Systems and methods for a high capture angle, multiple angle light scattering (MALS) instrument
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United States of America Patent
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Jul 21, 2009
Grant Date -
Nov 16, 2006
app pub date -
May 2, 2006
filing date -
May 2, 2005
priority date (Note) -
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Abstract
A particle detection system uses a reflective optic comprising a curved surface to detect high angle scattered light generated by a particle in a liquid medium, when a laser beam is incident on the particle. When the particles transit the laser beam, light is scattered in all directions and is described by MIE scattering theory for particles about the size of the wavelength of light and larger or Rayleigh Scattering when the particles are smaller than the wavelength of light. By using the reflective optic, the scattered light can be detected over angles that are greater than normally obtainable.
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