CERN Accelerating science

Projects, Upgrade and Consolidation Projects

Ostatnio dodane:
2024-02-14
15:04
Design and implementation of a new Controller for CERN’s sub-ppm stable Current source / Nappi, Valerio
This work describes the design and development of the controller of the CERN DCTT Calibrator (CDC), a critical component in the power converter controls system in CERN’s facilities [...]
CERN-THESIS-2023-335 - 134 p.


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2024-01-30
14:32
Advanced Loss Map Analysis for Performance Assessment of the LHC Collimation System / Ziliotto, Filippo (Universita e INFN, Padova (IT)) ; D'Andrea, Marco (CERN) ; Redaelli, Stefano (CERN) ; Van Der Veken, Frederik (CERN)
Due to the rapid progress of the LHC performance, it is essential to monitor the damage potential of the circulating beams. [...]
CERN-ACC-NOTE-2023-0026.
- 2023.
Full text

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2024-01-20
08:08
In-situ radiological classification and characterization methodology of activated cables in particle accelerators / Dyrcz, Patrycja (CERN) ; Infantino, Angelo (CERN) ; Menaa, Nabil (CERN) ; El-Idrissi, Safouane (CERN) ; Tromel, Christophe (CERN) ; Vincke, Heinz (CERN)
The estimation of induced radioactivity and radiological classification of activated material is necessary throughout the life cycle of the Large Hadron Collider (LHC) accelerator. As part of the upgrade to HighLuminosity LHC (HL-LHC), radiation protection assessments need to be performed in order to estimate the radiological hazard during the dismantling activities of the LHC cables. [...]
2024 - 5 p. - Published in : Radiat. Phys. Chem. 216 (2024) 111439 Fulltext: PDF;

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2024-01-20
06:36
Development and Qualification of High Current Splices and Electrical Connections for the HL-LHC Magnets / Principe, R (CERN) ; Izquierdo-Bermudez, S (CERN) ; Milanese, A (CERN) ; Prin, H (CERN) ; Sgobba, S (CERN) ; Todesco, E (CERN)
The continuity of the 18, 13, and 2 kA circuits of the HL-LHC magnets heavily relies on splices and electrical connections, to which it is worth devoting a special attention from the early phases. This spans the design of the splice or connection itself, together with the tooling and related procedure, so that the execution can reliably yield high quality results. [...]
2024 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4800104

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2024-01-20
06:36
Field Quality Analysis of the Separation-Recombination Dipole MBRD for the High-Luminosity Upgrade of LHC / Pampaloni, A (INFN, Genoa) ; Bersani, A (INFN, Genoa) ; Bracco, M (INFN, Genoa ; Genoa U.) ; Caiffi, B (INFN, Genoa) ; Farinon, S (INFN, Genoa) ; Fiscarelli, L (CERN) ; Foussat, A (CERN) ; Gagno, A (INFN, Genoa ; Genoa U.) ; Levi, F (INFN, Genoa) ; Ninet, G (CERN) et al.
The Main Bending Recombination Dipole (MBRD), or D2, is one of the magnets foreseen by the High-Luminosity upgrade of the Large Hadron Collider (LHC). D2 features a double aperture, Nb-Ti, cos $\theta$dipole, with a central field of 4.5 T for a length of 7.78 m, hence with an integrated magnetic field of 35 T$\cdot$m, in a 105 mm bore. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4000505

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2024-01-09
06:13
Irradiation Induced Aging of Epoxy Resins for Impregnation of Superconducting Magnet Coils / Parragh, D M (CERN) ; Scheuerlein, C (CERN) ; Piccin, R (CERN) ; Ravotti, F (CERN) ; Pezzullo, G (CERN) ; Ternova, D (CERN) ; Taborelli, M (CERN) ; Lehner, M (Vienna, Tech. U., Atominst.) ; Eisterer, M (Vienna, Tech. U., Atominst.)
Understanding the effect of radiation on the functional properties of epoxy resins is crucial for their application in future particle accelerators like the Future Circular Collider (FCC). We compare the irradiation induced aging rates of six epoxy resin systems that can be used for the vacuum impregnation of magnet coils. [...]
2024 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 1-7 Fulltext: PDF;

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2023-12-13
06:46
Potential and constraints of a beam-beam wire compensator in the HL-LHC era / Sterbini, G (CERN) ; Bertarelli, A (CERN) ; Papaphilippou, Y (CERN) ; Poyet, A (CERN) ; Rossi, A (CERN) ; Bélanger, P (TRIUMF)
The compensation of the long-range beam-beam interactions by DC wires is currently being investigated as an option for enhancing machine performance in the framework of the High-Luminosity LHC Project. In this paper, we report and comment on the potential of wire compensation during the first HL-LHC run. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL103 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL103

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2023-12-13
06:46
Beam-Impact Validation of HL-LHC Collimator Materials: the "MultiMat-2" Experiment / Carra, F (CERN) ; Accettura, C (CERN) ; Bertarelli, A (CERN) ; Berthomé, E (CERN) ; Bruce, R (CERN) ; Charitonidis, N (CERN) ; Dalemir, M (CERN) ; Farina, E (CERN) ; Guardia-Valenzuela, J (CERN) ; Guinchard, M (CERN) et al.
In 2017, a proton-impact test HL-LHC collimator materials was carried out in the HiRadMat facility at CERN. The experiment, called “MultiMat”, enabled the testing of bulk and coated materials developed at CERN for different beam collimation functionalities. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPM109 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPM109

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2023-12-13
06:46
Beam-induced heating mitigation of the SPS kickers: a crucial upgrade to move towards HL-LHC beam intensities / Zannini, C (CERN) ; Barnes, M (CERN) ; Diaz, M (CERN) ; Ducimetière, L (CERN) ; Standen, D (CERN) ; Rumolo, G (CERN) ; Trubacova, P (CERN)
Beam-induced heating of equipment can have several undesirable effects, including rendering the equipment temporarily inoperative, equipment degradation and/or damage. Hence, to avoid these problems, it can be necessary to limit beam intensity. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL157 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL157

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2023-12-13
06:46
Impact of Crab Cavity RF noise on the transverse beam profiles in the HL-LHC / Fornara, A (U. Manchester (main)) ; Appleby, R (U. Manchester (main)) ; Sterbini, G (CERN)
Crab Cavities (CCs) are a key component for the HL-LHC luminosity upgrade. To significantly reduce the Long-Range Beam-Beam (LRBB) effects a large crossing angle scheme is needed . [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) WEPL119 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL119

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Ogranicz się do:
High Luminosity Large Hadron Collider (HL-LHC) (1,136)
HiLumi LHC (264)