SAMPLE

Name : Silicium Carbide

Composition : SiC

Provider : L'Abrasienne company

Albedo : 0,08

Refractive index : 2.67 + 0.03i

Size : 30 - 40 µm

"Total" considers all grains in the images.

"Bright grains" considers only the more luminous grains.

IMPORTANT COMMENTS:

The polarization values are strongly dependent on the brightness values. They increase when the brightness increeses.

The "luminous grains" data are close to those obtained when using photodiodes.

Publications :

   - Worms, J.-C., Renard, J.-B., Hadamcik, E., Levasseur-Regourd, A. C., Gayet, J.-F., Results of the PROGRA2 experiment: an experimental study in microgravity of scattered polarised light by dust particles with large size parameter, Icarus 142, 281-297, 1999.

   - Hadamcik, E., Renard, J.-B., Levasseur-Regourd, A. C., Lasue, J., Alcoufffe, G., Francis, M., Light scattering by agglomerates: Interconnecting size and absorption effects (PROGRA2 experiment), JQSRT, 110, 1755-1770, 2009.

   - Renard, J.-B., Hadamcik, E., Couté, B., Jeannot, M., Levasseur-Regourd, A. C., Wavelength dependence of linear polarization in the visible and near infrared domain for large levitating grains (PROGRA2 instruments), Journal of Quantitative Spectroscopy and Radiative Transfer, 146, 424-430, 2014.