CERN Accelerating science

Projects, Upgrade and Consolidation Projects

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2023-05-25
06:16
Fabrication and Power Test of Last MCBXFB Magnets / Jardim, Carla Martins (Madrid, CIEMAT) ; Alcázar, C (Madrid, CIEMAT) ; Domínguez, M A (Madrid, CIEMAT) ; Durán, O (Madrid, CIEMAT) ; Estévez, A (Madrid, CIEMAT) ; García-Matos, J A (Madrid, CIEMAT ; CERN) ; García-Tabarés, L (Madrid, CIEMAT) ; González, L (Madrid, CIEMAT) ; Gómez, P (Madrid, CIEMAT) ; Jiménez, J (Madrid, CIEMAT) et al.
MCBXFB magnets are nested orbit combined correctors for the upgrade of the LHC. The first three magnets were manufactured at CIEMAT and assembled at CERN, in the framework of the HL-LHC project. [...]
2022 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4007006
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4007006

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2023-05-25
06:16
Quench Protection of the HL-LHC Hollow Electron Lens Superconducting Solenoid Magnets / Wozniak, Mariusz (CERN) ; Foussat, Arnaud (CERN) ; Yammine, Samer (CERN) ; Steckert, Jens (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN) ; Kolehmainen, Antti (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN)
The High-Luminosity LHC (HL-LHC) project is an upgrade of the Large Hadron Collider (LHC) and comprises the installation of two Hollow Electron Lens (HEL) systems, each acting on one beam on both sides of LHC Point 4. The systems aim for a controlled depletion of hadron beam tails and an enhanced hadron beam halo collimation. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4701205
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4701205

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2023-05-25
06:16
Test Results of the MQYYM: A 90 Mm NbTi Quadrupole Magnet Option for HL-LHC / Simon, D (IRFU, Saclay) ; Perraud, S (IRFU, Saclay) ; Felice, H (IRFU, Saclay ; CERN) ; Godon, R (IRFU, Saclay) ; Machado, R Correia (IRFU, Saclay) ; Gheller, J M (IRFU, Saclay) ; Bouziat, D (IRFU, Saclay) ; Stepanov, V (IRFU, Saclay) ; Madur, A (IRFU, Saclay) ; Segreti, M (IRFU, Saclay) et al.
For the HL-LHC project, a 90 mm NbTi cos(2θ) double aperture quadrupole magnet with an operating gradient of 120 T/m at 1.9 K has been designed as an option to replace the 70 mm aperture LHC quadrupole MQY. CEA in collaboration with CERN designed and manufactured a single aperture short model magnet with a magnetic length of 1.215 m at 1.9 K called MQYYM. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004305
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004305

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2023-05-25
06:16
Test Result of a Full-Scale Prototype of Beam Separation Dipole Magnet for the High-Luminosity LHC Upgrade / Sugano, M (KEK, Tsukuba) ; Suzuki, K (KEK, Tsukuba) ; Nakamoto, T (KEK, Tsukuba) ; Iida, M (KEK, Tsukuba) ; Ikemoto, Y (KEK, Tsukuba) ; Kawamata, H (KEK, Tsukuba) ; Ogitsu, T (KEK, Tsukuba) ; Ohata, H (KEK, Tsukuba) ; Okada, N (KEK, Tsukuba) ; Okada, R (KEK, Tsukuba) et al.
High Energy Accelerator Research Organization (KEK) is developing Nb-Ti based beam separation dipole (MBXF) for the high-luminosity Large Hadron Collider (HL-LHC) upgrade within the framework of CERN–KEK collaboration. This magnet produces field integral of 35 T•m in a 150 mm bore at 12 kA and 1.9 K. [...]
2022 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4003407
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4003407

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2023-05-25
06:15
Application of the Universal Quench Detection System to the Protection of the High-Luminosity LHC Magnets at CERN / Steckert, Jens (CERN) ; Denz, Reiner (CERN) ; Mundra, Surbhi (CERN) ; Podzorny, Tomasz (CERN) ; Spasic, Jelena (CERN) ; Vancea, Dragos-Gabriel (CERN)
The Universal Quench Detection System (UQDS) has been primarily developed to detect quenches in various superconducting magnets of LHC’s High Luminosity upgrade (HL-LHC). The functionality of the system, which comprises insulated high-resolution digitizing front-end channels and a central processing element, is mainly defined by the configuration of the central FPGA (Field Programmable Gate Array). [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4006305
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4006305

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2023-05-25
06:15
The Separation-Recombination Dipole MBRD for the High-Luminosity LHC: From Prototype to Series / Levi, F (INFN, Genoa ; Genoa U.) ; Bersani, A (INFN, Genoa) ; Caiffi, B (INFN, Genoa) ; Cereseto, R (INFN, Genoa) ; Fabbricatore, P (INFN, Genoa) ; Farinon, S (INFN, Genoa) ; Foussat, A (CERN) ; Lonardo, F (Milan, Polytech.) ; Pampaloni, A (INFN, Genoa) ; Todesco, E (CERN)
The next upgrade for the Large Hadron Collider (LHC), called High-Luminosity LHC, has the aim of increasing the rate of collisions of the accelerator by a factor of ten. To achieve this goal, the dipole and quadrupole magnets before and after the interaction region of the ATLAS and CMS experiments will be replaced. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4003905
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4003905

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2023-05-25
06:15
Magnetic and Electromechanical Characterization of a High-$J_c$ RRP Wire for the HL-LHC MQXF Cable / Marzi, Gianluca De (ENEA, Frascati) ; Bordini, Bernardo (CERN) ; Muzzi, Luigi (ENEA, Frascati) ; Affinito, Luigi (ENEA, Frascati) ; Armenio, Achille Angrisani (ENEA, Frascati) ; Baffari, Dario (CERN) ; Formichetti, Andrea (Buenos Aires U.) ; Freda, Rosa (ENEA, Frascati) ; Merli, Lucio (Buenos Aires U.) ; Rufoloni, Alessandro (ENEA, Frascati) et al.
In this work, we summarize the results of a series of inductive and transport measurements aimed at the evaluation of the electromechanical performance of a 0.85 mm diameter RRP wire procured for the HL-LHC project. The critical current dependence on the magnetic field and uniaxial applied strain (between −0.2 and 0.5%) has been investigated in a temperature range between 4.5 K and 10 K. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 6001505
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.6001505

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2023-05-25
06:15
Protection Strategy and Quench Study of MCBXF Magnets / Toral, F (Madrid, CIEMAT) ; Alcázar, C (Madrid, CIEMAT) ; Domínguez, M (Madrid, CIEMAT) ; Durán, O (Madrid, CIEMAT) ; Fernández, A (Madrid, CIEMAT) ; García-Matos, J A (Madrid, CIEMAT ; CERN) ; García-Tabarés, L (Madrid, CIEMAT) ; González, L A (Madrid, CIEMAT) ; Gómez, P (Madrid, CIEMAT) ; Jiménez, J (Madrid, CIEMAT) et al.
Nested combined orbit correctors are needed for the upgrade of LHC. They are developed at CIEMAT, in collaboration with CERN in the framework of HL-LHC project. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004005
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004005

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2023-05-25
06:15
The HL-LHC High Order Correctors Series Production and Powering Tests Status / Statera, M (Milan U.) ; Broggi, F (Milan U.) ; Matteis, E De (Milan U.) ; Imeri, L (Milan U.) ; Leone, A (Milan U.) ; Mariotto, S (Milan U. ; INFN, Milan) ; Paccalini, A (Milan U.) ; Pasini, A (Milan U.) ; Pedrini, D (Milan U.) ; Prioli, M (Milan U.) et al.
INFN is developing at the LASA lab (Milano, Italy) the High Order (HO) corrector magnets for the High Luminosity-LHC (HL-LHC) project, which will equip the new interaction regions. All the HO correctors, from skew quadrupole to dodecapole, are based on a novel superferric design, never used so far in high energy colliders, which allows a relatively simple, modular, and easy way to construct a magnet. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004405
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004405

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2023-05-19
11:06
HL-LHC Crab Cavity Field Regulation and Resulting RF Noise Spectrum / Baudrenghien, Philippe (CERN) ; Mastoridis, Themistoklis (California Polytechnic State Univ. (US))
The HL-LHC Low Level RF (LLRF) must fulfill three requirements: it must reduce the cavity impedance at the fundamental below the instability threshold, it must regulate the crab cavity voltage precisely (amplitude and phase), and it must provide a cavity field with a spectral purity resulting in negligible degradation of the integrated luminosity due to transverse emittance growth. [...]
CERN-ACC-NOTE-2023-0006.
- 2023.
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High Luminosity Large Hadron Collider (HL-LHC) (1,109)
HiLumi LHC (264)