CERN Accelerating science


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Remote Qualification of HLS and WPS Systems in the LHC Tunnel / Mainaud Durand, Helene (CERN) ; Herty, Andreas (CERN) ; Marin, Antonio (CERN) ; Rousseau, Michel (CERN) ; Sosin, Mateusz (CERN)
The position of the inner triplets of the LHC is monitored using Hydrostatic Levelling System (HLS) and Wire Positioning System (WPS). [...]
- 2014. - 7 p.
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Crystal collimation for LHC / Mirarchi, Daniele
Future upgrades of the CERN Large Hadron Collider (LHC) may demand improved cleaning performance of its collimation system [...]
CERN-THESIS-2015-099 - 241 p.

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Measurement Report for the Four-Rod LHC Crab Cavity. Cold Tests held in July 2014 / Navarro Tapia, Maria (CERN) ; Burt, G (The Cockcroft Institute, Lancaster University, Daresbury, United Kingdom) ; Calaga, Rama (CERN) ; Hernandez Chahin, Karim Gibran (Universidad de Guanajuato (MX)) ; Junginger, Tobias (CERN) ; Macpherson, Alick (CERN) ; Torres-Sanchez, Roberto (CERN)
The performance of the four-rod cavity prototype considered for the HL-LHC upgrade has already been assessed at CERN at cryogenic temperatures three times in the last two years [1, 2, 3]. [...]
- 2015. - 15 p.
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Conceptual design of the orbit correctors for D2 and Q4 / Rysti, J (CERN) ; Todesco, E (CERN)
In the luminosity upgrade of the Large Hadron Collider, many dipole, quadrupole, and corrector magnets around the ATLAS and CMS detectors are replaced with larger aperture magnets. [...]
- 2015. - 17 p.
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A journey to the heart of the LHC / Holzer, Bernhard (CERN) ; Alemany-Fernandez, Reyes (CERN)
This chapter provides a summary of the most important design parameters of the LHC, and it gives an introduction to the layout and the optics for the different beam energies. Based on this, the luminosity reach of LHC is discussed, together with the most important performance limits encountered during Run 1, like space charge in the injectors, beam-beam interaction effects and the electron-cloud effect. [...]
In : The Large Hadron Collider, pp.27-56

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Luminosity Monitoring in ATLAS with MPX Detectors / Asbah, Nedaa (Montreal U.) /ATLAS ; Medipix2
The ATLAS-MPX detectors are based on the Medipix2 silicon devices designed by CERN for the detection of multiple types of radiation. Sixteen such detectors were successfully operated in the ATLAS detector at the LHC and collected data independently of the ATLAS data-recording chain from 2008 to 2013. [...]
2014 - 10 p. - Published in : 10.1142/9789814603164_0048
In : 14th ICATPP Conference on Astroparticle, Particle, Space Physics and Detectors for Physics Applications, Como, Italy, 23 - 27 Sep 2013, pp.317-326

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Study of a 5 T Research Dipole Insert-Magnet using an Anisotropic ReBCO Roebel Cable / van Nugteren, J (CERN) ; Kirby, GA (CERN) ; de Rijk, G (CERN) ; Rossi, L (CERN) ; ten Kate, HHJ (CERN) ; Dhall´e, MMJ (TWENTE)
A design study is presented for the coil layout of the EUCARD-2 Five Tesla HTS Research (FeaTHeR) magnet. [...]
- 2015. - 6 p.
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Study of Quench Protection for the Nb3Sn Low-β Quadrupole for the LHC Luminosity Upgrade (HiLumi-LHC) / Todesco, E (CERN) ; Marinozzi, V (University of Milano and INFN-LASA) ; Bellomo, G (University of Milano and INFN-LASA) ; Sorbi, M (University of Milano and INFN-LASA) ; Ambrosio, G (Fermi National Accelerator Laboratory) ; Chlachidze, G (Fermi National Accelerator Laboratory) ; Felice, H (LBNL) ; Marchevsky, M (LBNL) ; Salmi, T (Tampere University of Technology)
The HiLumi program is aiming to develop and build new Nb3Sn, high-field (12 T) and large aperture (150 mm) superconducting quadrupoles, which will be inserted in the LHC interaction regions and will provide the final focusing of the beam, in the program of the luminosity upgrade. [...]
- 2015. - 6 p.
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Design, Assembly, and Commissioning of a Cryogenic DC Current Transformer Designed for Measuring Currents of up to 80 kA / Montenero, G (CERN) ; Ballarino, A (CERN) ; Bottura, L (CERN) ; Arpaia, P (Dipartimento di Ingegneria, Università del Sannio, 82100 Benevento, Italy)
A new cryogenic dc current transformer (Cryo-DCCT) has recently been designed and assembled at CERN. [...]
- 2015. - 7 p.
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Quench Analysis of High Current Density Nb3Sn Conductors in Racetrack Coil Configuration / Bajas, H (CERN) ; Bajko, M (CERN) ; Bordini, B (CERN) ; Bottura, L (CERN) ; Izquierdo Bermudez, S (CERN) ; Feuvrier, J (CERN) ; Chiuchiolo, A (CERN) ; Perez, JC (CERN) ; Willering, G (CERN)
The luminosity upgrade of the Large Hadron Collider (HL-LHC) requires the development of new type of superconducting cables based on advanced Nb3Sn strands. [...]
- 2015. - 6 p.
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