Measurement of residual space charge distribution in gamma-irradiated polyethylene

M. Kojima, Y. Tanaka, T. Takada, Y. Ohki

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages479-482
Number of pages4
Publication statusPublished - 1994 Dec 1
Externally publishedYes
EventProceedings of the 1994 IEEE 4th International Conference on Properties and Applications of Dielectric Materials. Part 2 (of 2) - Brisbane, Aust
Duration: 1994 Jul 31994 Jul 8

Other

OtherProceedings of the 1994 IEEE 4th International Conference on Properties and Applications of Dielectric Materials. Part 2 (of 2)
CityBrisbane, Aust
Period94/7/394/7/8

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

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  • Cite this

    Kojima, M., Tanaka, Y., Takada, T., & Ohki, Y. (1994). Measurement of residual space charge distribution in gamma-irradiated polyethylene. 479-482. Paper presented at Proceedings of the 1994 IEEE 4th International Conference on Properties and Applications of Dielectric Materials. Part 2 (of 2), Brisbane, Aust, .