Detection and identification of explosives using terahertz pulsed spectroscopic imaging

被引：630

作者：

Shen, YC ^{[1
]}

Lo, T ^{[1
]}

Taday, PF ^{[1
]}

Cole, BE ^{[1
]}

Tribe, WR ^{[1
]}

Kemp, MC ^{[1
]}

机构：

[1] TeraView Ltd, Cambridge CB4 0WS, England

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 24期

关键词：

D O I：

10.1063/1.1946192

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The absorption spectrum of the explosive 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) has been measured using a conventional Fourier transform infrared spectroscopy and by terahertz pulsed spectroscopy. Seven absorption features in the spectral range of 5 - 120 cm(-1) have been observed and identified as the fingerprint of RDX. Furthermore, the spatial distribution of individual chemical substances including RDX, has been mapped out using reflection terahertz spectroscopic imaging in combination with component spatial pattern analysis. This is the terahertz spectroscopy and chemical mapping of explosives obtained using reflection terahertz measurement, and represents a significant advance toward developing a terahertz pulsed imaging system for security screening of explosives. (c) 2005 American Institute of Physics.

引用

收藏

页码：1 / 3

页数：3

相关论文

共 13 条

[1] Terahertz spectroscopy [J].

Beard, MC ;

Turner, GM ;

Schmuttenmaer, CA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7146-7159

[2] Through Container THz sensing: applications for explosives screening [J].

Cook, DJ ;

Decker, BK ;

Maislin, G ;

Allen, MG .

TERAHERTZ AND GIGAHERTZ ELECTRONICS AND PHOTONICS III, 2004, 5354 :55-62

[3] Material parameter estimation with terahertz time-domain spectroscopy [J].

Dorney, TD ;

Baraniuk, RG ;

Mittleman, DM .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2001, 18 (07) :1562-1571

[4] Materials for terahertz science and technology [J].

Ferguson, B ;

Zhang, XC .

NATURE MATERIALS, 2002, 1 (01) :26-33

[5]

Gozani T., 1986, Journal of energetic materials, V4, P377, DOI DOI 10.1080/07370658608011351

[6] Security applications of terahertz technology [J].

Kemp, MC ;

Taday, PF ;

Cole, BE ;

Cluff, JA ;

Fitzgerald, AJ ;

Tribe, WR .

TERAHERTZ FOR MILITARY AND SECURITY APPLICATIONS, 2003, 5070 :44-52

[7] Temperature-dependent low-frequency vibrational spectra of purine and adenine [J].

Shen, YC ;

Upadhya, PC ;

Linfield, EH ;

Davies, AG .

APPLIED PHYSICS LETTERS, 2003, 82 (14) :2350-2352

[8] Using terahertz pulse spectroscopy to study the crystalline structure of a drug: A case study of the polymorphs of ranitidine hydrochloride [J].

Taday, PF ;

Bradley, IV ;

Arnone, DD ;

Pepper, M .

JOURNAL OF PHARMACEUTICAL SCIENCES, 2003, 92 (04) :831-838

[9] Noncovalent intermolecular forces in polycrystalline and amorphous saccharides in the far infrared [J].

Walther, M ;

Fischer, BM ;

Jepsen, PU .

CHEMICAL PHYSICS, 2003, 288 (2-3) :261-268

[10] Far-infrared vibrational spectra of all-trans, 9-cis and 13-cis retinal measured by THz time-domain spectroscopy [J].

Walther, M ;

Fischer, B ;

Schall, M ;

Helm, H ;

Jepsen, PU .

CHEMICAL PHYSICS LETTERS, 2000, 332 (3-4) :389-395