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1.
Quench detection and diagnostic systems for the superconducting circuits for the HL-LHC / Denz, Reiner (CERN) ; Blasco Serrano, Daniel (Madrid, CIEMAT ; CERN) ; Calcoen, Daniel (CERN) ; De Matteis, Ernesto (CERN) ; Froidbise, Vincent (CERN) ; Georgakakis, Spyridon (CERN) ; Haas, Severin (CERN) ; Mundra, Surbhi (CERN) ; Podzorny, Tomasz (CERN) ; Siemko, Andrzej (CERN) et al.
The High Luminosity Upgrade of the LHC [1] will incorporate a new generation of superconducting elements such as high field superconducting magnets based on Nb$_3$Sn conductors and MgB$_2$ high temperature superconducting links for magnet powering. The proper protection and diagnostics of those elements require the development of a new generation of integrated quench detection and data acquisition systems as well as novel methods for quench detection. [...]
CERN-ACC-2019-259.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-THPTS036 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPTS036
2.
An Enhanced Quench Detection System for Main Quadrupole Magnets in the Large Hadron Collider / Spasic, Jelena (CERN) ; Calcoen, Daniel (CERN) ; Denz, Reiner (CERN) ; Froidbise, Vincent (CERN) ; Georgakakis, Spyridon (CERN) ; Podzorny, Tomasz (CERN) ; Siemko, Andrzej (CERN) ; Steckert, Jens (CERN)
To further improve the performance and reliability of the quench detection system (QDS) for main quadrupole magnets in the Large Hadron Collider (LHC), there is a planned upgrade of the system during the long shutdown period of the LHC in 2019-2020. While improving the already existing functionalities of quench detection for quadrupole magnets and field-bus data acquisition, the enhanced QDS will incorporate new functionalities to strengthen and improve the system operation and maintenance. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF081 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF081
3.
A New Cryogenic Test Facility for Large and Heavy Superconducting Magnets / Serio, Luigi (CERN) ; Schnizer, Pierre (Darmstadt, GSI) ; Arnaud, Michel (CERN) ; Bertone, Caterina (CERN) ; Blanco, Enrique (CERN) ; Calcoen, Daniel (CERN) ; Charrondiere, Maryline (CERN) ; Cho, Eun Jung (Darmstadt, GSI) ; Coelingh, Gert-Jan (CERN) ; Dahlerup-Petersen, Knud (CERN) et al.
CERN has recently designed and constructed a new cryogenic facility for testing large and heavy superconducting magnets at liquid helium temperatures. The facility, erected in a large assembly hall with cranes capable of up to 100 t, provides a cooling capacity of 1.2 kW at 4.5 K equivalent, 15-kW LN$_2$ cooling and warming capabilities for up to three magnets in parallel. [...]
2016 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 27 (2017) 9500105
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.9500105
4.
A Statistical Analysis of Electrical Faults in the LHC Superconducting Magnets and Circuits / Bottura, Luca (CERN) ; Tock, Jean-Philippe (CERN) ; Auchmann, Bernard (CERN) ; Bednarek, Mateusz (CERN) ; Calcoen, Daniel (CERN) ; Charifoulline, Zinour (CERN) ; Coelingh, Gert-Jan (CERN) ; D'Angelo, Giorgio (CERN) ; Hagen, Per (CERN) ; Le Naour, Sandrine (CERN) et al.
The large hadron collider (LHC) at CERN has been operating and generating physics experimental data since September 2008, and following its first long shut down, it has entered a second, 4-year-long physics run. It is to date the largest superconducting installation ever built, counting over 9000 magnets along its 27-km long circumference. [...]
2017 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 28 (2017) 4000505
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4000505
5.
Analysis of the Dependability of the LHC Quench Detection System During LHC Run 2 and Further System Evolution / Podzorny, Tomasz (CERN) ; Calcoen, Daniel (CERN) ; Denz, Reiner (CERN) ; Siemko, Andrzej (CERN) ; Spasic, Jelena (CERN) ; Steckert, Jens (CERN)
The quench detection system (QDS) of the LHC superconducting circuits is an essential part of the LHC machine protection and ensures the integrity of key elements of the accelerator. The large amount of hardwired and software interlock channels of the QDS requires a very high system dependability in order to reduce the risk of affecting the successful operation of the LHC. [...]
CERN-ACC-2017-129.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-TUPAB007 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPAB007
6.
CERN Beam Interlock Redundant Dump Trigger Module Performance during LHC Run 2 / Calcoen, Daniel (CERN) ; Gabourin, Stéphane (CERN) ; Siemko, Andrzej (CERN)
During the Long Shutdown 1 an additional link between the Beam Interlocks System and the LHC Beam Dumping System was installed. This third channel is a direct access from the BIS to the asynchronous dump triggering lines. [...]
CERN-ACC-2016-125.- 2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-THPOY041 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOY041

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