Title :
Powder detection using THz imaging
Author :
Shaohong Wang ; Ferguson, B. ; Mannella, C. ; Abbott, D. ; Zhang, X.-C.
Author_Institution :
Dept. of Phys., Appl. Phys. & Astron., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
Summary form only given. We have shown that THz imaging can detect powders inside envelopes at a concentration of 80 milligrams/cm/sup 2/ and that in a carefully controlled experiment classification algorithms can be used to differentiate between different types of powders. We have also presented images of bacteria spores inside envelopes and will demonstrate the performance of classification algorithms in detecting B. thuringiensis.
Keywords :
biological techniques; high-speed optical techniques; microorganisms; postal services; powders; submillimetre wave imaging; Anthrax; B. thuringiensis; THz imaging; bacteria spores; bioterrorism; mail envelopes; nondestructive scanning; powder detection; Chirp; Extraterrestrial measurements; Frequency; Fungi; Packaging; Physics; Postal services; Powders; Probes; Pulse measurements;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1033522
