CERN Accelerating science

HL-LHC Conference Papers

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Optics Measurement and Correction Strategies for HL-LHC / Buffat, Xavier (CERN) ; Carlier, Felix Simon (CERN) ; Coello De Portugal - Martinez Vazquez, Jaime Maria ; De Maria, Riccardo (CERN) ; Dilly, Joschua Werner (Humboldt University of Berlin (DE)) ; Fol, Elena (CERN) ; Fuster Martinez, Nuria ; Gamba, Davide (CERN) ; Garcia Morales, Hector ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) et al.
The baseline strategy for optics commissioning in the HL-LHC era is presented and reviewed in detail, along with recent developments and unsolved matters in the linear and nonlinear optics measurement and correction techniques..
- 2022. - 102 p.

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Experimental verification of thermal model for PCB mounted MOSFETs used on parallel H-bridge structures. / Garcia Retegui, Rogelio (ICYTE CONICET-UNMdP) ; Wassinger, Nicolas (ICYTE CONICET-UNMdP) ; Maestri, Sebastian (ICYTE CONICET-UNMdP) ; Antoszczuk, Pablo Daniel (ICYTE CONICET-UNMdP) ; Funes, Marcos (ICYTE CONICET-UNMdP) ; Pittet, Serge (CERN)
The upgrade of the Large Hadron Collider (LHC) 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 nominal current of 18 kA. [...]
- 2021. - 7 p.
Full text

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Conclusion of the Electrical Conformity Assessment Panel on the Installation of the MBH Magnet S2 in the LHC / Siemko, Andrzej (CERN) ; Devred, Arnaud (CERN) ; Rodriguez Mateos, Felix (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Verweij, Arjan (CERN) ; Wenninger, Jorg (CERN)
In this report we assess the feasibility for installation of the $Nb_{3}$Sn MBH S2 magnet in the LHC and conclude on possible performance limitations..
- 2021. - 26 p.

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HL-LHC Run 4 proton operational scenario / Tomas Garcia, Rogelio (CERN) ; Arduini, Gianluigi (CERN) ; Baudrenghien, Philippe (CERN) ; Bruning, Oliver (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Calaga, Rama (CERN) ; De Maria, Riccardo (CERN) ; Dilly, Joschua Werner (Humboldt University of Berlin (DE)) ; Efthymiopoulos, Ilias (CERN) et al.
Following new findings in beam dynamics and the latest HL-LHC project decisions, an operational scenario has been developed for the first HL-LHC run, Run 4. [...]
- 2022. - 37 p.

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HL-LHC Computing Review Stage 2, Common Software Projects: Data Science Tools for Analysis / Pivarski, Jim (ed.) (Princeton U. (main)) ; Rodrigues, Eduardo (ed.) (Liverpool U.) ; Pedro, Kevin (ed.) (Fermilab) ; Shadura, Oksana (U. Nebraska, Lincoln) ; Krikler, Benjamin (Bristol U.) ; Stewart, Graeme A. (CERN)
This paper was prepared by the HEP Software Foundation (HSF) PyHEP Working Group as input to the second phase of the LHCC review of High-Luminosity LHC (HL-LHC) computing, which took place in November, 2021. [...]
arXiv:2202.02194 ; FERMILAB-CONF-22-061-SCD.
- 26 p.

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LPNHE-FBK Thin n-on-p Pixel Sensors for HL-LHC Upgrade and Beyond / Calderini, G (Paris U., VI-VII) ; Bomben, M (Paris U., VI-VII) ; Boscardin, M (Fond. Bruno Kessler, Povo) ; Bosisio, L (INFN, Trieste ; Trieste U.) ; Borghi, G (Fond. Bruno Kessler, Povo) ; Camacho, R (Paris U., VI-VII) ; Crescioli, F (Paris U., VI-VII) ; Betta, G F Dalla (Trento U. ; INFN, Trento) ; Ficorella, F (Fond. Bruno Kessler, Povo) ; Giacomini, G (Brookhaven) et al.
In view of the LHC upgrade phase towards the High Luminosity LHC (HL-LHC), the ATLAS experiment plans to upgrade the Inner Detector with an all-silicon system. The n-on-p silicon technology is a promising candidate to achieve a large area instrumented with pixel sensors, since it is radiation hard and cost effective. [...]
2021 - 7 p. - Published in : JPS Conf. Proc. 34 (2021) 010021 Fulltext: PDF;
In : 29th International Workshop on Vertex Detectors, Virtual, Japan, 5 - 8 Oct 2020, pp.010021

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Method for common mode voltage analysis in a system with multiple input noise sources / Retegui, R Garcia (Buenos Aires, CONICET) ; Wassinger, N (Buenos Aires, CONICET) ; Maestri, S (Buenos Aires, CONICET) ; Pittet, S (CERN) ; Burnet, JP (CERN)
Power converters associated to inner triplet magnets of the Large Hadron Collider (LHC) are being updated. In this sense, conversion schemes with parallel association of H-bridge structures and integrated local energy storage systems are considered [...]
2019 - 6 p. - Published in : 10.1109/rpic.2019.8882139
In : 18th Workshop on Information Processing and Control (RPIC 2019), Bahía Blanca, Argentina, 18 - 20 Sep 2019, pp.82 - 87

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Prospects of non-resonant Higgs pair production at the HL-LHC and HE-LHC / Adhikary, Amit (Bangalore, Indian Inst. Sci.) ; Banerjee, Shankha (Durham U., IPPP) ; Barman, Rahool Kumar (IACS, Kolkata) ; Bhattacherjee, Biplob (Bangalore, Indian Inst. Sci.) ; Niyogi, Saurabh (Gokhale Coll., Calcutta)
The prospects of observing the di-Higgs production in the Standard Model (SM) is explored. We choose final states based on considerable production rate and cleanliness. [...]
2020 - 8 p. - Published in : J. Phys. : Conf. Ser. 1690 (2020) 012149
In : 5th International Conference on Particle Physics and Astrophysics (ICPPA), pp.012149

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Power Supply System with Integrated Energy Storage for Superconducting Magnets / Papamichali, Maria (EPFL, Switzerland) ; Coulinge, Emilien (EPFL, Switzerland) ; Freijedo, Francisco D. (EPFL, Switzerland) ; Dujic, Dražen (EPFL, Switzerland)
To achieve higher collision rate of particle beams, CERN Large Hadron Collider requires new superconducting magnets and associated power supplies at the interaction points for its High-Luminosity upgrade. A new family of two-quadrant converters with integrated energy storage is studied in order to increase the system availability and energy efficiency. [...]
2018 - Published in : (2018) , pp. 8403072
In : International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Europe 2018), Nuremberg, Germany, 5 - 7 Jun 2018, pp.8403072

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Irradiation aging of the CMS Drift Tube muon detector / Ferrero, D.D. Redondo ; Abbiendi, G. ; Maestre, J. Alcaraz ; Fernández, A. Álvarez ; González, B. Álvarez ; Amapane, N. ; Bachiller, I. ; Barcala, J.M. ; Barcellan, L. ; Battilana, C. et al.
During the High Luminosity LHC, the Drift Tube chambers installed in the CMS detector need to operate with an integrated dose ten times higher than expected at the LHC due to the increase in integrated luminosity from 300 fb${-1}$ to 3000 fb$^{-1}$. Irradiations have been performed to assess the performance of the detector under such conditions and to characterize the radiation aging of the detector. [...]
2020 - 6 p. - Published in : Radiat. Phys. Chem. 172 (2020) 108747
In : 3rd International Conference on Dosimetry and its Applications, Lisbon, Portugal, 27 - 31 May 2019, pp.108747

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