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2001_MT17
42 items
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1.
First Powering of the LHC Test String 2 / Saban, R I ; Bordry, Frederick ; Bozzini, D ; Dahlerup-Petersen, K ; Denz, R ; Puccio, B ; Rijllart, A ; Rodríguez-Mateos, F ; Schmidt, R ; Serio, L et al.
String 2 is a full-size model of a regular cell in an LHC arc. In the first phase, three dipole magnets and two quadrupole magnets have been assembled in String 2 and commissioning started in April 2001. [...]
LHC-Project-Report-565; CERN-LHC-Project-Report-565.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 232-235 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.232-5 - Please contact the library if you need to access this document.
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2.
Degaussing and Decay Reduction in the Short Superconducting Dipole Models for the LHC / Bottura, L ; Venturini-Delsolaro, W ; Haverkamp, M ; Kuijper, A
The time decay of field harmonics during current plateaus is a known drawback of superconducting accelerator magnets. The present understanding of this phenomenon refers to a combination of flux creep and of the interaction between the redistribution of currents in Rutherford cables and the filament magnetization. [...]
LHC-Project-Report-564; CERN-LHC-Project-Report-564.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 291-294 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.291-4 - Please contact the library if you need to access this document.
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3.
Field Quality of the Short Superconducting Dipole Models for the LHC / Venturini-Delsolaro, W ; Ang, Z ; Bottura, L ; Sanfilippo, S ; Siemko, A ; Tommasini, D ; Walckiers, L
A full characterization of the magnetic field in warm and cold conditions was performed as a part of the standard test on the LHC 1-m long superconducting dipole models. Furthermore, dedicated measurement campaigns addressed the effect of current cycles and quenches on field quality. [...]
LHC-Project-Report-563; CERN-LHC-Project-Report-563.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 295-300 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.295-300 - Please contact the library if you need to access this document.
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4.
A System for Series Magnetic Measurements of the LHC Main Quadrupoles / Smirnov, N ; Bottura, L ; Chiusano, F ; Dunkel, O ; Legrand, P ; Schloss, S ; Schnizer, P ; Sievers, P
More than 400 twin aperture lattice quadrupoles are needed for the Large Hadron Collider (LHC) which is under construction at CERN. The main quadrupole is assembled with correction magnets in a common cryostat called the Short Straight Section (SSS). [...]
LHC-Project-Report-562; CERN-LHC-Project-Report-562.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1688-1692 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1688-92 - Please contact the library if you need to access this document.
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5.
The Measurement Bench for the LHC Spool Corrector Magnets in Industry / Arn, A ; Arshad, S A ; Giloux, C ; Patru, F ; Reymond, H ; Senis, R ; Walckiers, L
The LHC accelerator will be equipped with more than 3500 superconducting spool corrector magnets. CERN has awarded the contract for the series production and testing of these corrector magnets to industry. [...]
LHC-Project-Report-561; CERN-LHC-Project-Report-561.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1684-1687 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1684-7 - Please contact the library if you need to access this document.
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6.
Investigation of the Periodic Magnetic Field Modulation in LHC Superconducting Dipoles / Pugnat, P ; Schreiner, T ; Siemko, A
The windings of high-field accelerator magnets are usually made of Rutherford-type superconducting cables. The magnetic field distribution along the axis of such magnets exhibits a periodic modulation with a wavelength equal to the twist pitch length of the cable used in the winding. [...]
LHC-Project-Report-560; CERN-LHC-Project-Report-560.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 258-261 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.258-261 - Please contact the library if you need to access this document.
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7.
A Tool for Simulating Rotating Coil Magnetometers / Bottura, L ; Buzio, M ; Schnizer, P ; Smirnov, N
When investigating the quality of a magnetic measurement system, one observes difficulties to identify the "trouble maker" of such a system as different effects can yield similar influences on the measurement results.We describe a tool in this paper that allows to investigate numerically the effects produced by different imperfections of components of such a system, including, but not limited to vibration and movements of the rotating coil, influence of electrical noise on the system, angular encoder imperfections. This system can simulate the deterministic and stochastic parts of those imperfections. [...]
LHC-Project-Report-559; CERN-LHC-Project-Report-559.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1680-1683 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1680-3 - Please contact the library if you need to access this document.
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8.
Measurement and Analysis of the Field Quality of LHC Prototype and Pre-series Superconducting Dipoles / Aleksa, Martin ; Amet, S ; Ang, Z ; Bottura, L ; Buzio, M ; Ferracin, P ; Pagano, O ; Remondino, Vittorio ; Russenschuck, Stephan ; Sanfilippo, S et al.
We report the main results of the magnetic field measurements performed on the full-size LHC superconducting dipoles tested at CERN since summer 1998. Main field strength and field errors are summarised. [...]
LHC-Project-Report-558; CERN-LHC-Project-Report-558.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 247-250 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.247-50 - Please contact the library if you need to access this document.
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9.
Training Quench Performance and Quench Location of the Short Superconducting Dipole Models for the LHC / Sanfilippo, S ; Siemko, A ; Tommasini, D ; Venturini-Delsolaro, W
The short model program, started in October 1995 to study and validate design variants and assembly of the main LHC dipoles, has achieved its last phase. The last models were focused on the validation of specific design choices to be implemented in the series production, and to the study of the training performance of the coil heads. [...]
LHC-Project-Report-557; CERN-LHC-Project-Report-557.- Geneva : CERN, 2002 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 251-253 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.251-3 - Please contact the library if you need to access this document.
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10.
Performance of the LHC Final Prototype and First Pre-series Superconducting Dipole Magnets / Bottura, L ; D'Angelo, G ; Gateau, M ; Legrand, P ; Modena, M ; Naoui, K ; Perini, D ; Pugnat, P ; Sanfilippo, S ; Savary, F et al.
Within the LHC cryo-dipole program, six full-scale superconducting prototypes of final design were built in collaboration between Industry and CERN, followed by launching the manufacture of pre-series magnets. Five prototypes and the first of the pre-series magnets were tested at CERN. [...]
LHC-Project-Report-556; CERN-LHC-Project-Report-556.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 211-214 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.211-14 - Please contact the library if you need to access this document.
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11.
Field Decay and Snapback Measurements using a Fast Hall Plate Detector / Benedico, E ; Bottura, L ; Haverkamp, M ; ten Haken, B ; ten Kate, H H J ; Sanfilippo, S
In superconducting particle accelerators significant changes occur in tune and chromaticity during the injection of particles and their subsequent acceleration. This behavior is caused by the decay of magnetic field components in the superconducting accelerator magnets during injection and their so-called "snapback" to the original hysteresis curve during the first few seconds after the start of the energy ramp. [...]
LHC-Project-Report-555; CERN-LHC-Project-Report-555.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 86-89 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.86-9 - Please contact the library if you need to access this document.
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12.
The Multipoles Factory : An Element of the LHC Control / Amet, S ; Bottura, L ; Deniau, L ; Walckiers, L
The measurements performed at CERN on prototypes and first pre-series main dipole magnets confirm the need of an active control of the Large Hadron Collider to compensate the dynamic field changes during the proton beam injection and acceleration. This control requires in turn an accurate forecast of the magnetic field in the accelerator. [...]
LHC-Project-Report-554; CERN-LHC-Project-Report-554.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1417-1421 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1417-21 - Please contact the library if you need to access this document.
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13.
Magnetic Measurement of Alignment of Main LHC Dipoles and Associated Correctors / Bottura, L ; Buzio, M ; Deferne, G ; Schnizer, P ; Sievers, P ; Smirnov, N
We discuss the method developed for the verification of alignment of magnetic elements contained in the LHC cryodipole cold mass during series tests at CERN. First, we outline motivations and requirements and then we focus on test strategy, equipment and procedures. [...]
LHC-Project-Report-553; CERN-LHC-Project-Report-553.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1659-1662 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1659-62 - Please contact the library if you need to access this document.
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14.
AC loss in a stack of flat superconducting cables / Akhmedov, A I
An equation has been derived which describes the current distribution in a flat cable subjected to a time-dependent magnetic field directed perpendicular to the cable wide face. Solutions of this equation obtained in the case when all parameters are uniform along the cable allow us to obtain the time constant spectrum, magnetic moment of the cable and A.C. [...]
LHC-Project-Report-552; CERN-LHC-Project-Report-552.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1595-1598 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1595-1598 - Please contact the library if you need to access this document.
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15.
Loss and Dynamic Magnetic Field Measurements in LHC Dipoles / Akhmedov, A A ; Amet, S ; Balaazi, I ; Bottura, L ; Gateau, M ; Pugnat, P ; Walckiers, L
Knowledge of AC loss and dynamic magnetic field distortion in the main LHC dipoles is both important for the assessment of the accelerator performance and providing insight into the properties of assembled magnets. We measured the loss due to the current cycling in a few 1-meter long model dipoles, 15-meter long dipole prototypes and pre-series magnets. [...]
LHC-Project-Report-551; CERN-LHC-Project-Report-551.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 31-34 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.31-34 - Please contact the library if you need to access this document.
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16.
The standard Instrumentation Feedthrough System for the LHC cryo-magnets / Bozzini, D
For the LHC, 1232 dipole magnets and about 400 quadrupole magnets operating at 1.9 K are installed in arcs and dispersion suppressors. Each cryo-magnet assembly comprises the main magnet and several small corrector magnets. [...]
LHC-Project-Report-550; CERN-LHC-Project-Report-550.- Geneva : CERN, 2002 - 4 p. - Published in : IEEE Trans. Appl. Supercond. Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1269-1271 - Please contact the library if you need to access this document.
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17.
Status of the LHC Superconducting Cable Mass Production / Adam, J D ; Boutboul, T ; Cavallari, Giorgio ; Charifoulline, Z ; Denarié, C H ; Le Naour, S ; Leroy, D F ; Oberli, L R ; Richter, D ; Verweij, A P et al.
Six contracts have been placed with industrial companies for the production of 1200 tons of the superconducting (SC) cables needed for the main dipoles and quadrupoles of the Large Hadron Collider (LHC). In addition, two contracts have been placed for the supply of 470 tons of NbTi and 26 tons of Nb sheets. [...]
LHC-Project-Report-549; CERN-LHC-Project-Report-549.- Geneva : CERN, 2002 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1056-1062 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1056-62 - Please contact the library if you need to access this document.
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18.
Towards the production of 50'000 tonnes of low-carbon steel sheet for the LHC superconducting dipole and quadrupole magnets / Babic, S ; Beckers, F ; Brixhe, F ; Comel, S ; Peiro, G ; Verbeeck, T
A total of 50'000 tonnes of low-carbon steel sheet has been ordered for the LHC main magnets. After three years of production, about 10'000 tonnes of steel sheet have been produced by Cockerill-Sambre Groupe Usinor. [...]
LHC-Project-Report-548; CERN-LHC-Project-Report-548.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1219-1222 - Please contact the library if you need to access this document.
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19.
First Experience in the Mass Production of Components for the LHC Dipoles / Fessia, P ; Lanza, C ; Perini, D ; Verbeeck, T
This paper reports on the manufacturing features and difficulties experienced for the preliminary mass production of the main mechanical components of the dipole cold mass. The production of about 600 km of superconducting coil copper wedges, 5'000 coil layer jump spacers and boxes, 12'500'000 austenitic steel collars and 5'800'000 low-carbon yoke laminations is spread over 4 European countries and involves 6 manufactory firms. [...]
LHC-Project-Report-547; CERN-LHC-Project-Report-547.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1256-1260 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1256-60 - Please contact the library if you need to access this document.
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20.
Analysis of Conductor Displacements in the Coil of the LHC Main Dipole by Speckle Interferometry / Ferracin, P ; Rastogi, P K ; Scandale, Walter ; Todesco, Ezio ; Tropea, P
Magnetic field quality in superconducting magnets mostly depends on conductor position in operational conditions (under pressure, at 1.9 K). For the case of the LHC main magnets, the conductor layout must agree with the nominal design within less than 0.05 mm to met the field quality specifications. [...]
LHC-Project-Report-546; CERN-LHC-Project-Report-546.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1709-12 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1709-12 - Please contact the library if you need to access this document.
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21.
Launching of Series Fabrication of the LHC Main Quadrupoles / Burgmer, R ; Bussjäger, R ; Krischel, D ; Peyrot, M ; Rifflet, J M ; Schmidt, P ; Simon, F ; Tortschanoff, Theodor
A collaboration agreement between CERN and CEA-Saclay resulted in the successful development and construction of prototypes of the LHC main superconducting quadrupole magnets and their assembly into cold masses. A call for tender was issued in October 1999 and led to the adjudication of a contract to ACCEL Instruments. [...]
LHC-Project-Report-545; CERN-LHC-Project-Report-545.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 287-290 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.287-90 - Please contact the library if you need to access this document.
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22.
Impact of Coil Deformations on Field Quality in the Large Hadron Collider Main Dipole / Ferracin, P ; Pagano, O ; Remondino, Vittorio ; Scandale, Walter ; Todesco, Ezio ; Tommasini, D
In superconducting accelerator magnets the coils are usually pre-stressed in order to avoid conductor movements induced by electro-magnetic forces. In this paper we use a finite element mechanical model of the main LHC dipole to evaluate the coil deformations determined by the pre-stress and their impact on magnetic field quality. [...]
LHC-Project-Report-544; CERN-LHC-Project-Report-544.- Geneva : CERN, 2002 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1727-1730 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1727-30 - Please contact the library if you need to access this document.
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23.
Test Results of the Third LHC Main Quadrupole Magnet Prototype at CEA/Saclay / Derégel, J ; Devred, Arnaud ; Gourdin, C ; Hervieu, M ; Ogitsu, T ; Peyrot, M ; Rifflet, J M ; Schild, T ; Simon, F ; Tortschanoff, Theodor et al.
The construction of the third second-generation main quadrupole magnet prototype for LHC has been completed at CEA/Saclay in November 2000. The magnet was tested at 1.9 K. [...]
LHC-Project-Report-543; CERN-LHC-Project-Report-543.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 266-269 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.266-9 - Please contact the library if you need to access this document.
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24.
Optical In-Situ Measurement of Relative Deformations of the LHC Main Dipole Cold Masses / Aznar, S ; Billan, J ; García-Pérez, J ; La China, M ; Ferracin, P ; Redaelli, S ; Scandale, Walter ; Todesco, Ezio
The LHC cryodipoles are composed of an evacuated cryostat and a cold mass, which is cooled by superfluid helium at 1.9 K. To obey constraints imposed by beam dynamics the particle beams must be centered within the mechanical axis of the dipole with a sub-millimeter accuracy. [...]
LHC-Project-Report-542; CERN-LHC-Project-Report-542.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1736-1740 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1736-40 - Please contact the library if you need to access this document.
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25.
Design and Manufacture of the Superconducting Bus-bars for the LHC Main Magnets / Belova, L M ; Genet, M ; Perinet-Marquet, J L ; Ivanov, P ; Urpin, C
The main magnets of the LHC are series-connected electrically in different powering circuits by means of superconducting bus-bars, carrying a maximum current of 13 kA. These superconducting bus-bars consist of a superconducting cable thermally and electrically coupled to a copper profile all along the length. [...]
LHC-Project-Report-540; CERN-LHC-Project-Report-540.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1305-9 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1305-9 - Please contact the library if you need to access this document.
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26.
Influence of geometrical parameters on the flexural rigidity of the LHC dipole cold mass assembly / Bajko, M ; Chamizo, R ; Pardons, A
In order to predict the mechanical behavior of the LHC dipole cold mass in situations such as handling, transport and cool down, a number of important structural parameters are required. The dipole's flexural rigidity determines entirely the mechanical elastic behavior of the cold mass. [...]
CERN-LHC-Project-Report-539.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1713-1717 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1713-1717 - Please contact the library if you need to access this document.
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27.
Metrology of the LHC Dipole Cold Masses / Bajkó, M ; Pardons, A ; Savary, F
In order to provide the largest possible mechanical aperture for the LHC beam, the dipole cold masses have to match the circular trajectory of the particle beam. The requirements on the dipole cold mass geometry are dictated by the beam optics of the LHC machine and by the mechanical deformation limits of the interconnection zone. [...]
LHC-Project-Report-538; CERN-LHC-Project-Report-538.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1718-1722 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1718-22 - Please contact the library if you need to access this document.
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28.
Characteristics of the Austenitic Steels Used in the LHC Main Dipoles / Lanza, C ; Perini, D
The LHC dipole structure is assembled using austenitic steel collars and austenitic steel end-laminations. The collars will be fine-blanked starting from 11'000 tonnes of steel; the end-laminations require 1'700 tonnes of steel. [...]
LHC-Project-Report-537; CERN-LHC-Project-Report-537.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1252-1255 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1252-5 - Please contact the library if you need to access this document.
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29.
A Novel Device for the Measurement of the Mechanical and Magnetic Axes of Superconducting Magnet Assemblies for Accelerators / Aznar, S ; Billan, J ; Fischer, F ; Galbraith, Peter ; García-Pérez, J ; Goy, S ; Mermillod, N ; Peiro, G ; Patti, G ; Rathjen, C
In the context of the LHC superconducting magnet production, especially for dipoles and quadrupoles due to their complexity, it is foreseen to perform acceptance tests, at an early production stage, to detect possible significant deviations from the design values. The knowledge of the magnetic field geometry is very important, especially for the main magnets. [...]
LHC-Project-Report-536; CERN-LHC-Project-Report-536.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1731-1735 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1731-5 - Please contact the library if you need to access this document.
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30.
Development and Manufacture of the Coil End Spacers of the LHC Pre-series Dipoles / Farina, E ; Fessia, P ; Perini, D ; Schiappapietra, A ; Seneé, L
The coil end spacers play an important role in the performance of superconducting coils, as their shape and location determine the mechanical stability of the conductors in the coil ends (and hence the overall coil training performance) and the local field quality. The dipole end spacers are often of a size and a geometry difficult to be industrially series manufactured and measured. [...]
LHC-Project-Report-535; CERN-LHC-Project-Report-535.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1496-1500 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1496-500 - Please contact the library if you need to access this document.
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31.
Modeling of Coil Pre-stress Loss During Cool-down in the Main Dipoles of the Large Hadron Collider / Ferracin, P ; Scandale, Walter ; Todesco, Ezio ; Tommasini, D
We describe a finite element mechanical model of the main LHC dipole, based on the geometry and on the properties of its components; coil characteristics are derived from measurements on stacks of conductors. We show how to define equivalent properties of cable blocks that take into account the collaring procedure when it is not explicitly modelled. [...]
LHC-Project-Report-534; CERN-LHC-Project-Report-534.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1705-1708 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1705-8 - Please contact the library if you need to access this document.
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32.
A Novel Idea for Coil Collar Structures in Accelerator Superconducting Magnets / Fessia, P ; Perini, D
The dipoles for several different machines (LHC, SSC, HERA) were designed using non-magnetic metallic collars to contain the superconducting coils. The coils are of two types, main and floating. [...]
LHC-Project-Report-533; CERN-LHC-Project-Report-533.- Geneva : CERN, 2002 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 202-206 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.202-6 - Please contact the library if you need to access this document.
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33.
The LHC Insertion Magnets / Ostojic, R
The Large Hadron Collider comprises eight insertions, four of which are dedicated to the LHC experiments while the others are used for the major collider systems. The various functions of the insertions are fulfilled by a variety of magnet systems, most of them based on the technology of NbTi superconductors cooled by superfluid helium at 1.9 K. [...]
LHC-Project-Report-532; CERN-LHC-Project-Report-532.- Geneva : CERN, 2002 - 7 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 196-201 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.196-201 - Please contact the library if you need to access this document.
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34.
Development of Superconducting Tuning Quadrupole Corrector (MQT) Prototypes for the LHC / Allitt, M ; Arshad, S A ; Hobl, A ; Ijspeert, Albert ; Karppinen, M ; Krischel, D ; Mazet, J ; Salminen, J ; Schillo, M ; Senis, R et al.
The main quadrupoles of the Large Hadron Collider (LHC) are connected in families of focusing and defocusing magnets. In order to make tuning corrections in the machine a number of quadrupole corrector magnets (designated MQT) are necessary. [...]
LHC-Project-Report-531; CERN-LHC-Project-Report-531.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 35-8 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.35-8 - Please contact the library if you need to access this document.
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35.
Compensation of magnetization effects in superconducting accelerator magnets / Völlinger, Christine ; Aleksa, Martin ; Russenschuck, Stephan
Magnetization effects in the coils of superconducting accelerator magnet deteriorate the field quality at injection field level. The CERN field computation program ROXIE has recently been extended to calculate the persistent current using a semi-analytical hysteresis model for hard superconductors. [...]
LHC-Project-Report-530; CERN-LHC-Project-Report-530.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1492-1495 Fulltext: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1492-1495 - Please contact the library if you need to access this document.
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36.
Inner Triplet Corrector Package MQSXA for the LHC / Karppinen, M ; Pérez, J C ; Senis, R
The eight Inner Triplets of the LHC will each house a combined corrector magnet assembly, MQSXA, which comprises a skew quadrupole (MQSX) in line with nested skew octupole (MCOSX), octupole (MCOX), and skew sextupole (MCSSX) windings. These superconducting single-aperture magnet assemblies have a bore of 70 mm diameter, and the complete MQSXA assemblies are 530 mm long, have an outer diameter of 180 mm and an approximate mass of 90 kg. [...]
LHC-Project-Report-529; CERN-LHC-Project-Report-529.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 102-106 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.102-6 - Please contact the library if you need to access this document.
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37.
Principles Developed for the Construction of the High Performance, Low-cost Superconducting LHC corrector Magnets / Allitt, M ; Hilaire, A ; Ijspeert, Albert ; Karppinen, M ; Mazet, J ; Pérez, J ; Salminen, J ; Karmarkar, M ; Puntambekar, A
The Large Hadron Collider (LHC) needs more than 6000 superconducting corrector magnets. These must be sufficiently powerful, have enough margin, be compact and of low cost. [...]
LHC-Project-Report-528; CERN-LHC-Project-Report-528.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.90-93 - Please contact the library if you need to access this document.
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38.
Simulation of the Effect of a Series of Superconducting Magnets on a Quenching Magnet using a Controlled Current Pulse / Hilaire, A ; Ijspeert, Albert ; Pérez, J C
In the LHC, the superconducting corrector magnets will be powered in series of up to 154 magnets. For protection in case of a quench, each magnet has been equipped with a parallel resistor as a bypass for the current. [...]
LHC-Project-Report-527; CERN-LHC-Project-Report-527.- Geneva : CERN, 2002 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1553-6 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1553-6 - Please contact the library if you need to access this document.
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39.
Current Leads for the LHC Magnet System / Ballarino, A
The LHC current lead project is now entering into the stage of procurement of the components for integration into the machine. About 3300 current leads with ratings ranging from 60 A to 13000 A will be required for powering the numerous electrical circuits. [...]
LHC-Project-Report-526; CERN-LHC-Project-Report-526.- Geneva : CERN, 2002 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1275-1280 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1275-1280 - Please contact the library if you need to access this document.
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40.
First Cryogenic Testing of the ATLAS Superconducting Prototype Magnets / Delruelle, N ; Dudarev, A ; Haug, F ; Mayri, C ; Orlic, J P ; Passardi, Giorgio ; Pirotte, O ; ten Kate, H H J
The superconducting magnet system of the ATLAS detector will consist of a central solenoid, two end-cap toroids and the barrel toroid made of eight coils (BT) symmetrically placed around the central axis of the detector. All these magnets will be individually tested in an experimental area prior to their final installation in the underground cavern of the LHC collider. [...]
CERN-LHC-2002-001-ECR.- Geneva : CERN, 2002 - 4 p. Report - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1336-1338 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1336-8 - Please contact the library if you need to access this document.
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41.
Transient Stability Analysis of the SeCRETS Experiment in SULTAN / Bottura, L ; Bruzzone, P L (EPFL/CRP, Fusion Technology Div., Villigen) ; Marinucci, C
We present here the results of the analysis of the stability experiment SeCRETS, performed on two Nb$_{3}$Sn cable-in-conduit conductors with the same amount of total copper stabilizer, but different degree of segregation. The model used for the analysis, including superconducting strands, conductor jacket and helium, is solved with the code GandalfTM. [...]
CERN-LHC-2002-003-MTA.- Geneva : CERN, 2002 - 5 p. Report - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1524-1527 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1524-1527 - Please contact the library if you need to access this document.
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42.
Application of the Code THEA to the CONDOPT Experiment in SULTAN / Bottura, L ; Bruzzone, P L (EPFL/CRP, Fusion Technology Div., Villigen) ; Marinucci, C
The CONDOPT (CONDuctor OPTimization) experiment has been recently completed in SULTAN. The current sharing behaviour of Nb$_{3}$Sn samples was assessed as a function of the number of cyclic loads experienced during current sweeps in a 10 T background field. [...]
CERN-LHC-2002-002-MTA.- Geneva : CERN, 2002 - 5 p. Report - Published in : IEEE Trans. Appl. Supercond. 12 (2002) 1528-1532 Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 17th International Conference on Magnet Technology, CERN, Geneva, Switzerland, 24 - 28 Sep 2001, pp.1528-32 - Please contact the library if you need to access this document.
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