Title :
Radiation effects in polymers
Author :
Fouracre, R.A. ; Banford, H.M. ; Cao, X. ; Wang, H. ; Tedford, D.J.
Author_Institution :
Strathclyde Univ., Glasgow, UK
Abstract :
A research program has been undertaken in which material is exposed to irradiation up to dose levels of 2 MGy. This represents the exposure anticipated over the lifetime of the material. Samples of epoxy resins and polyimide film were exposed to gamma rays from a Co source. Measurements of thermally stimulated discharge currents (TSDC) were made on all samples both before and after irradiation. The results for the epoxy resins may be explained in terms of the creation of mobile ions and the cross-linking of either unreacted hardener or resin during irradiation. Results for polyimide are consistent with space-charge-limited conduction
Keywords :
gamma-ray effects; insulation testing; organic insulating materials; polymer films; polymers; space-charge-limited conduction; thermally stimulated currents; 2 MGy; cross-linking; epoxy resins; gamma irradiation; mobile ions; polyimide film; space-charge-limited conduction; thermally stimulated discharge currents; Conductivity; Epoxy resins; Fusion reactor design; Magnetic materials; Plastic insulation; Polarization; Polyimides; Polymers; Radiation effects; Temperature;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on
Conference_Location :
Trondheim
DOI :
10.1109/ICSD.1989.69243
