Terahertz imaging of iron powder in low density polyethylene sheets

Takuya Kozai; Daisuke Odaka; Yoshimichi Ohki; Takashi Saitou; Takanori Yamazaki

doi:10.1541/ieejfms.137.311

Terahertz imaging of iron powder in low density polyethylene sheets

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

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	311-312
Number of pages	2
Journal	IEEJ Transactions on Fundamentals and Materials
Volume	137
Issue number	5
DOIs	https://doi.org/10.1541/ieejfms.137.311
Publication status	Published - 2017

Keywords

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

ASJC Scopus subject areas

Electrical and Electronic Engineering

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AU - Kozai, Takuya

AU - Odaka, Daisuke

AU - Ohki, Yoshimichi

AU - Saitou, Takashi

AU - Yamazaki, Takanori

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Imaging

KW - Iron powder

KW - Low-density polyethylene

KW - Terahertz time domain spectroscopy

KW - Terahertz wave

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Terahertz imaging of iron powder in low density polyethylene sheets

Abstract

Keywords

ASJC Scopus subject areas

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