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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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2.
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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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3.
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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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4.
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Optimization of Diffuser (Pre-Scatterer) Configurations for Slow Extraction Loss Reduction at Electrostatic Septa
/ Goddard, Brennan (CERN) ; Balhan, Bruno (CERN) ; Barna, Daniel (Wigner RCP, Budapest) ; Borburgh, Jan (CERN) ; Fraser, Matthew (CERN) ; Jorat, Louise Olivia (CERN) ; Kain, Verena (CERN) ; Lolliot, Christophe (CERN) ; Nagaslaev, Vladimir (Fermilab) ; Stoel, Linda (CERN) et al.
Uncontrolled beam loss at the electrostatic septum is a performance limit for several existing or planned high power hadron accelerators delivering slow-extracted spills to fixed targets. A passive diffuser, or pre-scatterer, in a suitable configuration has been shown to reduce such beamloss significantly, with the actual gain factor depending on the parameters and details of the extraction process and hardware. [...]
FERMILAB-CONF-18-456-AD.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF053
Fulltext: fermilab-conf-18-456-ad - PDF; tupaf053 - PDF; External link: FERMILABCONF
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF053
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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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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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9.
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LHC Beam Dump Performance in View of the High Luminosity Upgrade
/ Wiesner, Christoph (CERN) ; Bartmann, Wolfgang (CERN) ; Bracco, Chiara (CERN) ; Carlier, Etienne (CERN) ; Ducimetière, Laurent (CERN) ; Frankl, Matthias (CERN) ; Fraser, Matthew (CERN) ; Goddard, Brennan (CERN) ; Kramer, Thomas (CERN) ; Lechner, Anton (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) project will increase the total beam intensity in the LHC by nearly a factor of two. Analysis and follow-up of recent operational issues as well as dedicated studies of the LHC Beam Dump System (LBDS) have been carried out to ensure the safe operation with HL-LHC parameters and to decide on possible hardware upgrades to meet the HL-LHC requirements. [...]
CERN-ACC-2017-159.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPIK033
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK033
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10.
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Why Should You Invest in Asset Management? A Fire and Gas Use Case
/ Nissen, Henrik (CERN) ; Grau, Silvia (CERN)
At present, the CERN Fire and Gas detection systems involve about 22500 sensors and their number is increasing rapidly at the same time as the number of equipped installations grows up. These assets cover a wide spectrum of technologies, manufacturers, models, parameters, and ages, reflecting the 60 years of CERN history. [...]
2020 - 5 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-WEMPR004
Fulltext: PDF;
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.1041
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