Hm. Banford et al., DIAGNOSTICS OF RADIATION EXPOSURE OF DIELECTRICS BY FLUORESCENCE TECHNIQUES, IEEE transactions on dielectrics and electrical insulation, 2(3), 1995, pp. 503-505
We have examined the inherent fluorescence of epoxy resin and polyethy
lene samples exposed to radiation from a Co-60 gamma source. We find t
hat the fluorescence intensity increases with radiation dose. There is
also a significant change, in polyethylene in particular, of the shap
e of the fluorescence spectrum. Accordingly, we suggest that a fluores
cence intensity ratio approach will be useful, as it is in diagnostics
of power transmission cable insulation aging, to assess the aging of
dielectrics in radiation environments.