Report of the Task Force on the Incident of 19th September 2008 at the LHC (2009)
Bajko, M, Bertinelli, F, Catalan-Lasheras, N, Claudet, S, Cruikshank, P, Dahlerup-Petersen, K, ...
This report summarizes the findings and recommendations of the AT department Task Force established to investigate the 19th September 2008 incident which occurred in sector 3-4 of the LHC. It...
Fessia, P, Bertinelli, F, Bozzini, D, Cruikshank, P, Jacquemod, A, Maan, W, ...
The interconnections of the Large Hadron Collider (LHC) continuous cryostat have been completed in fall 2007: 1695 interconnections magnet to magnet and 224 interconnections between the continuous...
The Quality Control of the LHC Continuous Cryostat Interconnections (2008)
Bertinelli, F, Borowiec, P, Bozzini, D, Cruikshank, P, Fessia, P, Grimaud, A, ...
The interconnections between the Large Hadron Collider (LHC) magnets have required some 40 000 TIG welded joints and 65 000 electrical splices. At the level of single joints and splices,...
The Special LHC Interconnections: Technologies, Organization and Quality Control (2008)
Tock, J P, Bertinelli, F, Bozzini, D, Cruikshank, P, Desebe, O, Felip, M, ...
In addition to the standard interconnections (IC) of the continuous cryostat of the Large Hadron Collider (LHC), there exists a variety of special ones related to specific components and assemblies,...
Tock, J P, Bertinelli, F, Fessia, P, Jacquemod, A, Musso, A, Poncet, A
The final interconnections of the LHC superconducting magnets in the underground tunnel are performed by a contractor on a result-oriented basis. A consortium of firms was awarded the contract after...
Status Report on the Superconducting Dipole Magnet Production for the LHC (2007)
Bajko, M, Bertinelli, F, Bellesia, B, Fessia, P, Hagen, P, Koutchouk, Jean-Pierre, ...
In August 2006, about 95 % of the production of the 1232 LHC superconducting dipole cold masses, whose coils are wound with Cu/Nb-Ti cables, is completed. One of the 3 manufacturers, having produced...
Production of Austenitic Steel for the LHC Superconducting Dipole Magnets (2006)
Bertinelli, F, Fudanoki, F, Komori, T, Peiro, G, Rossi, L
The austenitic-steel collars are an important component of the LHC dipole magnets, operating at cryogenic temperature under high mechanical stress. The required steel, known as YUS 130S, has been...
Bertinelli, F, Boter-Rebollo, E, Berthollon-Vitte, S, Glaude, D, Vanenkov, I
The quality control implemented at all LHC dipole assemblers includes precise mechanical measurements of the geometry of collared coils. A cross-analysis performed between mechanical and magnetic...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2006)
Bellesia, B, Bertinelli, F, Santoni, C, Todesco, E
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Bertinelli, F, Comel, S, Harlet, P, Peiro, G, Russo, A, Taquet, A
In 1996 CERN negotiated a contract with Cockerill Sambre â ARCELOR Group for the supply of 50Â 000 tonnes of low-carbon steel for the LHC main magnets: this was the first contract to be placed...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2005)
Bellesia, B., Bertinelli, F., Santoni, C., Todesco, E.
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2005)
Bellesia, B., Bertinelli, F., Santoni, C., Todesco, E.
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2005)
Bellesia, B., Bertinelli, F., Santoni, C., Todesco, E.
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2005)
Bellesia, B., Bertinelli, F., Santoni, C., Todesco, E.
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Dependence of Magnetic Field Quality on Collar Supplier and Dimensions in the Main LHC Dipole (2005)
Bellesia, B., Bertinelli, F., Santoni, C., Todesco, E.
In order to keep the electro-magnetic forces and to minimize conductor movements, the superconducting coils of the main Large Hadron Collider dipoles are held in place by means of austenitic steel...
Design and Fabrication of Superfluid Heat Exchanger Tubes for the LHC Superconducting Magnets (2004)
Bertinelli, F, Boter, E, Favre, G, Ferreira, L M A, Rossi, L, Savary, F
The dipole and quadrupole cold masses of the LHC machine require about 1 700 heat exchanger tubes (HET). In operation the HET carries a two-phase flow of superfluid helium at sub-atmospheric...
Design and Fabrication of Superfluid Heat Exchanger Tubes for the LHC Superconducting Magnets (2004)
Bertinelli, F, Boter, E, Favre, G, Ferreira, L M A, Rossi, L, Savary, F
The dipole and quadrupole cold masses of the LHC machine require about 1 700 heat exchanger tubes (HET). In operation the HET carries a two-phase flow of superfluid helium at sub-atmospheric...
Inluence of Copper Wedge Dimensions on Field Harmonics in the Main LHC Dipoles (2003)
Bellesia, B, Bertinelli, F, Fessia, P, Gubello, G, Lanza, C, Scandale, Walter, ...
In order to obtain the required magnetic field quality in the LHC main dipole, the superconductive cables blocks are separated by copper wedges. These components must respect geometrical...
Mechanical Design Aspects of The LHC Beam screen (1997)
Cruikshank, P, Artoos, K, Bertinelli, F, Brunet, J C, Calder, R, Campedel, C, ...
Forty-four kilometers of the LHC beam vacuum system [1,2] will be equipped with a perforated co-axial liner, the so-called beam screen. Operating between 5 K and 20 K, the beam screen reduces heat...
Mechanical Design Aspects of The LHC Beam screen (1997)
Cruikshank, P, Artoos, K, Bertinelli, F, Brunet, J C, Calder, R, Campedel, C, ...
Forty-four kilometers of the LHC beam vacuum system [1,2] will be equipped with a perforated co-axial liner, the so-called beam screen. Operating between 5 K and 20 K, the beam screen reduces heat...
The Large Hadron Collider vacuum system (1995)
Angerth, B, Bertinelli, F, Brunet, J C, Calder, R, Caspers, Friedhelm, Cruikshank, P, ...
The Large Hadron Collider Vacuum System (1995)
B. Angerth, F. Bertinelli, R. Calder, F. Caspers, P. Cruikshank, ...
INTRODUCTION The two rings of the LHC beam vacuum system have a total length of about 54 km of which almost 48 km will be at 1.9 K, the temperature of the superconducting magnets [1]. With the design...
The cold vacuum system of the Large Hadron Collider (1994)
Angerth, B, Bertinelli, F, Brunet, J C, Calder, R, Gómez-Goñi, J, Gröbner, Oswald, ...
The LHC beam screen: specification and design (1994)
Angerth, B, Bertinelli, F, Brunet, J C, Calder, R, Caspers, Friedhelm, Gröbner, Oswald, ...