Mechanical performance of a twin-aperture 56 mm bore 1 m long dipole model made with SSC type cables

Author

Buckley, J. ; Karppinen, M. ; Kirby, G. ; Kurtyka, T. ; Perini, D. ; Poncet, A. ; Siambanis, T. ; Siegel, N. ; Vanenkov, I.

Author_Institution

CERN, Geneva, Switzerland

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2136

Lastpage

2139

Abstract

A twin-aperture dipole model made with standard SSC type cables was launched to initiate studies of lower field magnets for a 7 TeV collider machine. This model, which was entirely constructed at CERN, reached at 1.8 K a peak field of 9.7 T. Short mechanical models, made to check the assembly parameters, as well as the final model magnet were instrumented with mechanical force transducers based on strain gauges to monitor azimuthal stresses and axial forces in the coils during assembly, cooldown and excitation. Dynamic measurements of forces and temperatures during magnet quenching were also performed with a high sampling rate acquisition system. This paper reviews the magnet mechanical design principles, describes the design, fabrication and the calibration of the force transducers and presents the main results of the measurements

Keywords

accelerator magnets; colliding beam accelerators; proton accelerators; storage rings; superconducting magnets; synchrotrons; 1 m; 1.8 K; 56 mm; 7 TeV; 9.7 T; SSC type cables; axial forces; azimuthal stresses; collider machine; final model magnet; high sampling rate acquisition system; lower field magnets; magnet mechanical design principles; strain gauges; twin-aperture dipole model; Assembly; Boring; Cables; Condition monitoring; Force measurement; Instruments; Magnetic field induced strain; Magnets; Stress; Transducers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.508586

Filename

508586