Terahertz scattering from a rough granular surface

• Published in: 2007 IEEE Antennas and Propagation Society International Symposium pp. 4929 - 4932
• Main Authors: Zurk, L.M., Orlowski, B., Sundberg, G., Zhen Zhou, Antao Chen
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-06-2007
• Subjects: Density measurement; Dielectric measurements; Electrochemical impedance spectroscopy; Explosives; Frequency measurement; Particle measurements; Reflection; Rough surfaces; Scattering; Surface roughness
• ISBN: 9781424408771; 1424408776
• ISSN: 1522-3965
• DOI: 10.1109/APS.2007.4396650

For reflection spectroscopy in particular, the measured response from an explosive material may be dominated by rough surface scattering, which is in turn influenced by a number of factors including: the size and density of explosive grains and air voids, the dielectric contrast, the angle of incidence and scattering, and the operating frequency. In this paper, scattering from a granular explosive is explored by using variable grit sandpaper as a surrogate for the explosive interface. The experimental results show that the scattered field is strongly effected by the surface roughness.