Engineering status of the superconducting end cap toroid magnets for the ATLAS experiment at LHC

Author

Baynham, D.E. ; Butterworth, J. ; Carr, F.S. ; Courthold, M.J.D. ; Cragg, D.A. ; Densham, C.J. ; Evans, D. ; Holtom, E. ; Rochford, J. ; Sole, D. ; Towndrow, E.F. ; Warner, G.P.

Author_Institution

CLRC, Rutherford Appleton Lab., Chilton, UK

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

357

Lastpage

360

Abstract

The ATLAS experiment at LHC, CERN will utilise a large, superconducting, air-cored toroid magnet system for precision muon measurements. The magnet system will consist of a long barrel and two end-cap toroids. Each end-cap toroid will contain eight racetrack coils mounted as a single cold mass in cryostat vessel of /spl sim/10 m diameter. The project has now moved from the design/specification stage into the fabrication phase. This paper presents the engineering status of the cold masses and vacuum vessels that are under fabrication in industry. Final designs of cold mass supports, cryogenic systems and control/protection systems are presented. Planning for toroid integration, test and installation is described.

Keywords

cryogenics; particle spectrometers; physical instrumentation control; position sensitive particle detectors; superconducting magnets; ATLAS; cold mass; cold mass supports; control systems; cryogenic systems; end-cap toroid; protection systems; racetrack coils; superconducting end cap toroid magnets; vacuum vessels; Control systems; Cryogenics; Electrical equipment industry; Fabrication; Large Hadron Collider; Mesons; Superconducting coils; Superconducting magnets; Textile industry; Weight control;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828247

Filename

828247