Scoping study of a 12T toroidal field coil for the fusion engineering test facility

Author

Heinrich, Jorg ; Donato, J.W. ; Kalsi, S.S. ; Linkinhoker, C.L. ; Willig, R.L. ; Walker, M.S. ; Royet, J.M. ; Morrow, G.R.

Author_Institution

General Electric Company, Schenectady, NY

Volume

17

Issue

1

fYear

1981

fDate

1/1/1981 12:00:00 AM

Firstpage

634

Lastpage

637

Abstract

A scoping study of a 12T TF Coil for ETF has been performed. Major design drivers included: $\\circ$ High field (12T) and overall current density (1700 A/cm²) $\\circ$ Large mechanical forces due to field, current density and coil size(6×10m bore) $\\circ$ Stability against a 100 mj/cm³disturbance deposited over a half turn $\\circ$ Ability to survive poloidal field pulses and plasma disruptions without quenching Significant conclusions reached during the study were: $\\circ$ Pool boiling cooling of a Nb³Sn conductor is preferable to supercritical or superfluid cooling because it leads to a cheaper, more reliable system $\\circ$ Distributed structure is required to support the conductor $\\circ$ Most of the losses resulting from a plasma disruption are dissipated in the coil case $\\circ$ Testing should be performed on the full-size conductor to eliminate the need for extrapolation.

Keywords

Superconducting magnets, plasma confinement; Tokamaks, superconducting magnets; Boring; Coils; Conductors; Cooling; Current density; Niobium; Plasma density; Plasma stability; Test facilities; Tin;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1981.1061043

Filename

1061043