Title :
Toward an Improved High Strength, High RRR CMS Conductor
Author :
Sgobba, S. ; Campi, D. ; Curé, B. ; El-Kallassi, P. ; Riboni, P. ; Yamamoto, A.
Author_Institution :
CERN, Geneva
fDate :
6/1/2006 12:00:00 AM
Abstract :
CMS (Compact Muon Solenoid) is a general-purpose detector designed to run at the CERN Large Hadron Collider (LHC), including a 4-layer superconducting solenoid with 6 m diameter by 12.5 m long free bore operated at 4 T and at 4.5 K. The Rutherford type superconductor, stabilized by high purity 99.998% aluminum, is reinforced by aluminum alloy sections welded to the superconductor by electron beam. Due to the high magnetic forces at nominal field inside the winding pack, the conductor itself represents a main structural component to get a self-supporting winding structure. In view of an upgrade oriented to a possible new project, an improvement of the mechanical performances of the reinforced conductor starting from the CMS concept has been considered, aimed to increase the reachable field based on an optimized layout
Keywords :
electron beams; position sensitive particle detectors; superconducting magnets; welding; windings; 12.5 m; 4 T; 4-layer superconducting solenoid; 4.5 K; 6 m; CERN Large Hadron Collider; Rutherford type superconductor; aluminum alloy reinforcement; compact muon solenoid; electron beam; high RRR CMS conductor; magnetic forces; mechanical performances; reinforced conductor; self-supporting winding structure; welding; winding pack; Aluminum alloys; Boring; Collision mitigation; Conductors; Electron beams; Large Hadron Collider; Mesons; Solenoids; Superconducting materials; Welding; Al–Ni alloy; EN AW-7020; compact muon solenoid; conductors; electron beam welding; superconducting magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.869687
