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CERN Document Server 2,047 records found  1 - 10nextend  jump to record: Search took 0.39 seconds. 
1.
(100)
Heat Extraction From the LHC Main Dipole, Main Quadrupole, and MQXA Superconducting Cables / Granieri, Pier Paolo (CERN) ; Santandrea, Dario (CERN) ; Koettig, Torsten (CERN) ; van Weelderen, Rob (CERN)
The forthcoming operation of the CERN Large Hadron Collider (LHC) at 13-14 TeV requires a deep understanding of the heat transfer mechanisms in the most critical superconducting magnets. This is aimed at determining their steady-state quench limits and constitutes an input to compute the magnets stability in transient conditions as well, to prevent beam induced quenches. [...]
2015 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 25 (2015) 4002005
In : Applied Superconductivity Conference 2014, Charlotte, NC, USA, 10 - 15 Aug 2014, pp.4002005
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2.
(91)
Comparative Study of Heat Transfer from Nb-Ti and Nb$_3$Sn coils to He II / La China, M (CERN) ; Tommasini, D (CERN)
In superconducting magnets, the energy deposited or generated in the coil must be evacuated to prevent temperature rise and consequent transition of the superconductor to the resistive state. The main barrier to heat extraction is represented by the electric insulation wrapped around superconducting cables. [...]
CERN-AT-2008-022.- Geneva : CERN, 2008 - 11 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 11 (2008) 082401 APS Published version, local copy: PDF; Fulltext: PDF;
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3.
(86)
Cable Insulation Scheme to Improve Heat Transfer to Superfluid Helium in Nb-Ti Accelerator Magnets / La China, M (CERN) ; Tommasini, D (CERN)
In superconducting magnets operating at high heat loads as the ones for interaction region of particle colliders or for fast cycling synchrotrons, the limited heat transfer capability of state-of-the-art electrical insulation may constitute a heavy limitation to performance. In the LHC main magnets, Nb-Ti epoxy-free insulation, composed of polyimide tapes, has proved to be permeable to superfluid helium, however the heat flux is rather limited. [...]
CERN-AT-2008-005.- Geneva : CERN, 2008 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 18 (2008) 1285-1288 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.1285-1288
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4.
(78)
A new cable insulation scheme improving heat transfer in nb-ti superconducting accelerator magnets / Tommasini, D (CERN) ; Richter, D (CERN)
The next applications of superconducting magnets for interaction regions of particle colliders or for fast cycled accelerators require dealing with large heat fluxes generated or deposited in the coils. Last year [1] we had investigated the theoretical potential for a large improvement of heat transfer of state of the art Nb-Ti cable insulations in superfluid helium, such as the one used for the LHC superconducting magnets [...]
CERN-AT-2008-012.- Geneva : CERN, 2008 - 4 p. Fulltext: PDF; External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.WEPD027
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5.
(73)
LHC IR Upgrade Nb-Ti, 120mm Aperture Model Quadrupole Test Results at 1.8K / Kirby, G A (CERN) ; Auchmann, B (CERN) ; Bajko, M (CERN) ; Datskov, V I (CERN) ; Durante, M (Saclay) ; Fessia, P (CERN) ; Feuvrier, J (CERN) ; Guinchard, M (CERN) ; Giloux, C (CERN) ; Granieri, P P (CERN) et al.
Over the last five years, the model MQXC quadruple, a 120 mm aperture, 120 T/m, 1.8 m long, Nb-Ti version of the LHC insertion upgrade (due in 2021), has been developed at CERN. The magnet incorporates several novel concepts to extract high levels of heat flux and provide high quality field harmonics throughout the full operating current range. [...]
CERN-ACC-2014-0032.- Geneva : CERN, 2014 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 24 (2014) 4002405 Fulltext: PDF;
In : 23rd International Conference on Magnet Technology, Boston, MA, USA, 14 - 19 Jul 2013, pp.4002405
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6.
(71)
Performance Evaluation and Quality Assurance Management during the Series Power Tests of LHC Main Lattice Magnets / Siemko, A (CERN) ; Pugnat, P (CERN)
Within the LHC magnet program a series production of superconducting dipoles and quadrupoles has recently been completed in industry and all magnets were cold tested at CERN. The main features of these magnets are: two-in-one structure, 56 mm aperture, two layer coils wound from 15.1 mm wide Nb-Ti cables, and all-polyimide insulation. [...]
LHC-PROJECT-Report-1092; CERN-LHC-PROJECT-Report-1092.- Geneva : CERN, 2008 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 18 (2008) 126-131 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 20th International Conference on Magnet Technology, Philadelphia, PA, USA, 27 - 31 Aug 2007, pp.126-131
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7.
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Performance of the First LHC Pre-series Superconducting Dipoles / Bottura, L ; Leroy, D ; Modena, M ; Pojer, M ; Pugnat, P ; Rossi, L ; Sanfilippo, S ; Siemko, A ; Vlogaert, J ; Walckiers, L et al.
Within the LHC magnet program, a preseries production of final design, full-scale superconducting dipoles has presently started in industry and magnets are being tested at CERN. The main features of these magnets are: two-in-one structure, 56 mm aperture, six-block two layer coils wound from 15.1 mm wide graded NbTi cables, and all-polyimide insulation. [...]
LHC-Project-Report-619; CERN-LHC-Project-Report-619.- Geneva : CERN, 2003 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 13 (2003) 1235-8 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : Applied Superconductivity Conference, Houston, TX, USA, 4 - 9 Aug 2002, pp.1235-8 - Please contact the library if you need to access this document.
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8.
(68)
Steady state heat transfer experimental studies of LHC superconducting cables operating in cryogenic environment of superfluid helium / Santandrea, Dario
The heat management is a basic and fundamental aspect of the superconducting magnets used in the CERN Large Hadron Collider [...]
CERN-THESIS-2014-248 - 101 p.

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9.
(61)
Testing Results for Nb-Ti, 120-mm-Aperture, Low-B Quadrupole Models for the LHC High-Luminosity Insertion / Kirby, G A (CERN) ; Auchmann, B (CERN) ; Bajko, M (CERN) ; Charrondiere, M (CERN) ; Bourcey, N (CERN) ; Datskov, V I (CERN) ; Fessia, P (CERN) ; Feuvrier, J (CERN) ; Galbraith, P (CERN) ; Garcia Tabares, A (CERN) et al.
The design and construction of a 120 mm wide-aperture, Nb-Ti superconducting quadrupole magnet for the LHC insertion region is part of a study towards a luminosity upgrade of the LHC at CERN, envisaged for 2020-22. [...]
CERN-ATS-2013-041. - 2013. - 6 p.
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10.
(61)
Superconducting Cable and Magnets for the Large Hadron Collider / Rossi, L
The Large Hadron Collider (LHC) is a high energy, high luminosity particle accelerator under construction at CERN and it will be the largest application of superconductivity. Most of the existing 27 km underground tunnel will be filled with superconducting magnets, mainly 15 m long dipoles and 3 m long quadrupoles. [...]
LHC-Project-Report-694; CERN-LHC-Project-Report-694.- Geneva : CERN, 2004 - 9 p. Access to fulltext document: PDF;
In : 6th European Conference on Applied Superconductivity, Sorrento, Italy, 14 - 18 Sep 2003, pp.261-8 - Please contact the library if you need to access this document.
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