CERN Accelerating science

All CERN Accelerators documents

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2019-03-19
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LEP celebration : 9 October 2000
Geneva : CERN, 2000 - 1 VHS. LEPFest

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2019-03-19
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Towards Future Circular Colliders / Tomas, Rogelio (CERN) ; Benedikt, Michael (CERN) ; Hofer, Michael (CERN) ; Keintzel, Jacqueline (CERN) ; Zimmermann, Frank (CERN) /FCC collaboration
The international Future Circular Collider (FCC) study, launched in 2014, is finalizing a multi-volume conceptual design report. The FCC develops high-energy circular collider options based on a new 100 km tunnel. [...]
SISSA, 2018 - 7 p. - Published in : PoS LHCP2018 (2018) 268 Fulltext: PDF; External link: PoS server
In : Sixth Annual Conference on Large Hadron Collider Physics, Bologna, Italy, 4 - 9 Jun 2018, pp.268

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A Smart Framework for the Availability and Reliability Assessment and Management of Accelerators Technical Facilities / Serio, Luigi (CERN) ; Antonello, Federico (Milan, Polytech.) ; Baraldi, Piero (Milan, Polytech.) ; Castellano, Andrea (CERN ; Milan, Polytech.) ; Gentile, Ugo (CERN) ; Zio, Enrico (Milan, Polytech.)
CERN operates and maintains a large and complex technical infrastructure that serves the accelerator complex and experiments detectors. A performance assessment and enhancement framework based on data mining, artificial intelligence and machine-learning algorithms is under development with the objective of structuring, collecting and analysing the operation and failure data of the systems and equipment, to guide the identification and implementation of adequate corrective, preventive and consolidation interventions. [...]
2018 - 4 p. - Published in : (2018) , pp. WEPAF079
- Published in : J. Phys. : Conf. Ser.: 1067 (2018) , no. 7, pp. 072029 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF079

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Machine Learning Applied at the LHC for Beam Loss Pattern Classification / Valentino, Gianluca (U. Malta) ; Salvachua, Belen (CERN)
Beam losses at the LHC are constantly monitored because they can heavily impact the performance of the machine. One of the highest risks is to quench the LHC superconducting magnets in the presence of losses leading to a long machine downtime in order to recover cryogenic conditions. [...]
2018 - 4 p. - Published in : (2018) , pp. WEPAF078
- Published in : J. Phys. : Conf. Ser.: 1067 (2018) , no. 7, pp. 072036 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF078

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Performance Evaluation of Linac4 During the Reliability Run / Rey Orozko, Odei (CERN) ; Apollonio, Andrea (CERN) ; Erhard, Silvia (CERN) ; Guidoboni, Greta (CERN) ; Mikulec, Bettina (CERN) ; Uythoven, Jan (CERN)
Linac4 will replace Linac2 as the first element in the CERN proton injector chain from 2020 onwards, following the second LHC long shutdown (LS2). With more than three times higher energy and number of compo-nents than Linac2, beam availability is one of the main challenges of Linac4. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF077 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF077

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Availability Studies Comparing Drive Beam and Klystron Options for the Compact Linear Collider / Rey Orozco, Odei (CERN) ; Doebert, Steffen (CERN) ; Jonker, Michael (CERN)
The initial proposal for the Compact Linear Collider (CLIC) is based on a two beam-scheme to accelerate the main colliding beams. For low collision energies, the main beam could also be accelerated by powering the accelerating structures with klystrons instead of the two-beam scheme. [...]
2018 - 3 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF076 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF076

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Availability Allocation to Particle Accelerators Subsystems by Complexity Criteria / Rey Orozco, Odei (CERN) ; Apollonio, Andrea (CERN) ; Jonker, Michael (CERN) ; Uythoven, Jan (CERN)
In the early design stages of an accelerator, an effective allocation method is needed to translate an overall accelerator availability goal into availability requirements for its subsystems. During the allocation process, many factors are considered to obtain so-called ‘complexity weights', which are at the basis of the system availability allocation. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF075 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF075

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Evaluation of Frequency Scanning Interferometer Performances for Surveying, Alignment and Monitoring of Physics Instrumentation / Gayde, Jean-Christophe (CERN) ; Kamugasa, Solomon (ETH, Zurich (main))
During the last three years, the performance of Frequency Scanning Interferometry, accurate to a few micrometres, has been evaluated at CERN in the frame of the PACMAN project. Improvements have been studied and tested to make it better suited for typical alignment and survey conditions in accelerators and experiments. [...]
2018 - 3 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF069 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF069

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Frequency Scanning Interferometry as New Solution for on-Line Monitoring Inside a Cryostat for the HL-LHC project / Mainaud Durand, Helene (CERN) ; Dijoud, Thibault (CERN) ; Duquenne, Mathieu (CERN ; Unlisted, FR) ; Gayde, Jean-Christophe (CERN) ; Micolon, Frederic (CERN) ; Rude, Vivien (CERN ; Unlisted, FR) ; Sosin, Mateusz (CERN)
For the HL-LHC project, the cryostats of the key components will be equipped permanently with an on-line position monitoring system based on Frequency Scanning Interferometry (FSI). Such a system, based on absolute distance measurement, will determine the position of the inner triplet cold masses w.r.t. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF068 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF068

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Alignment and Monitoring Systems for Accelerators and Experiments Based on BCAM - First Results and Benefits of Systems Developed for ATLAS, LHCb and HIE-ISOLDE / Gayde, Jean-Christophe (CERN) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Di Girolamo, Beniamino (CERN) ; Kadi, Yacine (CERN) ; Kautzmann, Guillaume (CERN) ; Klumb, Francis (CERN) ; Lindner, Rolf (CERN) ; Mergelkuhl, Dirk (CERN) ; Pontecorvo, Ludovico (CERN) ; Raymond, Michel (CERN) et al.
In the last few years alignment and monitoring systems based on BCAM* cameras active sensors, or their HBCAM evolution, have been developed at the request of the Technical Coordination of LHC experiments and HIE-ISOLDE facility Project Leader. ADEPO (ATLAS DEtector POsition) has been designed to speed up the precise closure - 0.3 mm - of large detector parts representing in total ~2500 tons. [...]
2018 - 3 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF067 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF067

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