specific cryostat designs were developed to allow for the operation of these magnets at 1.9 K. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012122
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012122
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2025-07-09
11:43 |
Insertion thermometry experience at CERN
/ Bora, Matteo (CERN) ; Casas, Juan (CERN) ; Noly, Florian (CERN) ; Vauthier, Nicolas (CERN)
Insertion thermometry is desirable for low pressure gaseous cold helium environment due to the poor heat transfer coefficient between the fluid and the pipe wall, complicating the measurement on the insulation vacuum side. Insertion thermometry requires a capillary that, in the case of CERN equipment, has a wide variation of the overall length. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012174
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012174
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2025-07-09
11:43 |
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2025-07-09
11:43 |
Cryogenic architecture and heat loads for the High-Luminosity upgrade of the Large Hadron Collider (HL- LHC) at CERN
/ Gahier, Vanessa (CERN) ; Brodzinski, Krzysztof (CERN) ; Claudet, Serge (CERN) ; Delprat, Laurent (CERN) ; Lees, Andrew (CERN) ; Monneret, Emmanuel (CERN) ; Perin, Antonio (CERN) ; Sisti, Michele (CERN) ; Van Weelderen, Rob (CERN)
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN is a major upgrade project of the LHC accelerator, which will allow increasing the peak luminosity by at least a factor of five beyond LHC’s design value. This upgrade will include the replacement of the final focusing superconducting magnets and the implementation of superconducting radiofrequency crab cavities in the long straight sections of the interaction points 1 and 5 of LHC. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012003
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012003
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2025-07-09
11:43 |
The Cryogenic Distribution System for the High Luminosity LHC upgrade at CERN
/ Sisti, M (CERN) ; Claudet, S (CERN) ; Metselaar, J (CERN) ; Lees, A (CERN) ; Merli, F (CERN) ; Perin, A (CERN) ; Gahier, V (CERN)
The High Luminosity upgrade of the Large Hadron Collider (HL-LHC) will require the replacement of the final focusing superconducting magnets, the implementation of new superconducting links to power the magnets and the implementation of new Superconducting Radio-Frequency (SRF) crab cavities, totalling a length of about 150 m on both sides of the collision points of the ATLAS (P1) and of the CMS (P5) experiments in the LHC accelerator. To cool the new and reconfigured cryogenic devices, a new Cryogenic Distribution System will replace the existing LHC cryogenic distribution line on each side of the experiments. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012114
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012114
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