Terahertz measurement and imaging detection of delamination and water intrusion in ground based radome panels

David Zimdars; Jeffrey White; Gregg Sucha; G. Fichter; G. Stuk; C. Megdanoff; A. Chernovsky; S. L. Williamson

doi:10.1117/12.718732

4 May 2007 Terahertz measurement and imaging detection of delamination and water intrusion in ground based radome panels

David Zimdars, Jeffrey White, Gregg Sucha, G. Fichter, G. Stuk, C. Megdanoff, A. Chernovsky, S. L. Williamson

Author Affiliations +

Proceedings Volume 6549, Terahertz for Military and Security Applications V; 654906 (2007) https://doi.org/10.1117/12.718732
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

We demonstrate the location and identification of delaminations and water intrusion in advanced composite materials used in ground based radome panels, shelters and towers using time domain terahertz imaging. Water has a very high absorption in the THz spectral region in comparison to polymer foam and fiberglass, so the method is very sensitive to water intrusion. The sub-picosecond near single cycle electromagnetic images enabled identification of delaminations of the fiberglass shell and foam. We report a novel time domain terahertz non-destructive evaluation control system, which is suitably portable for applications such as field examination of radome composites.

Citation Download Citation

David Zimdars, Jeffrey White, Gregg Sucha, G. Fichter, G. Stuk, C. Megdanoff, A. Chernovsky, and S. L. Williamson "Terahertz measurement and imaging detection of delamination and water intrusion in ground based radome panels", Proc. SPIE 6549, Terahertz for Military and Security Applications V, 654906 (4 May 2007); https://doi.org/10.1117/12.718732

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available