CMS Solenoid Assembly

Author

Levesy, Bruno ; Brédy, P. ; Campi, D. ; Fabbricatore, P. ; Gaddi, A. ; Gerwig, H. ; Greco, M. ; Hervé, A. ; Kircher, F. ; Pabot, Y. ; Petiot, P. ; Roussé, J.Y. ; Scola, L. ; Urzo, C.D. ; Veillet, L.

Author_Institution

Commissariat a l´´Energie Atomique, Gif sur Yvette

Volume

16

Issue

2

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

517

Lastpage

520

Abstract

CMS (Compact Muon Solenoid) is a general-purpose detector designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with a 6 m diameter by 12.5 m long free bore, enclosed inside a 10,000-ton return yoke. The assembly of the solenoid on CERN site starts with the building up, the electrical and hydraulic connection of the 5 coil modules. After instrumentation cabling, the outer thermal shield is mounted. The cold mass is then swiveled and inserted inside the outer vacuum tank. The cold mass is supported from the outer vacuum tank by a set of titanium tie rods. After inserting the inner vacuum tank and its thermal shield, both end of the cryostat are closed. In parallel, the current leads and the cryogenic chimney are connected to the coil. This paper describes all these activities and in particular the checks performed at each step of the coil assembly

Keywords

cryogenics; cryostats; position sensitive particle detectors; shielding; superconducting magnets; 12.5 m; 4 T; 6 m; CERN Large Hadron Collider; CMS solenoid assembly; LHC; cold mass; compact muon solenoid; cryogenic chimney; cryostat; detector magnets; electrical connection; general-purpose detector design; hydraulic connection; inner vacuum tank; luminosity; outer vacuum tank; superconducting solenoid; thermal shield; titanium tie rods; Assembly; Boring; Collision mitigation; Detectors; Instruments; Large Hadron Collider; Mesons; Solenoids; Superconducting cables; Superconducting coils; Assembly; CMS; LHC project; detector magnets; superconducting solenoid;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.869653

Filename

1642900