Noninvasive Mail Inspection System with Terahertz Radiation

Using the high penetrability of the terahertz waves and the characteristic absorption spectra in this frequency range, we have built a noninvasive mail inspection system targeting drugs and explosives. The system is composed of two stages; in the first stage, the scattering of a continuous terahertz...

Full description

Saved in:
Bibliographic Details
Published in:Applied spectroscopy 2009-01, Vol.63 (1), p.81-86
Main Authors: Hoshina, Hiromichi, Sasaki, Yoshiaki, Hayashi, Aya, Otani, Chiko, Kawase, Kodo
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using the high penetrability of the terahertz waves and the characteristic absorption spectra in this frequency range, we have built a noninvasive mail inspection system targeting drugs and explosives. The system is composed of two stages; in the first stage, the scattering of a continuous terahertz wave is used for selecting mail that contains concealed powder; in the second stage, the absorption spectrum of the suspicious mail is measured and the material is identified using a terahertz spectrum database. We evaluated the performance and the limits of the inspection system.
ISSN:0003-7028
1943-3530
DOI:10.1366/000370209787169713