CERN Accelerating science


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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Numerical Methods to Optimize the LHC Luminosity Computation / Rufolo, Matteo
One of the most significant merit figures in the Large Hadron Collider, LHC, is the luminosity [...]
CERN-THESIS-2023-232 - 102 p.

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MD6864 — Decapole studies at injection / Le Garrec, Mael (Goethe University Frankfurt (DE)) ; Carlier, Felix Simon (CERN) ; Dilly, Joschua Werner (CERN) ; Ferrentino, Vittorio (Universita di Napoli Federico II (IT)) ; Maclean, Ewen Hamish (CERN) ; Paraschou, Konstantinos (CERN) ; Tomas Garcia, Rogelio (CERN)
Chromaticity and amplitude detuning measurements were performed in the past at injection. [...]
- 2023.
Full text

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ATLAS Halloween Stencil - Dark Matter Event Display / Anthony, Katarina (CERN)
Explore the ATLAS seasonal activities with these free-to-download halloween stencils!
- 2023.
Language: English

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Energy deposition studies for the Upgrade II of LHCb at the CERN Large Hadron Collider / Ciccotelli, Alessia (CERN ; U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Appleby, Robert B. (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Cerutti, Francesco (CERN) ; Buffet, Kevin (CERN) ; Butin, Francois (CERN) ; Corti, Gloria (CERN) ; Esposito, Luigi Salvatore (CERN) ; Garcia Alia, Ruben (CERN) ; Karacson, Matthias (CERN) ; Lerner, Giuseppe (CERN) et al.
The Upgrade II of the LHCb experiment is proposed to be installed during the CERN Long Shutdown 4, aiming to operate LHCb at 1.5x$10^{34}cm^{-2}s^{-1}$ that is 75 times its design luminosity and reaching an integrated luminosity of about $400 fb^{-1}$ by the end of the High Luminosity LHC era. [...]
- 17 p.

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High Energy LHC Machine Options in the LHC Tunnel / Bottura, Luca (CERN) ; Zimmermann, Frank (CERN)
The LHC infrastructure, i.e. the tunnel itself as well as the services associated with power, cooling, ventilation, network and access (among others), represent a considerable asset, and may be considered for hosting and supporting future versions of a “LHC” beyond its present configuration and the HL-LHC upgrade. [...]
2023 - 30 p. - Published in : 10.1142/9789811280184_0026 Fulltext: PDF;
In : The future of the Large Hadron Collider, pp.367-396

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The LHC as FCC injectors / Benedikt, Michael (CERN) ; Goddard, Brennan (CERN)
The re-use of the modified LHC is presently the reference baseline for the High Energy Booster (HEB) injector into the FCC-hh hadron collider, although a number of other promising options exist. As part of the FCC study, the transformation of the LHC into the last acceleration stage into the new collider has been investigated in some detail, including the key aspects of new insertion designs and faster ramping. [...]
2023 - 9 p. - Published in : 10.1142/9789811280184_0030 Fulltext: PDF;
In : The future of the Large Hadron Collider, pp.427-435

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Commissioning and the Initial Operation of the LHC / Lamont, Mike (CERN)
A brief review of Run 1 and Run 2 is given below, firstly to outline the progress made, and secondly to highlight the issues encountered and surmounted along the way. An overview of operational features of the machine and the lessons learnt is then presented. [...]
2023 - 18 p. - Published in : 10.1142/9789811280184_0002 Fulltext: PDF;
In : The future of the Large Hadron Collider, pp.19-36

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HL-LHC configuration and operational challenges / Apollonio, Andrea (CERN) ; Buffat, Xavier (CERN) ; Bruce, Roderik (CERN) ; De Maria, Riccardo (CERN)
Recently, the operational configuration of the HL-LHC along its first Run has been carefully established to reach nominal performance. This chapter presents the key beam and machine parameters together with the most critical operational challenges. [...]
2023 - 26 p. - Published in : 10.1142/9789811280184_0006 Fulltext: PDF;
In : The future of the Large Hadron Collider, pp.95-120

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LHC injection optics commissioning in 2021 and 2022 / Persson, Tobias Hakan Bjorn (CERN) ; Carlier, Felix Simon (CERN) ; Dilly, Joschua Werner (CERN) ; Fartoukh, Stephane (CERN) ; Fol, Elena (CERN) ; Garcia Morales, Hector ; Hofer, Michael (CERN) ; Keintzel, Jacqueline (CERN) ; Maclean, Ewen Hamish (CERN) ; Malina, Lukas et al.
LHC injection optics commissioning in 2021 and 2022
- 2023.

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High Luminosity Large Hadron Collider (HL-LHC) (1,116)
HiLumi LHC (264)