Title :
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
fDate :
6/1/2011 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2099635