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HL-LHC Conference Papers

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2023-11-16
16:44
MOSFET Selection for a 18ka modular power converter for HL-LHC inner triplet / Wassinger, Nicolas ; Maestri, Sebastian (National Scientific and Technical Research Council (AR)) ; Garcia Retegui, Rogelio (ICYTE, COCINET-UNMDP, Mar del Plata, Argentina) ; Funes, Miguel (ICYTE, COCINET-UNMDP, Mar del Plata, Argentina) ; Antoszczuk, Pablo Daniel (CERN) ; Pittet, Serge (CERN)
The upgrade of the Large Hadron Collider (LHC) at CERN towards the High Luminosity-LHC (HL-LHC) presents different challenges, among them, the upgrade of the power converters associated to the inner triplet magnets to reach the required rated current of 18kA. In order to reach this current and to accomplish the stringent requirements associated to this kind of application, even under a fault scenario, redundancy and modularity are foreseen in the converter design. [...]
CERN-ACC-2023-0003.- Geneva : CERN, 2023 - 13 p. - Published in : Power Electronic Devices and Components (PEDC) 6 (2023) NONE

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2023-08-30
07:45
HL-LHC status and operational scenarios / De Maria, Riccardo (CERN) ; Tomas, Rogelio (CERN)
This contribution presents the status of the HL-LHC project, the draft schedule and the associated operational scenarios. The contribution will focus on expected beam parameters, machine optics and cycles, and performance estimates. [...]
2022 - 6 p. - Published in : PoS ICHEP2022 (2022) 049 Fulltext: PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.049

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2023-08-23
06:25
QCD at a Forward Physics Facility at the High-Luminosity LHC / Di Crescenzo, Antonia (CERN ; INFN, Naples ; Naples U.)
The Forward Physics Facility (FPF) is a proposal to build a new underground in the far-forward region of ATLAS to house a suite of experiments with groundbreaking new capabilities for many Standard Model studies and new physics searches. Although existing LHC detectors have great coverage of the central region, the production of particles in the far-forward direction is poorly constrained. [...]
2023 - 8 p. - Published in : Acta Phys. Pol. B Proc. Suppl. 16 (2023) 43 Fulltext: PDF;
In : Diffraction and Low-x 2022, Corigliano Calabro, Cosenza, Italy, 24 - 30 Sep 2022, pp.43

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2023-06-16
07:13
Effect of the Sub-Elements Layout on the Electro-Mechanical Properties of High Jc Nb3Sn Wires Under Transverse Load: Numerical Simulations / Baffari, D (CERN) ; Bordini, B (CERN)
The brittle intermetallic Nb 3 Sn superconductor is currently being used to develop high field magnets in the framework of the Hi-Luminosity upgrade of the Large Hadron Collider at CERN. Despite its excellent superconductive properties,Nb 3 Sn wires suffer from significant critical current Ic reduction due to the transverse load applied during the magnets’ assembly and energization. [...]
2022 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 6001306
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.6001306

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2023-06-14
06:09
CIC: a radiation tolerant 65 nm data aggregation ASIC for the future CMS tracking detector at LHC / Nodari, B (IP2I, Lyon) ; Bergamin, G (CERN) ; Caponetto, L (IP2I, Lyon) ; Caratelli, A (CERN) ; Ceresa, D (CERN) ; Galbit, G (IP2I, Lyon) ; Kloukinas, K (CERN) ; Scarfi’, S (CERN) ; Viret, S (IP2I, Lyon)
For the Phase II upgrade at HL-LHC, CMS needs a new Outer Tracker detector able to cope with reduced material budget, increased radiation tolerance and higher pile-up conditions with respect to LHC. The main feature of the Outer Tracker will be its inclusion at the first level of the CMS trigger system with data readout at 40 MHz. [...]
2023 - 6 p. - Published in : JINST 18 (2023) C02035
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C02035

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2023-06-09
06:03
The upgrade of the CMS electromagnetic calorimeter: Future prospects for precision timing and energy measurements at the HL-LHC / Biino, Cristina (INFN, Turin) /CMS Collaboration
The Compact Muon Solenoid (CMS) electromagnetic calorimeter (ECAL) is a high granularity lead tungstate crystal calorimeter operated at the CERN LHC. The future High Luminosity upgrade of the LHC will provide unprecedented instantaneous and integrated luminosity with up to 200 collisions per bunch-crossing [pileup (PU)]. [...]
2022 - 10 p. - Published in : Int. J. Mod. Phys. A 37 (2022) 2240007
In : 9th International Conference on New Frontiers in Physics (ICNFP), Online, Greece, 4 - 12 Sep 2020, pp.2240007

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2023-06-09
06:02
Latest developments and characterisation results of DMAPS in TowerJazz 180nm for High Luminosity LHC / de Acedo, L Flores Sanz (CERN ; Glasgow U.) ; Allport, P (Birmingham U.) ; Tortajada, I Asensi (Valencia U., IFIC) ; Bortoletto, D (Oxford U.) ; Buttar, C (Glasgow U.) ; Cardella, R (CERN ; Geneva U.) ; Dachs, F (CERN ; TU Vienna) ; Dao, V (CERN) ; Dobrijevic, D (CERN ; Zagreb U.) ; Dyndal, M (CERN) et al.
The last couple of years have seen the development of Depleted Monolithic Active Pixel Sensors (DMAPS) fabricated in TowerJazz 180nm with a process modification to increase the radiation tolerance. While many of MAPS developments focus on low radiation environment, we have taken the development to high radiation environment like pp-experiments at High Luminosity LHC [...]
2022 - 4 p. - Published in : J. Phys. : Conf. Ser. 2374 (2022) 012169 Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012169

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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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