Title :
Non-destructive detection of chemicals by scattering and fingerprinting in the THz band
Author :
Yamashita, M. ; Ogawa, Y. ; Shibuya, T. ; Otani, C. ; Kawase, K. ; Inoue, H. ; Kanamori, T.
Author_Institution :
SI Seiko Co. Ltd., Matsuyama, Japan
fDate :
27 Sept.-1 Oct. 2004
Abstract :
In this paper, we show that the non-destructive detection of chemicals hidden in envelopes can be achieved using terahertz radiation in a simple two-step procedure: first, scattering of the terahertz waves is an indicator of the presence of powders in the envelope; second, the identification of the chemicals is done by spectral fingerprinting.
Keywords :
Fourier transform spectra; chemical sensors; infrared spectra; nondestructive testing; powders; submillimetre wave detectors; THz band; chemical detection; chemical identification; nondestructive detection; powders; spectral fingerprinting; terahertz radiation; terahertz waves; Chemicals; Drugs; Envelope detectors; Fingerprint recognition; Optical scattering; Particle scattering; Postal services; Powders; Spectroscopy; X-ray scattering;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422136
