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CERN Document Server 2,050 ჩანაწერია ნაპოვნი  1 - 10შემდეგიდასასრული  ჩანაწერთან გადასვლა: ძიებას დასჭირდა 0.43 წამი. 
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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: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012116
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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Beam induced heat load instrumentation installed in LHC during the Long Shutdown 2 / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Casas-Cubillos, J (CERN) ; Delikaris, D (CERN) ; Deschamps, J B (CERN) ; Le Naour, S (CERN) ; Pezzetti, M (CERN) ; Tavian, L (CERN) ; Tovar, A (CERN) ; Sisti, M (CERN) et al.
During the second run of the Large Hadron Collider (LHC) between 2015 and 2018, significant beam induced heat loads have been observed on the beam screens circuits impacting the cryogenic system capacity, mainly due to the electron clouds generated by the beams. To validate these measurements and to obtain precise heat load assessments and comparison with preliminary calculations based on existing hardware equipment at selected locations, it was decided to add new cryogenic instrumentation around the machine. [...]
2022 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012043 Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012043
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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LHC Upgrades in preparation of Run 3 / Arduini, G (CERN) ; Baglin, V (CERN) ; Bartosik, H (CERN) ; Bottura, L (CERN) ; Bracco, C (CERN) ; Bradu, B (CERN) ; Bregliozzi, G (CERN) ; Brodzinski, K (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) et al.
The Large Hadron Collider (LHC) Long Shutdown 2(2019–2021), following LHC Run 2, was primarily dedicated to theupgrade of the LHC Injectors but it included also a significantamount of activities aimed at consolidation of the LHC machinecomponents, removal of known limitations and initial upgrades inview of the High-Luminosity LHC (HL-LHC) to favour the intensityramp-up during Run 3 (2022–2025). An overview of the majormodifications to the accelerator and its systems is followed by asummary of the results of the superconducting magnet trainingcampaign to increase the LHC operation energy beyond the maximumvalue of 6.5 TeV reached during Run 2. [...]
2024 - 138 p. - Published in : JINST 19 (2024) P05061 Fulltext: PDF;
In : The Large Hadron Collider and The Experiments for Run 3, pp.P05061
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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Adaptation of the Cryogenic System Capacity for the LHC Dynamic Heat Load - Operational Experience / Brodzinski, Krzysztof (CERN) ; Bradu, Benjamin (CERN) ; Claudet, Serge (CERN) ; Delikaris, Dimitri (CERN) ; Delprat, Laurent (CERN) ; Ferlin, Gerard (CERN)
During second LHC physics operation period (Run2), between 2015 and 2018, the accelerator operation modes and beam parameters have been adapted thus allowing significantly improved integrated luminosity production. Increased energy, intensity and adapted beam operation schemes with 25 ns of inter-bunches spacing have an essential influence on the dynamic heat load generation with direct impact on the cryogenic cooling system. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPMF073 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPMF073
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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Cryogenic management of the LHC run 2 dynamic heat loads / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Ferlin, G (CERN)
During the LHC (Large Hadron Collider) Run 2 between 2015 and 2018 inclusive, significant dynamic heat loads have been generated and successfully managed by the LHC cryogenic system. These dynamic heat loads are generated by several physical phenomena occurring at two temperature levels and with different time constants. [...]
IOP, 2020 - 8 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 755 (2020) 012099 External link: Published fulltext
In : Conference on Cryogenic Engineering and on International Cryogenic Materials, Hartford, Connecticut, 21 - 25 Jul 2019, pp.012099
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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First Measurements of Beam-Induced Heating on the LHC Cryogenic System / Brodzinski, K (CERN) ; Tavian, L (CERN)
The Large Hadron Collider (LHC) under operation at CERN is colliding 3.5 TeV hadron beams which are gradually increased in intensity and luminosity. [...]
CERN-ATS-2013-009. - 2013. - 5 p.
Full text
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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Heat loads and cryogenics for HE-LHC / Delikaris, D. (CERN) ; Tavian, L. (CERN)
We report preliminary considerations on cryogenics for a higher-energy LHC ("HE-LHC") with about 16.5 TeV beam energy and 20-T dipole magnets. In particular we sketch the heat loads scaled on the proposed principal beam parameters and size the cryogenic plants for different operating temperature of the beam screens..
arXiv:1108.1870.- CERN, 2011 - 4 p. - Published in : CERN Yellow Report CERN-2011-003, pp. 75-78 Fulltext: PDF; Published version from CERN: PDF; External link: Preprint
In : EuCARD-AccNet-EuroLumi Workshop : The High-Energy Large Hadron Collider, pp.75-78
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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How does a cryogenic system cope with e-cloud induced heat load? / Bradu, B (CERN) ; Brodzinski, K (CERN) ; Ferlin, G (CERN)
Since 2012, the e-clouds produced by LHC beams are inducing significant dynamic heat loads on the LHC cryogenic system. These additional heat loads are deposited on beam screens where they must be properly extracted by the cryogenic system between 4.6 K and 20 K in order to ensure a stable beam vacuum and a good thermal barrier for superconducting magnets operated at 1.9 K. [...]
2020 - 9 p. Fulltext from publisher: PDF;
In : ECLOUD’18: Proceedings of the Joint INFN-CERN-ARIES Workshop on Electron-Cloud Effects, La Biodola, Isola d'Elba, Italy, 3 - 7 Jun 2018, pp.73-82 (CERN-2020-007)
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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Beam screen cryogenic control improvements for the LHC run 2 / Bradu, Benjamin (CERN) ; Rogez, Edouard (CERN) ; Blanco Vinuela, Enrique (CERN) ; Ferlin, Gerard (CERN) ; Tovar-Gonzalez, Antonio (CERN)
This paper presents the improvements made on the cryogenic control system for the LHC beam screens. The regulation objective is to maintain an acceptable temperature range around 20 K which simultaneously ensures a good LHC beam vacuum and limits cryogenic heat loads. [...]
CERN-ACC-2016-0106.- Geneva : CERN, 2017 - 9 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 171 (2017) 012128 Fulltext: PDF;
In : 26th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2016, New Delhi, India, 7 - 11 Mar 2016, pp.012128
დეტალური ჩანაწერი - მსგავსი ჩანაწერები
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LHC cryogenics – Run2 (2015) summary and perspectives / Brodzinski, K (CERN) ; Claudet, S (CERN) ; Delikaris, D (CERN) ; Delprat, L (CERN) ; Ferlin, G (CERN) ; Rogez, E (CERN) ; Tavian, L (CERN)
After LS1 the LHC cryogenic installation was progressively restarted from May 2014. Cool down, multiple tests and qualifications of the machine components lasts for 10 months. [...]
Geneva : CERN, 2016 - 6 p. - Published in : (2016) , pp. 33-38 Fulltext: PDF;
In : 6th Evian Workshop on LHC beam operation, Evian Les Bains, France, 15 - 17 Dec 2015, pp.33-38
დეტალური ჩანაწერი - მსგავსი ჩანაწერები

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