Design and Testing of ITER TF Coil Insulations

Author

Hooker, Matthew W. ; Walsh, Jennifer K. ; Haynes, Mark W. ; Munshi, Naseem A.

Author_Institution

Composite Technol. Dev., Inc., Lafayette, CO, USA

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

3127

Lastpage

3131

Abstract

The design of the ITER Toroidal Field (TF) coils requires an insulation system that is amenable to the very large scale vacuum impregnation processes planned for the construction of these devices, and that will provide reliable electro-mechanical performance after radiation exposure. To address this need, CTD has developed an epoxy/cyanate ester resin system designated CTD-425. This material meets the processing requirements for use in the TF coils, and cyclic mechanical testing of conductor assemblies has demonstrated its electro-mechanical strength after 60,000 mechanical cycles. In addition, this product recently passed radiation exposure tests coordinated by the ITER International Organization and is now qualified for use in constructing the TF coils. This paper summarizes the performance characterization and qualification test results for this insulation.

Keywords

Tokamak devices; insulators; superconducting coils; ITER TF coil insulation; ITER Toroidal Field coil; cyclic mechanical testing; electromechanical strength; insulation system; radiation exposure test; very large scale vacuum impregnation process; Coils; Conductors; Insulation; Resins; Superconducting magnets; Testing; Cyanate ester; insulation; radiation resistance; vacuum pressure impregnation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2099635

Filename

5699369