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2.
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Testing of the LHC Magnets in Cryogenic Conditions : Operation Challenges, Status and Outlook
/ Chohan, Vinod
For the Large Hadron Collider under construction at CERN and the testing of its 1706 Cryo-magnets in cryogenic conditions, considerable challenges had to be overcome since 2002 to arrive at the situation of today, with semi-routine operation of the purpose built tests facility. With the setting up of an Operation Team comprising of few non-expert CERN Accelerator operation staff, and a large external collaboration, it was essential to develop the methodology of working in light of external collaboration limits and base it on CERN-known techniques and experience in accelerator running-in, commissioning and routine operation. [...]
LHC-Project-Report-838; CERN-LHC-Project-Report-838.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.250
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3.
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Field Quality and Alignment of the Series Produced Superconducting Matching Quadrupoles for the LHC Insertions
/ Catalan-Lasheras, Nuria ; Venturini Delsolaro, W ; Kirby, Glyn ; Ostojic, Ranko ; Perez, Juan C ; Prin, Herve
The production of the superconducting quadrupoles for the LHC insertions is advancing well and about half of the magnets have been produced. The coil size and field measurements performed on individual magnets both in warm and cold conditions are yielding significant results. [...]
LHC-Project-Report-837; CERN-LHC-Project-Report-837.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2738
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5.
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Low-beta Quadrupole Designs for the LHC Luminosity Upgrade
/ Ostojic, Ranko ; Catalan-Lasheras, Nuria ; Kirby, Glyn ; Russenschuck, Stephan
Several scenarios are considered for the upgrade of the LHC insertions in view of increasing the luminosity beyond 1034 cm-2s-1. In the case of “quadrupole first” option, superconducting low-b quadrupoles with apertures in the range of 90-110 mm are required in view of increased heat loads and beam crossing angles. [...]
LHC-Project-Report-835; CERN-LHC-Project-Report-835; CARE-CONF-05-005-HHH; CARE-CONF-2005-005-HHH.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: care-conf-05-005 - PDF; lhc-project-report-835 - PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2795
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6.
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Short Straight Sections in the LHC Matching Sections (MS SSS) : An Extension of the Arc Cryostats to Fulfil Specific Machine Functionalities
/ Parma, V ; Prin, H ; Lutton, F
The LHC insertions require 50 specific superconducting quadrupoles in the matching sections, operating either in 1.9 K superfluid helium or in boiling helium at 4.5 K. These magnets are assembled together with corrector magnets in cold masses, and are inserted in individual cryostats to form the MS Short Straight Sections (MS SSS). [...]
LHC-Project-Report-834; CERN-LHC-Project-Report-834.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1724
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7.
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The Assembly of the LHC Short Straight Sections (SSS) at CERN : Project Status and Lessons Learned
/ Parma, Vittorio ; Bourcey, Nicolas ; Dos Santos de Campos, Paulo M ; Feitor, Rogerio C ; Gandel, Makcim ; López, R ; Schmidlkofer, Martin ; Slits, Ivo
The series production of the LHC SSS has started in the beginning of 2004 and is foreseen to last until end 2006. The production consists in the assembly of 474 cold masses housing superconducting quadrupoles and corrector magnets within their cryostats. [...]
LHC-Project-Report-833; CERN-LHC-Project-Report-833.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2890
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8.
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Improvement of the Geometrical Stability of the LHC cryodipoles when Blocking the Central Support Post
/ Seyvet, Fabien ; Beauquis, Jerome ; Fernandez-Cano, Elena D ; Jeanneret, Jean Bernard ; Poncet, Alain ; Tommasini, Davide
The LHC will be equipped with 1232 horizontally curved 16 meter long super-conducting dipole magnets cooled at 1.9 K, supported within their vacuum vessel by three Glass Fiber Resin Epoxy (GFRE) support posts. The two support posts at the dipole extremities were initially designed free to slide longitudinally with respect to the vacuum vessel and the central support post free to slide transversely. [...]
LHC-Project-Report-832; CERN-LHC-Project-Report-832.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF;
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2675
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10.
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Ultrathin Polyimide-Stainless Steel Heater for Vacuum System Bake-out
/ Rathjen, Christian ; Blanchard, Sebastien ; Henrist, Bernard ; Kölemeijer, Wilhelmus ; Libera, Bruno ; Lutkiewicz, Przemyslaw
Space constraints in several normal conducting magnets of the LHC required the development of a dedicated permanent heater for vacuum chamber bake-out. The new heater consists of stainless steel bands inside layers of polyimide. [...]
LHC-Project-Report-840; CERN-LHC-Project-Report-840.-
Geneva : CERN, 2005 - 4 p.
Access to fulltext document: PDF; External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2744
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