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Journal of Nanotechnology
Volume 2018 (2018), Article ID 6513634, 7 pages
https://doi.org/10.1155/2018/6513634
Research Article

Modeling of Scattering Cross Section for Mineral Aerosol with a Gaussian Beam

1College of Software Engineering, Chengdu University of Information Technology, Chengdu 610225, China
2College of Engineering, Sichuan Normal University, Chengdu 610068, China
3College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China

Correspondence should be addressed to Hong Tang; moc.621@nebnebgnat

Received 31 December 2017; Accepted 28 January 2018; Published 28 March 2018

Academic Editor: Xiaoke Ku

Copyright © 2018 Wenbin Zheng and Hong Tang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Based on the generalized Lorenz Mie theory (GLMT), the scattering cross section of mineral aerosol within the Gaussian beam is investigated, and an appropriate modeling of the scattering cross sections for the real mineral aerosols including the feldspar, quartz, and red clay is proposed. In this modeling, the spheroid shape is applied to represent the real nonspherical mineral aerosol, and these nonspherical particles are randomly distributed within the Gaussian beam region. Meanwhile, the Monte Carlo statistical estimate method is used to determine the distributed positions of these random nonspherical particles. Moreover, a method for the nonspherical particles is proposed to represent the scattering cross section of the real mineral aerosols. In addition, the T matrix method is also used to calculate the scattering cross sections of the spheroid particles in order to compare the scattering properties between the plane wave and the Gaussian wave. Simulation results indicate that fairly reasonable results of the scattering cross sections for the mineral aerosols can be obtained with this proposed method, and it can provide a reliable and efficient approach to reproduce the scattering cross sections of the real randomly distributed mineral aerosols illuminated by the Gaussian beam.