Effect of Low Temperature Reactor Irradiation on Organic Insulators in Superconducting Magnets (II)

Abstract

Several organic insulators expected to be used in the construction of superconducting magnets in fusion reactors are irradiated in a fission reactor at about 5K and the effect of radiation on their mechanical properties has been investigated at liquid nitrogen temperature.
Breaking stress and yield stress of epoxy resins hardened by aromatic amine and aliphatic amine are reduced after irradiation of about 1×10⁹ rad. Polyimide and fibre reinforced epoxy have high radiation resistance.