CERN Accelerating science

All CERN Accelerators documents

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2020-04-06
17:28
Transverse mode-coupling instability in the presence of detuning impedance / Metral, Elias (CERN) ; Buffat, Xavier (CERN) ; Rumolo, Giovanni (CERN)
In non-axisymmetric beam pipes, a detuning impedance is present in addition to the usual driving impedance. [...]
CERN-ACC-NOTE-2020-0019.
- 2020. - 4 p.
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2020-04-04
12:59
Simulation of Synchrotron Radiation for the CERN Highest-Energy Accelerators / Guillermo Canton, Gerardo
In circular accelerators at energies in the order of TeV, synchrotron radiation (SR) is very high, even in a hadron beam [...]
CERN-THESIS-2018-468 - 159 p.

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2020-04-03
23:06
Simulations of electron-cloud heat load for the cold arcs of the CERN Large Hadron Collider and comparison with measured data / Maury Cuna, Georfrey Humberto Israel
The CERN Large Hadron Collider (LHC) has become a very successful discovery machine [...]
CERN-THESIS-2013-496 - 57 p.

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2020-04-02
16:53
Design, Construction and Commissioning of the Proximity Cryogenics Systems Serving Two Large-Scale Prototypes of the Future DUNE Neutrino Detector / Creus, Joaquim (CERN) ; Bremer, J (CERN) ; Chalifour, M (CERN) ; Fabre, C (CERN) ; Montanari, D (Fermilab)
In the context of the Neutrino Platform, CERN has designed, constructed, and commissioned the proximity cryogenics systems that serve two CERN based large-scale prototypes of future neutrino detectors. Each of these prototypes features a high voltage time projection chamber placed inside a membrane cryostat being submerged in 600m3 of liquid argon at about 1.0 bar. [...]
FERMILAB-CONF-19-187-LBNF.- IOP, 2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012110 Fulltext: fermilab-conf-19-187-lbnf - PDF; adf25bc2568e2a14202f67adec68428f - PDF; openaccess_Creus_2019_IOP_Conf._Ser.__Mater._Sci._Eng._502_012110 - PDF; 2ea221cb528c9e582297bfa262c09052 - PDF; External link: Fermilab Library Server (fulltext available)
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012110

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2020-04-01
11:47
Quench Protection Heaters FE Analysis and Thermal Conductivity Measurements of Nb3Sn Cables for High-Field Accelerator Magnets / Barbagallo, Carmelo
The Large Hadron Collider (LHC), the world’s largest and most powerful particle accelerator, represents a research instrument at CERN to improve our understanding of matter and the Universe [...]
CERN-THESIS-2020-019 - 153 p.

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2020-04-01
07:09
Observation of strong reduction of multiple scattering for channeled particles in bent crystals / Scandale, W (CERN) ; Arduini, G (CERN) ; Cerutti, F (CERN) ; Garattini, M ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) ; Redaelli, S (CERN) et al.
Strong reduction of multiple scattering for channeled particles has been observed in an experiment on the deflection of a 180 GeV/c π+ -meson beam by bent silicon crystals. The RMS deflections due to multiple scattering for the channeled particles were about six times smaller than for non-channeled ones. [...]
2020 - 4 p. - Published in : Phys. Lett. B 804 (2020) 135396 Article from SCOAP3: PDF; Fulltext from publisher: PDF;

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2020-04-01
07:09
Radiation Hardness of the Siemens SIPART intelligent valve positioner / Casas, Juan (CERN) ; Quetsch, Jean Marc (CERN)
About 1400 Siemens SIPART PS2 intelligent valve positioners are installed in the LHC accelerator. They were selected assuming that their non-electronic parts are intrinsically radiation hard. [...]
IOP, 2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012196 Fulltext: 10.1088_1757-899X_502_1_012196 - PDF; 90746a4e6d73885c66a97beb7da4fa0c - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012196

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2020-04-01
07:09
Preliminary Conceptual design of FCC-hh cryoplants: Linde evaluation / Millet, Francois (CEA INAC, Grenoble) ; Tavian, L (CERN) ; Cardella, U (Linde Kryotechnik, Pfungen) ; Amstutz, O (Linde Kryotechnik, Pfungen) ; Selva, P (Linde Kryotechnik, Pfungen) ; Kuendig, A (Unlisted, CH)
In the framework of an international collaboration, a 100 TeV hadron collider in a 100-km long tunnel is under study as a future circular collider beyond LHC at CERN. Its design is based on 16-T superconducting magnets cooled at 1.9 K by 10 cryoplants with a unit equivalent capacity of 100 kW at 4.5 K, up to 4 times larger than the present state-of-the-art. [...]
IOP, 2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012131 Fulltext: 10.1088_1757-899X_502_1_012131 - PDF; 33d33665c82fa0dd2f9112ba705c8488 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012131

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2020-04-01
07:09
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: ed5b7a2236d08af6573d0255c0581521 - PDF; 10.1088_1757-899X_502_1_012126 - 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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2020-04-01
07:09
Heat load profile estimates on LHC beam screens by thermal transient analysis / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Delikaris, D (CERN) ; Garion, C (CERN) ; Tavian, L (CERN)
The LHC beams are producing significant dynamic heat loads on the LHC cryogenic system. These heat loads are deposited on beam screens, where they must be properly extracted with dedicated cooling loops between 4.6 K and 20 K. [...]
IOP, 2019 - 7 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012116 Fulltext: 10.1088_1757-899X_502_1_012116 - PDF; 814d76eab0f03690fb69b26083cea08d - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012116

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