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Proceedings Paper

Portable video rate time domain terahertz line imager for security and aerospace nondestructive examination
Author(s): David Zimdars; G. Fichter; C. Megdanoff; M. Murdock; Irl Duling; Jeffrey White; S. L. Williamson
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Paper Abstract

A portable video rate time-domain terahertz (TD-THz) reflection line-scanner suitable for aerospace destructive examination (NDE) and security inspection is described. The imager scans a line 6 inches wide and collects a TD-THz cross-sectional "B-scan" of the sub-surface structure at rates up to 30 Hz. The imager is hand-held. By rolling the scanner over surface, a radiographic two dimensional "C-Scan" image can be stitched together from the individual lines at a rate of 1-4 inches per second (depending on desired resolution). The case is 8.7 in. wide (12.9 in. with wheels), 12.5 in. long, and 7.9 in. high. The weight is approximately 11 lbs. Example images taken with the scanner of radome THz NDE are shown.

Paper Details

Date Published: 27 April 2010
PDF: 8 pages
Proc. SPIE 7671, Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense, 76710K (27 April 2010); doi: 10.1117/12.850143
Show Author Affiliations
David Zimdars, Picometrix, Inc. (United States)
G. Fichter, Picometrix, Inc. (United States)
C. Megdanoff, Picometrix, Inc. (United States)
M. Murdock, Picometrix, Inc. (United States)
Irl Duling, Picometrix, Inc. (United States)
Jeffrey White, Picometrix, Inc. (United States)
S. L. Williamson, Picometrix, Inc. (United States)

Published in SPIE Proceedings Vol. 7671:
Terahertz Physics, Devices, and Systems IV: Advanced Applications in Industry and Defense
Mehdi Anwar; Nibir K. Dhar; Thomas W. Crowe, Editor(s)

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