24 September 2009 Nondestructive terahertz imaging for aerospace applications
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Abstract
The full potential of terahertz imaging systems for nondestructive aerospace imaging applications has not been realized due to the lack of data linking damage and defects to terahertz signatures coupled with the complexity of modeling the signatures. Terahertz systems (0.1 - 2.0 THz) may be ideally suited for NDI applications because of the ability of THz radiation to penetrate through substances commonly found on the surfaces of aircraft structures while maintaining the optical resolution required to detect defects. We will discuss several systems that we have used to study the signatures of a set of target samples with known defects.
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Douglas T. Petkie, Douglas T. Petkie, Izaak V. Kemp, Izaak V. Kemp, Carla Benton, Carla Benton, Christopher Boyer, Christopher Boyer, Lindsay Owens, Lindsay Owens, Jason A. Deibel, Jason A. Deibel, Christopher D. Stoik, Christopher D. Stoik, Matthew J. Bohn, Matthew J. Bohn, } "Nondestructive terahertz imaging for aerospace applications", Proc. SPIE 7485, Millimetre Wave and Terahertz Sensors and Technology II, 74850D (24 September 2009); doi: 10.1117/12.830540; https://doi.org/10.1117/12.830540
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