Terahertz imaging of iron powder in low density polyethylene sheets

Takuya Kozai, Daisuke Odaka, Yoshimichi Ohki*, Takashi Saitou, Takanori Yamazaki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


If powder of iron is included in the insulation of a polymer-insulated cable during its manufacturing process, breakdown or a water tree would be triggered from there. In this study, we mixed powder of iron into a sheet of low-density polyethylene and measured spatial distributions of absorption at terahertz (THz) frequencies. As a result, it has become clear that the absorption increases in the whole range from 0.5 to 5.0 THz at the places where the powder exists, even if the sheet is covered with an opaque carbon-black-loaded polyethylene sheet.

Original languageEnglish
Pages (from-to)311-312
Number of pages2
JournalIEEJ Transactions on Fundamentals and Materials
Issue number5
Publication statusPublished - 2017


  • Imaging
  • Iron powder
  • Low-density polyethylene
  • Terahertz time domain spectroscopy
  • Terahertz wave

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Terahertz imaging of iron powder in low density polyethylene sheets'. Together they form a unique fingerprint.

Cite this