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Chapter 9: Cryogenics for the HL-LHC
/ Claudet, Serge (CERN) ; Ferlin, Gerard (CERN) ; Monneret, Emmanuel (CERN) ; Perin, Antonio (CERN) ; Pirotte, Olivier (CERN) ; Sisti, M (CERN) ; Van Weelderen, Rob (CERN)
The upgrade of the cryogenics for the HL-LHC will consist of the following:
- The design and installation of two new cryogenic plants at P1 and P5 for high luminosity insertions. This upgrade will be based on a new sectorization scheme aimed at separating the cooling of the magnets in these insertion regions from the arc magnets and considering the newt feedboxes and superconducting links located in underground infrastructures.
- The design and installation of a new cryogenic distribution lines (QXL) at P1 and P5 in the LHC tunnel and in a new underground service galleries.
- The upgrade of the existing cryogenic plant (QSRA and QURA) cooling the LHC sector 3-4 located at P4.
- The cryogenic design support for superconducting devices, such as magnets, crab cavities, superconducting links, and the hollow electron lenses.
Some other options such as new cryogenic circuits at P7 for the HTS links and displaced current feedboxes or a new cryoplant in P4 have been discarded..
2020 - 10 p.
- Published in : 10.23731/CYRM-2020-0010.189
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report, pp.189-198
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ebook
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Cryogenic Upgrade of the Helium Central Liquefier and Superconducting Cable & Wire Test Facilities at CERN
/ Pirotte, O (CERN) ; Lees, A (CERN) ; Barbe, T (CERN) ; Dupont, T (CERN) ; Pezzetti, M (CERN)
The demand for liquid helium (LHe) for users at CERN without dedicated cryogenic infrastructure is set to increase due to future projects and experiments in the Antiproton Decelerator. LHe is supplied to the users by means of 500 liter dewars filled by the central liquefier (B165) that comprises a cryogenic plant of 400 W @ 4.5 K. [...]
IOP, 2020 - 8 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 755 (2020) 012146
External link: Published fulltext
In : Conference on Cryogenic Engineering and on International Cryogenic Materials, Hartford, Connecticut, 21 - 25 Jul 2019, pp.012146
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First operational experience of the upgraded cryogenic infrastructure of the vertical magnet test facility in the SM18 hall, including HFM and cluster D test stations.
/ Benda, V (CERN) ; Lees, A (CERN) ; Pirotte, O (CERN) ; Craen, A Vande (CERN) ; Pezzetti, M (CERN) ; Lamboy, J P (CERN) ; Lefebvre, V (CERN) ; Bajko, M (CERN) ; Giloux, C (CERN)
As part of the R&D; program for HL-LHC, the future upgrade of the Large Hadron Collider (LHC), the vertical magnet test facility in the SM18 cryogenic test hall at CERN has seen significant development. Since the installation of HFM and Cluster D cryogenic test stations in 2017, the facility is comprised of five vertical test cryostats of various sizes operating at either 1.9 K or 4.2 K. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012126
Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012126
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Thermal performance of the new superfluid helium vertical test cryostats for magnet tests at CERN
/ Vande Craen, Arnaud (CERN) ; Bajko, M (CERN) ; Benda, V (CERN) ; Deschamps, J-B (CERN) ; Giloux, C (CERN) ; Lees, A (CERN) ; Parma, V (CERN) ; Pasdeloup, F (CERN) ; Pirotte, O (CERN)
In the frame of the R&D; program of the HL-LHC, the upgrade of the Large Hadron Collider (LHC), CERN augmented its test facility with two new large-scale vertical test stations for superconducting magnet testing. The cryostats composing the core of these test stations share design features but are of different dimensions: one allows testing magnets up to 1.5 m diameter, 2.5 m long for a maximum weight of 15 t, while the other can accommodate magnets up to 0.9 m diameter, and 5.5 m long for a maximum weight of 18 t. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012081
Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012081
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A local sensor for joint temperature and velocity measurements in turbulent flows
/ Salort, Julien (ENS, Lyon, Lab. Phys.) ; Rusaouën, Éléonore (Neel Lab, Grenoble) ; Robert, Laurent (FEMTO-ST) ; du Puits, Ronald (Ilmenau Tech. U.) ; Loesch, Alice (Ilmenau Tech. U.) ; Pirotte, Olivier (CERN) ; Roche, Philippe-E (Neel Lab, Grenoble) ; Castaing, Bernard (ENS, Lyon, Lab. Phys. ; Neel Lab, Grenoble) ; Chilla, Francesca (ENS, Lyon, Lab. Phys.)
We present the principle for a micro-sensor aimed at measuring local correlations of turbulent velocity and temperature. The operating principle is versatile and can be adapted for various types of flow. [...]
2018
- Published in : Rev. Sci. Instrum. 89 (2018) 015005
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7.
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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
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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
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Status of Radioactive Ion Beam Post-Acceleration at CERN-ISOLDE
/ Kadi, Yacine (CERN) ; Andreazza, William (CERN) ; Bauche, Jeremie (CERN) ; Behrens, Antje (CERN) ; Bernardes, Ana (CERN) ; Ferreira Somoza, Jose (CERN) ; Formenti, Fabio (CERN) ; Fraser, Matthew (CERN) ; Garcia Borge, Maria (CERN) ; Guillotin, Nicolas (CERN) et al.
The HIE-ISOLDE project* (High Intensity and Energy ISOLDE) reached an important milestone in September 2016 when the first physics run was carried out with radioactive beams at 6 MV/m. This is the first stage in the upgrade of the REX post-accelerator, whereby the energy of the radioactive ion beams was increased from 3 to 5.5 MeV per nucleon. [...]
CERN-ACC-2017-247.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEOAA2
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEOAA2
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10.
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Superconducting instrumentation for high Reynolds turbulence experiments with low temperature gaseous helium
/ Pietropinto, S (Grenoble, CRTBT) ; Poulain, C (LEGI, Grenoble) ; Baudet, C (LEGI, Grenoble) ; Castaing, B (Lyon, Ecole Normale Superieure) ; Chabaud, B (Grenoble, CRTBT) ; Gagne, Y (LEGI, Grenoble) ; Hébral, B (Grenoble, CRTBT) ; Ladam, Y (Lyon, Ecole Normale Superieure) ; Lebrun, P (CERN) ; Pirotte, O (CERN) et al.
Turbulence is of common experience and of high interest for industrial applications, despite its physical grounds is still not understood. Cryogenic gaseous helium gives access to extremely high Reynolds numbers (Re). [...]
2003 - 5 p.
- Published in : Physica C 386 (2003) 512-516
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