The present paper discusses the residual space charge distribution in gamma-irradiated polyethylene formed with dc voltage, which was measured using the pulsed electroacoustic (PEA) method. The PEA method is one of advanced non-destructive techniques to measure the space charge distribution with a high sensitivity and reproducibility. From the experimental result, it became clear that a large amount of positive charges existing near the cathode in gamma-irradiated polyethylene enhance the electric field at the cathode interface. Under short circuit condition, the strength of this electric field by the space charge is sometimes more than two times of the applied field. On the other hand, almost no space charge was observed in the non-irradiated sample.
|出版ステータス||Published - 1994 12月 1|
|イベント||Proceedings of the 1994 IEEE 4th International Conference on Properties and Applications of Dielectric Materials. Part 2 (of 2) - Brisbane, Aust|
継続期間: 1994 7月 3 → 1994 7月 8
|Other||Proceedings of the 1994 IEEE 4th International Conference on Properties and Applications of Dielectric Materials. Part 2 (of 2)|
|Period||94/7/3 → 94/7/8|
ASJC Scopus subject areas