CERN Accelerating science

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1.
Experience from the outsourcing of the Cryogenic Operation & Maintenance at CERN / Ferrand, F (CERN) ; Gayet, P (CERN) ; Guillotin, N (CERN)
CERN operates and maintains several large cryogenic systems including those serving the LHC complex and its associated detectors, together with cryogenic Test Facilities and distribution services. Outsourcing of Operation and Maintenance to an industrial partner was implemented in 2016. [...]
IOP, 2020 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 755 (2020) 012084
In : Conference on Cryogenic Engineering and on International Cryogenic Materials, Hartford, Connecticut, 21 - 25 Jul 2019, pp.012084
2.
Outsourcing strategy and tendering methodology for the operation and maintenance of CERN’s cryogenic facilities / Serio, L (CERN) ; Bremer, J (CERN) ; Claudet, S (CERN) ; Delikaris, D (CERN) ; Ferlin, G (CERN) ; Ferrand, F (CERN) ; Pezzetti, M (CERN) ; Pirotte, O (CERN)
CERN operates and maintains the world largest cryogenic infrastructure ranging from ageing but well maintained installations feeding detectors, test facilities and general services, to the state-of-the-art cryogenic system serving the flagship LHC machine complex. A study was conducted and a methodology proposed to outsource to industry the operation and maintenance of the whole cryogenic infrastructure. [...]
2017 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 278 (2017) 012115 Fulltext: PDF;
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012115
3.
First operational experience with the HIE-Isolde helium cryogenic system including several RF cryo-modules / Guillotin, N (CERN) ; Dupont, T (CERN) ; Gayet, Ph (CERN) ; Pirotte, O (CERN)
The High Intensity and Energy ISOLDE (HIE-ISOLDE) upgrade project at CERN includes the deployment of new superconducting accelerating structures operated at 4.5 K (ultimately of six cryo-modules) installed in series, and the refurbishing of the helium cryo-plant previously used to cool the ALEPH magnet during the operation of the LEP accelerator from 1989 to 2000. The helium refrigerator is connected to a new cryogenic distribution line, supplying a 2000-liter storage dewar and six interconnecting valve boxes (i.e jumper boxes), one for each cryo-module. [...]
2017 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 278 (2017) 012121 Fulltext: PDF;
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012121
4.
Who Operates Cryogenics? / Gayet, P
CERN, 2001 Published version from CERN: PDF;
In : Workshop On Accelerator Operation, Villars-sur-Ollon, Switzerland, 28 Jan - 2 Feb 2001, pp.163-169 (CERN-2001-002)
5.
Operation of the cryogenic system for superconducting cavities in LEP / Barranco-Luque, M ; Claudet, S ; Gayet, P ; Solheim, N O ; Winkler, G
CERN-LHC-96-010-ACR.- Geneva : CERN, 1996 - 5 p. Report Access to fulltext document: PDF TIF;
In : 16th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, Kitakyushu, Japan, 20 - 24 May 1996, pp.103-106 - Please contact the library if you need to access this document.
6.
Cryogenic Operation and On-line Measurement of RF Losses in the SC Cavities of LEP2 / Winkler, G (CERN) ; Gayet, P (CERN) ; Güsewell, D (CERN) ; Titcomb, C (CERN)
1996 External link: Published version from JACoW
In : 16th Biennial Particle Accelerator Conference and International Conference on High-Energy Accelerators, Dallas, TX, USA, 1 - 5 May 1995, pp.2037-2039
7.
Process control system evolution for the LHC Cold Compressors at CERN / Bradu, B (CERN) ; Delprat, L (CERN) ; Duret, E (CERN) ; Ferlin, G (CERN) ; Ivens, B (CERN) ; Lefebvre, V (CERN) ; Pezzetti, M (CERN)
The Large Hadron Collider (LHC) operates using superfluid helium provided by eight large refrigeration units (2.4 kW @ 1.8 K each). These units supplied by specialized cryogenic industrial suppliers are composed of serial hydrodynamic cold compressors based on an axial-centrifugal impeller coupled with volumetric warm screw compressors. [...]
IOP, 2020 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 755 (2020) 012086
In : Conference on Cryogenic Engineering and on International Cryogenic Materials, Hartford, Connecticut, 21 - 25 Jul 2019, pp.012086
8.
Conclusions on 8 years operation of the LEP 4.5K refrigeration system at CERN / Bangert, N (CERN ; Air Products-Thompson, St. Genis-Pouilly) ; Claudet, S (CERN) ; Gayet, P (CERN) ; Sanmartí, M (CERN)
2002 - Published in : AIP Conf. Proc.: 613 (2002) , pp. 239-246 External link: Published version from AIP
In : Cryogenic Engineering Conference, Madison, WI, USA, 16 - 20 Jul 2001, pp.239-246
9.
Implementation of preventive diagnostics measures for the CERN cryogenic system / Cirillo, R (CERN) ; Gayet, Ph (CERN) ; Bradu, B (CERN)
The Cryogenic system is one of the most critical component of CERN accelerators and associated experiments. Any improvement in the maintenance plan leads to smoother operation procedures and improves the reliability of the facility as a whole. [...]
2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012165 Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012165
10.
Upgrade of the cryogenic infrastructure of SM18, CERN main test facility for superconducting magnets and RF cavities / Perin, A (CERN) ; Dhalla, F (CERN) ; Gayet, P (CERN) ; Serio, L (CERN)
SM18 is CERN main facility for testing superconducting accelerator magnets and superconducting RF cavities. Its cryogenic infrastructure will have to be significantly upgraded in the coming years, starting in 2019, to meet the testing requirements for the LHC High Luminosity project and for the R&D; program for superconducting magnets and RF equipment until 2023 and beyond. [...]
2017 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 278 (2017) 012112 Fulltext: PDF;
In : 2017 Cryogenic Engineering Conference and International Cryogenic Materials Conference, Madison, WI, USA, 9 - 13 Jul 2017, pp.012112

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