Title :
Radiation-induced suppression of charge injection into low density polyethylene
Author :
Markiewicz, A. ; Fleming, R.J.
Author_Institution :
Sch. of Appl. Sci., Monash Univ., Churchill, Vic., Australia
Abstract :
Thermally stimulated conductivity (TSC) and thermally stimulated depolarisation (TSD) current measurements have been used to study the effects of X-irradiation on charge injection into thin films of low density polyethylene. It was found that, for evaporated gold electrodes and a nominal applied field strength of 100 kV/cm, charge injection into an unirradiated sample commences around -50°C, passes through a maximum around -20°C, falls to a minimum around 0°C and then increases rapidly. An X-ray dose of 12 kGy at room temperature appeared to suppress charge injection at temperatures below about 30°C. The TSD curves of X-irradiated samples showed a new peak around 90°C
Keywords :
X-ray effects; electrets; polyethylene insulation; polymer films; thermally stimulated currents; -20 C; -50 to 0 C; 12 kGy; 30 C; 90 C; X-ray dose; charge injection; low density polyethylene; radiation-induced suppression; thermally stimulated conductivity; thermally stimulated depolarisation current; thin films; Current measurement; Electrodes; Gold; Heating; Nitrogen; Polyethylene; Temperature control; Temperature distribution; Thermal conductivity; Transistors;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514798
