Influence of spatial differential reflection parameters on 2,4,6- trinitrotoluene (TNT) absorption spectra

Thierry Dubroca; Gaël Guetard; Rolf E. Hummel

doi:10.1117/12.918385

4 May 2012 Influence of spatial differential reflection parameters on 2,4,6- trinitrotoluene (TNT) absorption spectra

Thierry Dubroca, Gaël Guetard, Rolf E. Hummel

Proceedings Volume 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII; 83581Y (2012) https://doi.org/10.1117/12.918385
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Differential reflectometry has been shown to be a sensitive and fast tool to detect explosive substances on surfaces such as luggage and parcel. This paper elucidates the influence of several parameters on the sensitivity of the technique. An expression for the reflected intensity that contains the influence of angle of incidence, wavelength of the incident light, and surface roughness has been established. The feature used to identify and detect TNT stems mainly from the diffuse component of the reflected light. This spectral "finger-print" shape does not change by varying these parameters. The maximum sensitivity is obtained for samples which are strongly diffusive and weakly specular.

Citation Download Citation

Thierry Dubroca, Gaël Guetard, and Rolf E. Hummel "Influence of spatial differential reflection parameters on 2,4,6- trinitrotoluene (TNT) absorption spectra", Proc. SPIE 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII, 83581Y (4 May 2012); https://doi.org/10.1117/12.918385

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available