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Main improvements of LHC Cryogenics Operation during Run 2 (2015-2018)
/ Delprat, L (CERN) ; Bradu, B (CERN) ; Brodzinski, K (CERN) ; Ferlin, G (CERN) ; Hafi, K (CERN) ; Herblin, L (CERN) ; Rogez, E (CERN) ; Suraci, A (CERN)
After the successful Run 1 (2010-2012), the LHC entered its first Long Shutdown period (LS1, 2013-2014). During LS1 the LHC cryogenic system went under a complete maintenance and consolidation program. [...]
2017 - 8 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 278 (2017) 012098
Fulltext: PDF;
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012098
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First Assessment of Reliability Data for the LHC Accelerator and Detector Cryogenic System Components
/ Perinic, G (CERN) ; Claudet, S (CERN) ; Alonso-Canella, I (CERN) ; Balle, C (CERN) ; Barth, K (CERN) ; Bel, J F (CERN) ; Benda, V (CERN) ; Bremer, J (CERN) ; Brodzinski, K (CERN) ; Casas-Cubillos, J (CERN) et al.
The Large Hadron Collider (LHC) cryogenic system comprises eight independent refrigeration and distribution systems that supply the eight 3.3 km long accelerator sectors with cryogenic refrigeration power as well as four refrigeration systems for the needs of the detectors ATLAS and CMS. In order to ensure the highest possible reliability of the installations, it is important to apply a reliability centred approach for the maintenance. [...]
CERN-ATS-2012-006.-
Geneva : CERN, 2012 - 9 p.
- Published in : AIP Conf. Proc. 1434 (2012) 1399-1406
Fulltext: PDF;
In : Cryogenic Engineering Conference & International Cryogenic Material Conference: Transactions of the Cryogenic Engineering Conference - CEC, Volume 57, Spokane, WA, USA, 13 - 17 Jun 2011, pp.1399-1406
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3.
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The commissioning of the instrumentation for the LHC tunnel cryogenics
/ Avramidou, R ; Anastasopoulos, K ; Bamis, C ; Casas-Cubillos, J ; Dragoneas, A ; Fampris, X ; Fernandez-Penacoba, G ; Gomes, P ; Gousiou, E ; Jeanmonod, N et al.
The Large Hadron Collider (LHC) at CERN is a superconducting accelerator and proton-proton collider of circumference of 27 km, lying about 100 m underground. [...]
LHC-PROJECT-Report-1182 ; CERN-LHC-PROJECT-Report-1182.
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2007. - 11 p.
Full text - Full text
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The Control System for the Cryogenics in the LHC Tunnel
/ Gomes, P (CERN) ; Anastasopoulos, K (Natl. Tech. U., Athens) ; Antoniotti, F (CERN) ; Avramidou, R (Natl. Tech. U., Athens) ; Balle, Ch (CERN) ; Blanco-Viñuela, E (CERN) ; Carminati, Ch (CERN) ; Casas-Cubillos, J (CERN) ; Ciechanowski, M (AGH-UST, Cracow) ; Dragoneas, A (Natl. Tech. U., Athens) et al.
The Large Hadron Collider makes extensive use of superconductors, in magnets for bending and focusing the particles, and in RF cavities for accelerating them, which are operated at 1.9 K and 4.5 K. The process automation for the cryogenic distribution around the accelerator circumference is based on 16 Programmable Logic Controllers, each running 250 control loops, 500 alarms and interlocks, and a phase sequencer. [...]
LHC-PROJECT-Report-1169; CERN-LHC-PROJECT-Report-1169.-
Geneva : CERN, 2009 - 7 p.
Fulltext: 001 ICEC 22 - 45 - PDF; LHC-PROJECT-REPORT-1169 - PDF;
In : 22nd International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2008, Seoul, Republic of Korea, 21 - 25 Jul 2008, pp.45-50
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5.
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Outcome of the Commissioning of the Readout and Actuation Channels for the Cryogenics of the LHC
/ Penacoba, G (CERN) ; Balle, C (CERN) ; de la Gama, J (CERN) ; Gomes, P (CERN) ; Goussiou, E (CERN) ; Jeanmonod, N (CERN) ; Lopez Lorente, A (CERN) ; Molina, E (CERN) ; Suraci, A (CERN) ; Vauthier, N (CERN)
The LHC is the largest cryogenic installation ever built. For its operation more than 14 000 sensors and actuators are required [...]
LHC-PROJECT-Report-1134; CERN-LHC-PROJECT-Report-1134.-
Geneva : CERN, 2008 - 4 p.
Preprint: PDF; External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEPD040
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First Experience with the LHC Cryogenic Instrumentation
/ Vauthier, N ; Avramidou, R ; Balle, Ch ; Casas-Cubillos, J ; Ciechanowski, M ; Fernandez-Penacoba, G ; Fortescue-Beck, E ; Gomes, P ; Jeanmonod, N ; Lopez-Lorente, A et al.
The LHC under commissioning at CERN will be the world's largest superconducting accelerator and therefore makes extensive use of cryogenic instruments. These instruments are installed in the tunnel and therefore have to withstand the LHC environment that imposes radiation-tolerant design and construction. [...]
LHC-PROJECT-Report-1078; CERN-LHC-PROJECT-Report-1078.-
2008 - 9 p.
- Published in : AIP Conf. Proc. 985 (2008) 957-964
Access to fulltext document: PDF;
In : Conference on Cryogenic Engineering and Cryogenic Materials, Chattanooga, TN, USA, 16 - 20 Jul 2007
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7.
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Reception Tests of the Cryogenic Distribution line for the Large Hadron Collider
/ Brodzinski, K ; Chorowski, M ; Ciechanowski, M ; Fluder, C ; Fydrych, J ; Gomes, P ; Millet, F ; Piotrowska, A ; Riddone, G ; Sanmartí, M et al.
The paper describes the thermo-mechanical validation of the first sector of cryogenic distribution line (QRL) [1] [...]
LHC-PROJECT-Report-988 ; CERN-LHC-PROJECT-Report-988.
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2007. - 5 p.
Access to fulltext document
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8.
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Experience with the String2 Cryogenic Instrumentation and Control System
/ Gomes, P ; Balle, C ; Blanco-Viñuela, E ; Casas-Cubillos, J ; Pelletier, S ; Rodríguez, M A ; Serio, L ; Suraci, A ; Vauthier, N
String2 was a 120 m full-scale model of a regular cell of the LHC accelerator arc. It was composed of eight superconducting main magnets, fed by a separate cryogenic distribution line (QRL); an electrical feed box (DFB) which supported the superconducting current leads that powered the magnets [1]. [...]
LHC-Project-Report-794; CERN-LHC-Project-Report-794.-
Geneva : CERN, 2005 - 5 p.
Access to fulltext document: PDF;
In : 20th International Cryogenic Engineering Conference and Exhibition, Beijing, China, 11 - 14 May 2004, pp.1051-1054
- Please contact the library if you need to access this document.
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9.
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The Cryogenic System for the LHC Test String 2 : Design, Commissioning and Operation
/ Blanco-Viñuela, E ; Calzas, A ; Casas-Cubillos, J ; Chanat, D ; Gomes, P ; Knoops, S ; Sanmartí, M ; Serio, L ; Suraci, A
A 107-m long superconducting magnet string representing a full-cell of the LHC machine was designed for assembly and commissioning at CERN in order to validate the final design choices. This new facility, thereafter called Test String 2, and its cryogenic infrastructure cons ist of feed and return boxes coupled via transfer lines to a 6 kW @ 4.5 K refrigerator and to a low pressure pumping group, a separate cryogenic distribution line, an electrical feed box with HTS current leads, 2 quadrupole and 6 dipole prototype and pre-series superconducting magnets..
LHC-Project-Report-614; CERN-LHC-Project-Report-614.-
Geneva : CERN, 2002 - 4 p.
Access to fulltext document: PDF;
In : 19th International Cryogenic Engineering Conference, Grenoble, France, 22 - 26 Jul 2002, pp.63-66
- Please contact the library if you need to access this document.
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10.
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Process Automation of a 600 A HTS Current Lead Cryogenic Test Facility Using a Field Network with Smart Instrumentation
/ Casas-Cubillos, J (CERN) ; Gomes, P (CERN) ; Jordung, U (CERN) ; Métral, L (CERN) ; Serio, L (CERN) ; Suraci, A (CERN)
1999
Published version: PDF;
In : 7th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems, Trieste, Italy, 4 - 8 Oct 1999, pp.e-proc. 382
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