TY - JOUR
T1 - Terahertz imaging of iron powder in low density polyethylene sheets
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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U2 - 10.1541/ieejfms.137.311
DO - 10.1541/ieejfms.137.311
M3 - Article
AN - SCOPUS:85018440120
VL - 137
SP - 311
EP - 312
JO - IEEJ Transactions on Fundamentals and Materials
JF - IEEJ Transactions on Fundamentals and Materials
SN - 0385-4205
IS - 5
ER -