Title :
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
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;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633211
