Particle scattering discs

Is this an Uncorrelated Hard-Disc Fluid In order to answer this question we compute a 2D CLD and test, whether the function is positive everywhere. In this case the equatorial streak can be considered pure particle scattering. 

Apart from the solid regular particles dealt with in 2,3 and 4 above, other simple particle scattering laws include those for hollow spheres, ellipsoids and discs. These have been discussed and summarised in other publicationsand reference to these should be made for further details. 

Equations 6.4 to 6.6 represent the widely used Guinier approximation for globular particles. Approximations pertaining to rod-like and disc-shaped particles using appropriate particle scattering functions can he found in the... 

Eq. 2.19 is derived assuming that a particle scatters as if it were an opaque circular disc of the same projected area positioned normally to the axis of the beam. Because of this assumption, in the Fraunhofer theory the refractive index of material is irrelevant. Fraunhofer diffraction applies to particles 1) whose... 

The reflection spectrum of the atmosphere is a measure of the albedo of the planet (Figure 10.4) and, despite the strong methane absorption in the red, Titan s disc looks orange principally due to scatter from the surface of dense methane-hydrocarbon clouds. Scatter from aerosol particles within the thick clouds obscures the surface of the moon although the radar analysis reveals considerable Chapman layer structure within the atmosphere and some interesting surface features. 

The spectra were run on potassium bromide discs of the specimens at about 0.35% w/w concentration using a Perkin-Elmer Model 21 spectrometer. Microscopic examination of the discs showed that in spite of long grinding, the coal particle size was relatively large (<1(V, except for CGL 105, which contained many particles in the range 10- 50m). Consequently, a fair amount of scatter was observed in the spectra. 

At a specific radial distance the moving particles interrupt and attenuate a light beam, the intensity of which is measured by a photodetector. The particle size is related to the appearance time at the photodetector by means of Stokes Law for centrifugation. The concentration of particles is obtained from the photodetector response and the application of Mie scattering theory.(1) A very Important step in this operation is the formation of a density gradient within the spin fluid to allow a hydrodynamically stable separation of the suspended particles. An accepted method for forming this spin fluid density gradient within the disc cavity is the widely used and patented (2) Joyce-Loebl Buffered Line Start... 

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