Construction of cold mass assembly for full-length dipoles for the SSC accelerator

Author

Dahl, P. ; Cottingham, J. ; Garber, M. ; Ghosh, A. ; Goodzeit, C. ; Greene, A. ; Herrera, J. ; Kahn, S. ; Kelly, E. ; Morgan, G. ; Prodell, A. ; Sampson, W. ; Schneider, W. ; Shutt, R. ; Thompson, P. ; Wanderer, P. ; Willen, E.

Author_Institution

Brookhaven National Laboratory, Upton, New York

Volume

23

Issue

2

fYear

1987

fDate

3/1/1987 12:00:00 AM

Firstpage

1215

Lastpage

1218

Abstract

Four of the initial six 17m long demonstration dipole magnets for the proposed Superconducting Super Collider have been constructed, and the first one is now being tested. This paper describes the magnet design and construction of the cold mass assembly. The magnets are cold iron (and cold bore) 1-in-1 dipoles, wound with partially keystoned current density-graded high homogeneity NbTi cable in a two-layer $\\cos \\theta$ coil of 40 mm inner diameter. The magnetic length is 16.6 m. The coil is prestressed by 15 mm wide stainless steel collars, and mounted in a circular, split iron yoke of 267 mm outer diameter, supported by a cylindrical yoke (and helium) containment vessel of stainless steel. The magnet bore tube assembly incorporates superconducting sextupole trim coils produced by an industrial, automatic process akin to printed circuit fabrication.

Keywords

Accelerator magnets, superconducting; Colliding-beam devices; Acceleration; Assembly; Boring; Iron; Steel; Superconducting cables; Superconducting coils; Superconducting magnets; Testing; Wounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1987.1064927

Filename

1064927