Title :
High-speed hand-held wide aperture time-domain terahertz imaging system
Author :
Zimdars, David ; Fichter, Greg ; Megdanoff, Chris ; Duquette, John ; Murdock, Margaret ; Duling, Irl ; White, Jeff ; Williamson, Steve
Author_Institution :
Picometrix, LLC., Ann Arbor, MI, USA
Abstract :
A hand-held, high-speed time-domain terahertz (TD-THz) reflection line-scanner for non-destructive examination (NDE) is described. The imager scans a line 150 mm wide and collects a TD-THz cross-sectional “B-scan” of the sub-surface structure at rates up to 15 Hz. By rolling the scanner over a surface, a 2D “C-Scan” image can be stitched together from the individual lines at a rate of 25–200 mm/s. The system >15 times faster than gantry imagers. The case is 8.7 in. wide, 12.5 in. long, and 7.9 in. high. The weight is approximately 7 lbs.
Keywords :
Apertures; High speed optical techniques; Inspection; Optical imaging; Optical reflection; Optical surface waves; Optical transmitters; Polymers; Time domain analysis; Ultrasonic imaging;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
