Ray Tracing Model for Terahertz Inspection of Spray On Foam Insulation (SOFI)

Author

Melapudi, V.R. ; Udpa, Satish S. ; Udpa, Lalita ; Winfree, W.P.

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI

fYear

0

fDate

0-0 0

Firstpage

421

Lastpage

421

Abstract

Terahertz imaging techniques are beginning to find many applications in areas such as nondestructive evaluation, biomedical imaging and homeland security. The NASA spray on foam insulation (SOFI) inspection is a critical application where terahertz imaging is used to detect disbonds and delamination between SOFI and the substrate metal (external tank). This paper discusses a ray-tracing model for the high frequency inspection system. Model based inversion techniques for the characterization of defects is also proposed

Keywords

inspection; insulation; metal foams; ray tracing; spraying; submillimetre wave imaging; NASA; biomedical imaging; high frequency inspection system; homeland security; model based inversion techniques; nondestructive evaluation; ray tracing model; spray on foam insulation; substrate metal; terahertz imaging techniques; terahertz inspection; Biomedical imaging; Delamination; Frequency; Inspection; Insulation; NASA; Optical imaging; Ray tracing; Spraying; Terrorism;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1633211

Filename

1633211