Magnetic field measurements of 1.5 meter model SSC collider dipole magnets at Fermilab

Author

Lamm, M.J. ; Bleadon, M. ; Coulter, K.J. ; Delchamps, S. ; Hanft, R. ; Jaffery, T.S. ; Kinney, W. ; Koska, W. ; Ozelis, J.P. ; Strait, J. ; Wake, M. ; DiMarco, J.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL, USA

Volume

28

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

133

Lastpage

136

Abstract

Magnetic field measurements have been performed at Fermilab on 1.5 m magnetic length model dipoles for the Superconducting Supercollider (SSC). Harmonic measurements are recorded at room temperature before and after the collared cell is assembled into the yoke and at liquid helium temperature. Measurements are made as a function of longitudinal position and excitation current. High field data are compared with room temperature measurements of both the collared coil and the completed yoked magnet and with the predicted fields of both the body of the magnet and the coil ends. The effects of yoking and cold testing agree well with predictions. One of the two cold-tested dipoles satisfies the SSC specification for sextupole/decapole

Keywords

beam handling equipment; harmonics; magnetic fields; proton accelerators; storage rings; superconducting magnets; synchrotrons; 1.5 m; Fermilab; SSC collider dipole magnets; Superconducting Supercollider; cold testing; collared coil; decapole; excitation current; harmonic measurement; liquid He temperature; longitudinal position; magnetic field measurement; model dipoles; sextupole; yoking effect; Assembly; Coils; Current measurement; Helium; Magnetic field measurement; Performance evaluation; Position measurement; Superconducting magnets; Temperature measurement; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.119827

Filename

119827