Terahertz imaging of water trees generated in low-density polyethylene

Ryo Sato, Marina Komatsu, Norikazu Fuse, Yoshinobu Nakamichi, Maya Mizuno, Kaori Fukunaga, Yoshimichi Ohki

    Research output: Contribution to journalArticle


    Research was carried out whether it is possible to detect water trees in a low density polyethylene sheet by terahertz light. The attenuation of the reflected intensity of THz light was observed on several points in the sample under a polyvinylchloride sheet. The intensity distribution of the reflected light agrees with the distribution of water trees in the sample. Therefore, the distribution of water trees would be detectable even if the trees are invisible to naked eyes.

    Original languageEnglish
    Pages (from-to)148-149
    Number of pages2
    JournalIEEJ Transactions on Fundamentals and Materials
    Issue number2
    Publication statusPublished - 2012



    • Non-destructive analysis
    • Terahertz imaging
    • Water tree

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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