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1.
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Automatic Conditioning of High Voltage Pulsed Magnets
/ Lolliot, Christophe (CERN) ; Barnes, Michael (CERN) ; Magnin, Nicolas (CERN) ; Monier, Colin (INSA, Villeurbanne) ; Pavis, Steven (CERN)
Fast pulsed kicker magnets are used across the various accelerators of CERN complex to inject and extract the beam. These kicker magnets, powered by high voltage pulsed generators and under vacuum, are prone to electrical breakdown during the pulse. [...]
2023 - 4 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP098
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP098
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2.
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Early Fire Detection in High Power Equipment
/ Pavis, Steven (CERN) ; Carlier, Etienne (CERN) ; Lolliot, Christophe (CERN) ; Magnin, Nicolas (CERN)
Very early fire detection in equipment cabinets containing high power supply sources and power electronic switching devices is needed when building and tunnel fire detection systems may not be well placed to detect a fire until it is well established. Highly sensitive aspirating smoke detection systems which continuously sample the air quality inside equipment racks and give local power interlock in the event of smoke detection, are capable of cutting the source of power to these circuits at a very early stage, thereby preventing fires before they become fully established. [...]
2023 - 5 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP096
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP096
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3.
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A Modular Approach for Accelerator Controls Components Deployment for High Power Pulsed Systems
/ Pavis, Steven (CERN) ; Barlow, Roger (CERN) ; Boucly, Christophe (CERN) ; Carlier, Etienne (CERN) ; Chanavat, Christophe (CERN) ; Lolliot, Christophe (CERN) ; Magnin, Nicolas (CERN) ; Van Trappen, Pieter (CERN) ; Voumard, Nicolas (CERN)
As part of the LHC Injector Upgrade (LIU) project, the controls of the PSB and PS injection kickers at CERN have been upgraded during Long Shutdown 2 (LS2) from heterogeneous home-made electronic solutions to a modular and open architecture. Despite both kickers have significantly different functionalities, topologies and operational requirements, standardized hardware and software control blocks have been used for both systems. [...]
2023 - 5 p.
- Published in : JACoW ICALEPCS 2023 (2023) TUPDP101
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.TUPDP101
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4.
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LHC Oxygen Run Preparation in the CERN Injector Complex
/ Slupecki, Maciej (CERN) ; Aguglia, Davide (CERN) ; Aguiar, Ygor (Universite Jean Monnet (FR)) ; Alemany Fernandez, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Barlow, Roger Andrew (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bilko, Kacper (Universite Jean Monnet (FR)) ; Borburgh, Jan (CERN) et al.
The Ion Accelerator Complex, composed of a linear accelerator (Linac3) and a chain of synchrotrons (Low Energy Ion Ring: LEIR, Proton Synchrotron: PS, Super Proton Synchrotron: SPS and the Large Hadron Collider: LHC) will operate oxygen ion beams for Oxygen–Oxygen (O–O) and proton–Oxygen (p–O) collisions in the LHC in Run 3. [...]
CERN-ACC-NOTE-2024-0001.
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2024. - 29 p.
Full text
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5.
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Deployment and Commissioning of the CERN PS Injection Kicker System for Operation with 2 GeV Beams in Short Circuit Mode
/ Kramer, Thomas (CERN) ; Ayala Cintas, Nuria (CERN) ; Borburgh, Jan (CERN) ; Burkel, Peter (CERN) ; Carlier, Etienne (CERN) ; Ducimetière, Laurent (CERN) ; Feliciano, Luís M C (CERN) ; Ferrero Colomo, Álvaro (CERN) ; Fraser, Matthew A (CERN) ; Govertsen, Leif A (CERN) et al.
Within the framework of the LHC Injector Upgrade (LIU) project, the feasibility and design of an upgrade of the existing CERN PS proton injection kicker system have been outlined in previous publications already. This paper describes the adjustments of final design choices, testing, and deployment as well as the validation and commissioning of the new 2 GeV injection kicker system. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 4489-4492
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4489-4492
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6.
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The CMS Phase-1 Pixel Detector Upgrade
/ CMS Tracker Group of the CMS Collaboration
The CMS detector at the CERN LHC features a silicon pixel detector as its innermost subdetector. The original CMS pixel detector has been replaced with an upgraded pixel system (CMS Phase-1 pixel detector) in the extended year-end technical stop of the LHC in 2016/2017. [...]
arXiv:2012.14304.-
2021-02-22 - 84 p.
- Published in : JINST 16 (2021) P02027
Fulltext: 2012.14304 - PDF; fermilab-pub-20-697-cms - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; External link: Fermilab Accepted Manuscript
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7.
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Development, commissioning and operation of the large scale CO$_2$ detector cooling systems for CMS pixel phase I upgrade
/ Ostrega, Maciej (CERN) ; Daguin, Jerome (CERN) ; Pavis, Steven (CERN) ; Petagna, Paolo (CERN) ; Tropea, Paola (CERN) ; Verlaat, Bart (CERN) ; Zwalinski, Lukasz (CERN)
During the 2017 Year-end Technical Stop of the Large Hadron Collider at CERN, the CMS experiment has successfully installed a new pixel detector in the frame of Phase I upgrade. This new detector will operate using evaporative CO$_{2}$ technology as its cooling system. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-ICALEPCS2017-THPHA050
Fulltext: PDF;
In : International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017, pp.THPHA050
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8.
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CO$_2$ cooling for particle detectors : experiences from the CMS and ATLAS detector systems at the LHC, and prospects for future upgrades
/ Bortolin, C (CERN) ; Crespo-Lopez, O (CERN) ; Daguin, J (CERN) ; Godlewski, J (CERN) ; Noite, J (CERN) ; Ostrega, M (AGH-UST, Cracow) ; Pavis, S (CERN) ; Petagna, P (CERN) ; Postema, H (CERN) ; Tropea, P (CERN) et al.
2015
Fulltext: PDF;
In : 24th IIR International Congress of Refrigeration, Yokohama, Japan, 16 - 22 Aug 2015, pp.788
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9.
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Characterisation of irradiated thin silicon sensors for the CMS phase II pixel upgrade
/ Adam, W (Vienna, OAW) ; Bergauer, T (Vienna, OAW) ; Brondolin, E (Vienna, OAW) ; Dragicevic, M (Vienna, OAW) ; Friedl, M (Vienna, OAW) ; Frühwirth, R (Vienna, OAW) ; Hoch, M (Vienna, OAW) ; Hrubec, J (Vienna, OAW) ; König, A (Vienna, OAW) ; Steininger, H (Vienna, OAW) et al.
/Tracker Group
The high luminosity upgrade of the Large Hadron Collider, foreseen for 2026, necessitates the replacement of the CMS experiment’s silicon tracker. The innermost layer of the new pixel detector will be exposed to severe radiation, corresponding to a 1 MeV neutron equivalent fluence of up to $\Phi _{eq} = 2 \times 10^{16}$ cm$^{-2}$ , and an ionising dose of ${\approx } 5$ MGy after an integrated luminosity of 3000 fb$^{-1}$ . [...]
2017 - 13 p.
- Published in : Eur. Phys. J. C 77 (2017) 567
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10.
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P-Type Silicon Strip Sensors for the new CMS Tracker at HL-LHC
/ Adam, W (Vienna, OAW) ; Bergauer, T (Vienna, OAW) ; Brondolin, E (Vienna, OAW) ; Dragicevic, M (Vienna, OAW) ; Friedl, M (Vienna, OAW) ; Frühwirth, R (Vienna, OAW) ; Hoch, M (Vienna, OAW) ; Hrubec, J (Vienna, OAW) ; König, A (Vienna, OAW) ; Steininger, H (Vienna, OAW) et al.
/CMS
The upgrade of the LHC to the High-Luminosity LHC (HL-LHC) is expected to increase the LHC design luminosity by an order of magnitude. This will require silicon tracking detectors with a significantly higher radiation hardness. [...]
2017 - 27 p.
- Published in : JINST 12 (2017) P06018
Fulltext: PDF;
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