Lissajous-like patterns in scatter plots of calibration beads

R.M.P. Doornbos, A.G. Hoekstra, K.E.I. Deurloo, B.G. de Grooth, P.M.A. Sloot, Jan Greve

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    Flow cytometric measurements of light scattering of polystyrene calibration beads revealed remarkable Lissajous-like loops in two-parameter scatter plots. The existence of such loops is shown to be in qualitative agreement with Lorenz-Mie scattering theory of homogeneous spheres. The occurrence of these patterns reflects the extreme particle size dependency of perpendicular light scattering of homogeneous spheres. These effects may give an explanation for the frequently observed phenomenon that polystyrene spheres reveal a relatively large CV in the perpendicular light scattering signals, whereas the CV of the forward light scattering signal is small. We conclude that one should be careful to optimize the perpendicular light scattering channel by minimizing the CV, because there is no linear relationship between instrument alignment quality and the CV of the perpendicular light scattering signals of calibration beads.
    Original languageEnglish
    Pages (from-to)236-242
    Issue number3
    Publication statusPublished - 1994


    • Lorenz-Mie theory
    • Polarization
    • Flow cytometer
    • Small particle light scattering
    • Alignment
    • Instrumentation
    • Mueller matrix
    • Calibration


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