CERN Accelerating science

All CERN Accelerators documents

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2018-01-12
09:56
Note Technique : Un premier bilan de fonctionnement de la pompe à chaleur du foyer visiteurs / Scaramelli, A (CERN)
23 Oct 1984.

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2018-01-12
09:42
Le fonctionnement de la pompe à chaleur du foyer visiteurs pendant l'hiver 1984-1985 / Lévrier, F (CERN) ; Trébulle, M
3 Apr 1985. - 21 p.

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2018-01-12
07:55
Future Colliders for Particle Physics - "Big and Small" / Zimmermann, Frank (CERN)
Discoveries at high-energy particle colliders have established the standard model of particle physics. [...]
arXiv:1801.03170.
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Preprint

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2018-01-12
06:31
Applied metrology in the production of superconducting model magnets for particle accelerators / Ferradas Troitino, Jose (CERN) ; Bestmann, Patrick (CERN) ; Bourcey, Nicolas (CERN) ; Carlon Zurita, Alejandro (CERN) ; Cavanna, Eugenio (ASG Supercond., Genova) ; Ferracin, Paolo (CERN) ; Ferradas Troitino, Salvador (CERN) ; Holik, Eddie Frank (Fermilab) ; Izquierdo Bermudez, Susana (CERN) ; Lackner, Friedrich (CERN) et al.
The production of superconducting magnets for particle accelerators involves high precision assemblies and tight tolerances, in order to achieve the requirements for their appropriate performance. [...]
2018. - 1 p.
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2018-01-12
06:31
Residual strain in the Nb$_3$Sn 11 T dipole magnet coils for HL-LHC / Scheuerlein, C (CERN) ; Di Michiel, M (ESRF, Grenoble) ; Hofmann, M (Forschungsreaktor Munich) ; Lorentzon, M (CERN) ; Lackner, F (CERN) ; Flükiger, R (CERN) ; Savary, F (CERN) ; Bottura, L (CERN)
Nb3Sn magnets are presently built for the HL-LHC accelerator upgrade and are developed for the Future Circular Collider study. [...]
2017.

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2018-01-11
06:33
Fabrication of the 7.3 m long coils for the prototype of MQXFB, the Nb3Sn low-b quadrupole magnet for the HiLumi LHC / Lackner, F (CERN) ; Ferracin, P (CERN) ; Ambrosio, G (Fermilab) ; Todesco, E (CERN) ; Duret, M (CERN) ; Triquet, S (CERN) ; Pozzobon, M (CERN) ; Luzieux, S (CERN) ; Perez, J C (CERN) ; Scheuerlein, C (CERN) et al.
The High luminosity LHC upgrade target is to increase the integrated luminosity by a factor 10, resulting in an integrated luminosity of 3000 fb-1. [...]
FERMILAB-PUB-17-376-TD.
- 2017. - 5 p.
FERMILABPUB - Fulltext

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2018-01-10
17:38
BE Department Annual Report 2016 / Collier, Paul (CERN) ; Arduini, Gianluigi (CERN) ; Billen, Ronny (CERN) ; Hatziangeli, Eugenia (CERN) ; Jensen, Erk (CERN) ; Jones, Rhodri (CERN) ; Lamont, Mike (CERN) ; Mackney, Anna (CERN) ; Sollander, Peter (CERN) ; Steerenberg, Rende (CERN)
The Beams Department hosts the Groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the whole CERN accelerator complex. [...]
CERN-ACC-2018-0001.
- 2017. - 105 p.
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2018-01-10
08:08
Nb3Sn wire shape and cross sectional area inhomogeneity in Rutherford cables / Kelly, U. (Fraunhofer Inst., Kaiserslautern) ; Richter, S. (Fraunhofer Inst., Kaiserslautern) ; Redenbach, C. (Fraunhofer Inst., Kaiserslautern) ; Schladitz, K. (Fraunhofer Inst., Kaiserslautern) ; Scheuerlein, C. (CERN) ; Wolf, F. (CERN) ; Ebermann, P. (CERN) ; Lackner, F. (CERN) ; Schoerling, D. (CERN) ; Meinel, D. (BAM, Berlin)
During Rutherford cable production the wires are plastically deformed and their initially round shape is distorted. [...]
arXiv:1711.09421.
- 6 p.
Preprint

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2018-01-10
06:52
Coupling of Magneto-Thermal and Mechanical Superconducting Magnet Models by Means of Mesh-Based Interpolation / Maciejewski, Michał (CERN) ; Bayrasy, Pascal ; Wolf, Klaus ; Wilczek, Michał ; Auchmann, Bernhard ; Griesemer, Tina ; Bortot, Lorenzo (CERN) ; Prioli, Marco (CERN) ; Navarro, Alejandro Manuel Fernandez ; Schöps, Sebastian et al.
In this paper we present an algorithm for the coupling of magneto-thermal and mechanical finite element models representing superconducting accelerator magnets. The mechanical models are used during the design of the mechanical structure as well as the optimization of the magnetic field quality under nominal conditions. [...]
arXiv:1712.10191.- 2017 - 5 p. - Published in : 10.1109/TASC.2017.2786721 Preprint: PDF; External links: 00004 Comparison of the Lorentz force transfer at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.; 00000 Scheme of the one-way information exchange between magneto-thermal (red) and mechanical (black) models.; 00005 Equivalent stress in the coil at $t=14~\si{\milli\second}$.; 00001 Schematic of the standalone circuit with an 11 T dipole magnet powered by a power converter (PC) with a crowbar (S$\mathsf{_{CR}}$). Magnet is protected by a CLIQ system modelled as a charged capacitor bank and a thyristor triggered at $t=0~\si{\second}$.; 00002 Time evolution of the current discharge in two poles of a magnet following the CLIQ triggering. Dashed lines indicate time points for which results of mechanical analysis are reported.; 00003 Temperature comparison at $t=14~\si{\milli\second}$ between COMSOL (left) and ANSYS (right) models.

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2018-01-09
10:40
Head-On Beam-Beam Interactions in High-Energy Hadron Colliders. GPU-Powered Modelling of Nonlinear Effects / Furuseth, Sondre
The performance of high-energy circular hadron colliders, as the Large Hadron Collider, is limited by beam-beam interactions [...]
CERN-THESIS-2017-279 - https://brage.bibsys.no/xmlui/handle/11250/2460617 : NTNU, 2017-08-15. - 119 p.

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