Submicroscopic porosity, small-angle

Small-Angle X-Ray Scattering of the Submicroscopic Porosity of Some Low-Rank Coals... 

Small-angle x-ray scattering is often useful for investigating submicroscopic structures—that is, structures with dimensions between about 4 and 2000 A (1). This technique has been employed in several studies of the porosity and other submicroscopic structure of coals (2—9). 

BALE ET AL. Submicroscopic Porosity by Small-Angle X-Ray Scattering... 

Bale HD, Schmidt PW. Small-angle X-ray-scattering investigation of submicroscopic porosity with fractal properties. Phys Rev Lett 1984 53 596-599. 

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