Published March 2009 | Version v1
Journal article Metadata-only

Studies on 2,4-DNT Mixtures Using Reflection Terahertz Time Domain Spectroscopy for Explosives Detection

Creators

  • 1. Applied Physics Laboratory, University of Washington, Seattle, WA, 98015 (United States)
  • 2. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China)

Description

Absorption spectra (0.2–1.8 THz) of the mixtures of explosive 2,4-DNT and polyethylene(PE) at different ratios are obtained using reflection terahertz time domain spectroscopy (THz-TDS). The pronounced absorption peak of 2,4-DNT at 1.08 THz is always observed for the mixtures with 2,4-DNT ratios above 20%. Experimental results demonstrate that more applicable and realistic THz-TDS in reflection geometry can be used to distinguish explosive mixed with other material having no THz fingerprints, and has a high potential in the detection of explosives. (condensed matter: electronicstructure, electrical, magnetic, and opticalproperties)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/26/3/037801

Additional details

Identifiers

DOI
10.1088/0256-307X/26/3/037801;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
26
Journal Issue
3
Journal Page Range
[3 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44124202
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION SPECTRA; CONCENTRATION RATIO; DETECTION; EXPLOSIVES; MIXTURES; NITRO COMPOUNDS; POLYETHYLENES; SPECTRAL REFLECTANCE; THZ RANGE; TOLUENE
Descriptors DEC
ALKYLATED AROMATICS; AROMATICS; DIMENSIONLESS NUMBERS; DISPERSIONS; FREQUENCY RANGE; HYDROCARBONS; OPTICAL PROPERTIES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYMERS; POLYOLEFINS; SPECTRA