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Theoretical analysis of the particle properties and polarization measurements made in microgravity

Abstract : We propose a new model to describe the shapes of stochastic polyhedra used in the microgravity experiment PROGRA(2) on board the Airbus A300 aircraft. The polarization measurements of scattering of visible light by boron carbide (B4C) particles with sizes between 9 and 88 gm can nicely be explained with the derived shape statistics and the (currently unknown) refractive index obtained. For the latter we derive 2 (-0.15/ + 0.1) + 0.04i(-0.0025/ + 0.015) at 632.8 nm wavelength. The polarization method is a reliable and sensitive means to estimate various particle properties in various remote. sensing applications, including the planetary sciences.
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https://hal-insu.archives-ouvertes.fr/insu-03342603
Contributor : Nathalie Pothier <>
Submitted on : Monday, September 13, 2021 - 2:48:49 PM
Last modification on : Wednesday, September 15, 2021 - 3:16:43 AM

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A Penttilä, K Lumme, J.C Worms, E Hadamcik, Jean-Baptiste Renard, et al.. Theoretical analysis of the particle properties and polarization measurements made in microgravity. Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2003, 79-80, pp.1043-1049. ⟨10.1016/S0022-4073(02)00338-2⟩. ⟨insu-03342603⟩

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