Design of the superconducting end cap toroids for the ATLAS experiment at LHC

Author

Baynham, D.E. ; Aspey, R.Q. ; Carr, F.S. ; Coombs, R.C. ; Cragg, D.A. ; Cunliffe, N.H. ; Greenhalgh, R.J. ; Holtom, E. ; Sampson, P.L. ; Walters, C.R.

Author_Institution

Rutherford Appleton Lab., Chilton, UK

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2055

Lastpage

2058

Abstract

The ATLAS experiment proposed for LHC will use a toroidal magnet system to achieve high efficiency muon momentum resolution. The end cap toroids are designed to provide bending powers in the range 4-8 Tm over the rapidity span 1.5-2.8 in the important forward/backward regions. Each end cap toroid will have an outer diameter of approximately 11 m and an axial length of 5.6 m. This paper presents the magnetic, mechanical and cryogenic design of the end cap toroid magnet systems. Particular emphasis is placed on the interactive design issues imposed by the close proximity of the ATLAS barrel toroid. Proposals for the magnet fabrication and assembly are given

Keywords

accelerator magnets; colliding beam accelerators; cryogenics; particle beam diagnostics; position sensitive particle detectors; proton accelerators; semiconductor counters; storage rings; superconducting magnets; synchrotrons; 11 m; 5.6 m; ATLAS barrel toroid; ATLAS experiment; LHC; Large Hadron Collider; bending powers; cryogenic design; high efficiency muon momentum resolution; interactive design issues; magnet fabrication; magnetic design; mechanical design; superconducting end cap toroids; toroidal magnet system; Coils; Conductors; Cryogenics; Detectors; Electrical capacitance tomography; Laboratories; Large Hadron Collider; Mesons; Superconducting magnets; Toroidal magnetic fields;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.508566

Filename

508566