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Rev Sci Instrum. 2013 Apr;84(4):043704. doi: 10.1063/1.4801852.

SODI-COLLOID: a combination of static and dynamic light scattering on board the International Space Station.

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  • 1Human Spaceflight Directorate, European Space Agency, Noordwijk, The Netherlands.


Microgravity research in space is a complex activity where the often scarce resources available for the launch, accommodation, and operation of instrumentation call for a careful experiment planning and instrument development. In this paper we describe a module of the Selectable Optical Diagnostic Instrument, that has been designed as a compact optical diagnostic instrument for colloidal physics experiments. The peculiarity of the instrument is the combination of a novel light scattering technique known as near field scattering and standard microscopy with a low-coherence laser light source. We describe its main design features, as well as measurement results on colloidal aggregation taken on the International Space Station.

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