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1.
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Construction of the New Prototype of Main Quadrupole Cold Masses for the Arc Short Straight Sections of LHC
/ Peyrot, M ; Rifflet, J M ; Simon, F ; Tortschanoff, Theodor ; Védrine, P
Each cold mass of the short straight sections in the eight LHC arcs will contain a 3.25 m long twin aperture quadrupole of a nominal gradient of 223 T/m. This magnet will be aligned in a 5.3 m long inertia tube together with auxiliary magnets on each end. [...]
LHC-Project-Report-371; CERN-LHC-Project-Report-371; DAPNIA-STCM-99-13; DAPNIA-STCM-99-13.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 10 (2000) 170-173
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In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.170-173
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2.
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The CERN Cryogenic Test Facility for the Atlas Barrel Toroid Magnets ; 1999 ed.
/ Haug, F ; Cambon, A ; Delruelle, N ; Orlic, J P ; Passardi, Giorgio ; Tischhauser, Johann
The superconducting magnet system of the ATLAS detector will consist of a central solenoid, two end-cap toroidal magnets (ECT) and the barrel toroid magnet (BT) made of eight coils symmetrically placed around the central axis of the detector. The magnets will be tested individually in a 5000 m2 experimental area prior to their final installation at an underground cavern of the LHC Collider. [...]
LHC-Project-Report-365; CERN-LHC-Project-Report-365.-
Geneva : CERN, 1999 - 5 p.
Access to fulltext document: PDF;
In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.1514-1517
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3.
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Design and construction of a 1 m model of the low current superconducting quadrupole for the LHC insertions
/ Kirby, G A ; Lucas, J ; Ostojic, R ; Rodríguez-Mateos, F ; Krischel, D ; Schillo, M
About one hundred individually powered low current superconducting quadrupoles will be installed in the LHC insertions. One of the design requirements was to keep the excitation current of the magnet below 6 kA in view of minimizing the costs of the powering circuits. [...]
LHC-Project-Report-355; CERN-LHC-Project-Report-355.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
Access to fulltext document: PDF; IEEE Published version, local copy: PDF;
In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.150-3
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4.
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A Method to Measure Thermal Deformation of Superconducting Magnet Cross Sections
/ Grau-Carles, A ; García-Tabarés, L ; Todesco, Ezio ; Tommasini, D ; Siegel, N
The precision measurement of the cable positioning in superconducting coils is of great interest both at room and liquid nitrogen temperatures because mechanical and thermal deformations affect the quality of the magnetic field. The paper describes a new two-coordinate measuring device, which is able to obtain scanned images of flat composite samples at liquid nitrogen temperature. [...]
LHC-Project-Report-350; CERN-LHC-Project-Report-350.-
Geneva : CERN, 1999 - 5 p.
Access to fulltext document: PDF;
In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.1395-1398
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5.
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The Magnets for the LHC Experiments ; 1999 ed.
/ Taylor, T M
The Large Hadron Collider (LHC) presently under construction at the European Laboratory for Particle Physics (CERN) will provide proton-proton collisions at the 14 TeV level. Each of the four approved detectors (ALICE, ATLAS, CMS, and LHCb) to be installed at the interaction points of this machine relies on a sophisticated magnet system for separation and momentum measurements of the charged particles. [...]
LHC-Project-Report-339; CERN-LHC-Project-Report-339.-
Geneva : CERN, 1999 - 6 p.
Access to fulltext document: PDF;
In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.342-346
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6.
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Cryogenics for the Large Hadron Collider ; 1999 ed.
/ Lebrun, P
The Large Hadron Collider (LHC), a 26.7 km circumference superconducting accelerator equipped with high-field magnets operating in superfluid helium below 1.9 K, has now fully entered construction at CERN, the European Laboratory for Particle Physics. The heart of the LHC cryogenic system is the quasi-isothermal magnet cooling scheme, in which flowing two-phase saturated superfluid helium removes the heat load from the 36'000 ton cold mass, immersed in some 400 m3 static pressurised superfluid helium. [...]
LHC-Project-Report-338; CERN-LHC-Project-Report-338.-
Geneva : CERN, 1999 - 8 p.
Access to fulltext document: PDF;
In : 16th International Conference on Magnet Technology, Tallahassee, FL, USA, 26 Sep - 2 Oct 1999, pp.1500-1506
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8.
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Search for the Oscillation $\nu_{\mu} \to \nu_{\tau}$ ; 1997 ed.
/ Hernando, J D ; Angelini, C ; Astier, Pierre ; Autiero, D ; Baldisseri, Alberto ; Baldo-Ceolin, Massimilla ; Banner, M ; Bassompierre, Gabriel ; Benslama, K ; Blumenfeld, B et al.
The experiment searches for the oscillations $\nu_{\mu} \rightarrow \nu_{\tau}$ in the CERN wide-band neutrino beam. It aims at detecting $\nu_{\tau}$ charged current interactions by observing the production of the $\tau$ lepton through its various decay modes by means of kinematical criteria. [...]
1997
- Published in : Experim. CERN (1997) , pp. 38-40
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9.
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A study of the transverse fluctuations of hadronic showers in the NOMAD electromagnetic calorimeter
/ Autiero, D ; Baldo-Ceolin, Massimilla ; Bobisut, F ; Camilleri, L L ; Cattaneo, Paolo Walter ; Cavasinni, V ; Collazuol, D ; Conforto, G ; Conta, C ; Contalbrigo, M et al.
The transverse shower shape of the energy deposition of hadrons in the NOMAD lead glass calorimeter has been studied by exposing a prototype of this calorimeter to pion test beams of various momenta and incident angles. Large event to event fluctuations in the shower shape and significant energy depositions far from the incident hadron were observed making it difficult to associate all the deposited energy to the incident hadron that caused it. [...]
CERN-PPE-97-150.-
Geneva : CERN, 1998 - 23 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 411 (1998) 285
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31.
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High resolution pixel detectors for $e^{+}e^{-}$ linear colliders
/ Caccia, M ; Campagnolo, R ; Meroni, C ; Kucewicz, W ; Deptuch, G ; Zalewska-Bak, A ; Battaglia, Marco ; Österberg, K ; Orava, Risto ; Higueret, S et al.
The physics goals at the future e+e- linear collider require high performance vertexing and impact parameter resolution. [...]
hep-ex/9910019.
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1999. - 8 p.
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33.
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The ISOCAM/LW Detector Dark Current Behaviour
/ Biviano, A ; Sauvage, M ; Gallais, P ; Boulade, O ; Román, P ; Guest, S ; Okumura, K ; Ott, S
We describe the calibration, measurements and data reduction, of the dark current of the ISOCAM/LW detector. [...]
astro-ph/9910297.
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1999. - 24 p.
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39.
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Measurement of neutrino oscillations by means of a high density detector on the atmospheric neutrino beam
/ Aglietta, M ; Ambrosio, M ; Aprile, E ; Bologna, G ; Bonesini, M ; Bencivenni, G ; Calvi, M ; Castellina, A ; Curioni, A ; Fulgione, W et al.
A high-density calorimeter, consisting of magnetized iron planes interleaved by RPCs, as tracking and timing devices, is a good candidate for a next generation experiment on atmospheric neutrinos. [...]
hep-ex/9907024.
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1999. - 12 p.
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41.
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A Mole for Warm Magnetic and Optical Measurements of LHC Dipoles
/ Bottura, L ; Buzio, M ; Deferne, G ; Glöckner, C ; Jansen, H ; Köster, A ; Legrand, P ; Rijllart, A ; Sievers, P
A new rotating coil probe (a mole) has been developed for the simultaneous measurement of the magnetic field and magnetic axis of warm superconducting LHC dipoles and associated corrector windings. The mole houses a radial rotating coil and travels inside the magnet aperture by means of an externally driven two-way traction belt [...]
LHC-Project-Report-363; CERN-LHC-Project-Report-363.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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42.
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Performance of the CLEO III LiF-TEA Ring Imaging Cherenkov Detector in a High Energy Muon Beam
/ Artuso, M ; Ayad, R ; Azfar, F ; Efimov, A ; Kopp, S E ; Mountain, R ; Majumder, G ; Schuh, S ; Skwarnicki, T ; Stone, S et al.
The CLEO III Ring Imaging Cherenkov detector uses LiF radiators to generate Cherenkov photons which are then detected by proportional wire chambers using a mixture of CH$_4$ and TEA gases. The first two photon detector modules which were constructed, were taken to Fermilab and tested in a beam dump that provided high momentum muons. [...]
hep-ex/9910054; HEPSY-99-5.-
Syracuse, NY : Syracuse Univ., 2000
- Published in : Nucl. Instrum. Methods Phys. Res., A 441 (2000) 374-392
Access to fulltext document: PDF; External link: hep-ex/9910054 PDF
In : International Europhysics Conference on High-Energy Physics, Tampere, Finland, 15 - 21 Jul 1999, pp.1003-1005
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46.
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New experimental data for the decays $\phi \to \mu^{+}\mu^{-}$ and $\phi \to \pi^{+}\pi^{-}$ from SND detector
/ Achasov, M N ; Aulchenko, V M ; Beloborodov, K I ; Berdyugin, A V ; Bozhenok, A V ; Bukin, D A ; Burdin, S V ; Dimova, T V ; Dolinski, S I ; Drozdetsky, A A et al.
The processes $e^+e^-\to\mu^+\mu^-$ and $e^+e^-\to\pi^+\pi^-$ have been studied with SND detector at VEPP-2M $e^+e^-$ collider in the vicinity of 0.45\pm 0.32)\times 10^{-4}$ and $B(\phi\to\pi^+\pi^-)=(0.71\pm 0.11\pm 0.09)\times 10^{-4}$ were obtained..
hep-ex/9910070.-
2000
- Published in : Nucl. Phys. A 675 (2000) 320-324
Access to fulltext document: PDF; External link: hep-ex/9910070 PDF
In : 8th International Conference on Hadron Spectroscopy, Beijing, China, 24 - 28 Aug 1999, pp.320-324
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67.
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Measurement of Superconducting Busbars Models for the LHC Main Dipole
/ Le Coroller, A ; Derégel, J ; Henrichsen, K N ; Hervieu, M ; Juster, F P ; Perinet-Marquet, J L ; Vlogaert, J
The LHC main dipoles will be connected in series by superconducting busbars, consisting of a superconducting cable brazed onto a stabilizing copper profile. In case of a quench detection, protection heaters will be activated to drive the magnet to theresistive state. [...]
LHC-Project-Report-344; CERN-LHC-Project-Report-344.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 10 (2000) 1118-21
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69.
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Design, Manufacturing Status, First Results of the LHC Main Dipole Final Prototypes and Steps towards Series Manufacture
/ Artoos, K ; Bottura, L ; Fessia, P ; Bajko, M ; Modena, M ; Pagano, O ; Perini, D ; Savary, F ; Scandale, Walter ; Siemko, A et al.
This paper reports about the program of six LHC superconducting main dipole final prototypes and the steps towards series manufacture. The above program, launched in summer 1998, relies on collared coils manufactured by industry and cold masses assembled at the CERN Magnet Assembly Facility. [...]
LHC-Project-Report-346; CERN-LHC-Project-Report-346.-
Geneva : CERN, 2000 - 6 p.
- Published in : IEEE Trans. Appl. Supercond.
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70.
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Selection of the Cross-Section Design for the LHC Main Dipole
/ Fessia, P ; Perini, D ; Russenschuck, Stephan ; Völlinger, C ; Vuillermet, R ; Wyss, C
With the aim of selecting the most suitable design for the series production of the LHC main dipoles, several possible configurations were analysed with respect to admissible component tolerances and structural stability, field level, field quality, number and weight of parts. Two alternatives designs, featuring common collars made out of aluminium alloy and austenitic steel, respectively, were finally compared in detail. [...]
LHC-Project-Report-347; CERN-LHC-Project-Report-347.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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71.
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Status of the Short Dipole Model Program for the LHC
/ Artoos, K ; Bottura, L ; Fessia, P ; Perini, D ; Sanfilippo, S ; Siegel, N ; Siemko, A ; Tommasini, D ; Vanenkov, I ; Walckiers, L et al.
The model program for the LHC main dipoles is dedicated to the study and validation of design variants and assembly parameters to achieve reproducible performance and optimise components and assembly costs. The topics investigated in the last year include the material of the coil end spacers, the use of polyimide films from different manufacturers, the definition of optimum azimuthal and longitudinal coil pre-stress values, shimming of coil ends, collaring around the "cold bore" and different layouts of the yoke ends. [...]
LHC-Project-Report-348; CERN-LHC-Project-Report-348.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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75.
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Further Development of the Sextupole and Decapole Spool Corrector Magnets for the LHC
/ Allitt, M ; Bapna, S ; Ijspeert, Albert ; Karmarkar, M ; Karppinen, M ; Mazet, J ; Pérez, J ; Puntambekar, A ; Ruwali, K ; Salminen, J et al.
In the Large Hadron Collider (LHC) the main dipoles will be equipped with sextupole (MCS) and decapole (MCD) spool correctors to meet the very high demands of field quality required for the satisfactory operation of the machine. Each decapole corrector will in addition have an octupole insert (MCO) and the assembly of the two is designated MCDO. [...]
LHC-Project-Report-353; CERN-LHC-Project-Report-353.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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78.
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Coil Size and Geometric Field Quality in Short Model Dipoles for LHC
/ Ang, Z ; Bottura, L ; Russenschuck, Stephan ; Siemko, A ; Tommasini, D ; Walckiers, L
We have measured the magnetic field at room temperature and at 1.8 K on more than twenty, 1-m long, single aperture LHC superconducting dipole models. The magnets feature either a 5-block coil geometry or the baseline 6-block geometry foreseen for the LHC. [...]
LHC-Project-Report-359; CERN-LHC-Project-Report-359.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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79.
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Twin Rotating Coils for Cold Magnetic Measurements of 15 m Long LHC Dipoles
/ Billan, J ; Bottura, L ; Buzio, M ; D'Angelo, G ; Deferne, G ; Dunkel, O ; Legrand, P ; Rijllart, A ; Siemko, A ; Sievers, P et al.
We describe here a new harmonic coil system for the field measurement of the superconducting, twin aperture LHC dipoles and the associated corrector magnets. Besides field measurements the system can be used as an antenna to localize the quench origin. [...]
LHC-Project-Report-361; CERN-LHC-Project-Report-361.-
Geneva : CERN, 2000 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 10 (2000) 1422-6
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81.
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Design and Fabrication of a 1 m Model of the 70 mm Bore Twin Aperture Superconducting Quadrupole for the LHC Insertions
/ Kirby, G A ; Lucas, J ; MacKay, R S ; Nobes, S C ; Ostojic, R ; Treadgold, J R
For reasons of geometrical acceptance, 70 mm bore twin aperture quadrupoles are required in the LHC insertions. For an operating gradient of 160 T/m at 4.5 K, a design based on a four layer coil wound from two graded 8.2 mm NbTi conductors has been developed. [...]
LHC-Project-Report-354; CERN-LHC-Project-Report-354.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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82.
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Further Development of the Sextupole Dipole Corrector (MSCB) Magnet for the LHC
/ Ang, Z ; Arshad, S A ; Bajko, M ; Bottura, L ; Coxill, D ; Giloux, C ; Ijspeert, Albert ; Karppinen, M ; Landgrebe, D ; Walckiers, L
Combined sextupole-dipole corrector magnets (MSCB) will be mounted in each half cell of the new Large Hadron Collider (LHC) being built at CERN. The dipole part, used for particle orbit corrections, will be powered individually and is designed for low current, originally 30 A but now 55 A. [...]
LHC-Project-Report-356; CERN-LHC-Project-Report-356.-
Geneva : CERN, 2000 - 5 p.
- Published in : IEEE Trans. Appl. Supercond.
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