Title :
The CMS conductor
Author :
Blau, B. ; Campi, D. ; Curé, B. ; Folch, R. ; Hervé, A. ; Horvath, I.L. ; Kircher, F. ; Musenich, R. ; Neuenschwander, J. ; Riboni, P. ; Seeber, B. ; Tavares, Sequeira ; Sgobba, S. ; Smith, R.P.
Author_Institution :
Swiss Fed. Inst. of Technol., Zurich, Switzerland
fDate :
3/1/2002 12:00:00 AM
Abstract :
The Compact Muon Solenoid (CMS) is one of the general-purpose detectors to be provided for the LHC project at CERN. The design field of the CMS superconducting magnet is 4 T, the magnetic length is 12.5 m and the free bore is 6 m. The magnetic field is achieved by means of a four-layer superconducting solenoid. The stored magnetic energy is 2.7 GJ at nominal current of 20 kA (at 4.5 K operating temperature). The coil is wound from a high purity aluminum-stabilized Rutherford type conductor. Unlike other existing Al-stabilized thin solenoids, the structural integrity of the CMS coil is ensured both by the Al-alloy reinforcement welded to the conductor and an external support cylinder. The flat NbTi cable is embedded in high purity aluminum by a continuous co-extrusion process.
Keywords :
muon detection; superconducting coils; superconducting magnet energy storage; superconducting magnets; superconducting particle detectors; 12.5 mm; 2.7 GJ; 20 kA; 4 T; 4.5 K; 6 m; CMS coil; CMS conductor; Compact Muon Solenoid; NbTi; Rutherford type conductor; SMES; four-layer superconducting solenoid; general-purpose detectors; stored magnetic energy; structural integrity; superconducting magnet; Boring; Collision mitigation; Conductors; Detectors; Large Hadron Collider; Magnetic fields; Mesons; Solenoids; Superconducting coils; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2002.1018416
