One application of MIST is to develop response curves for light-scattering-based particle scanners. These devices have a relatively collimated beam incident on a sample and collect scattered light over a relatively large solid angle. The scattered signal is often attributed to the presence of particles, and the signal can be correlated with the size of the particle. It is often useful to estimate the signal that one would expect for different sphere sizes. The example code scanner.mist is an example of such a calibration, using the Bobbert-Vlieger theory for scattering by a sphere on a surface. The code integrates the integrated cross section between polar angles narrow = 25° and wide = 70° for particle diameters from 0.05 μm to 0.500 μm.
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Latest MIST Version: 4.10 (October 2017)