Application of forward-angle light scattering to measured flocculation point of asphaltenes and evaluation of flocks dimensions

1999 ◽  
Author(s):  
Hector M. Gutierrez ◽  
Alberto Fernandez ◽  
Sonia Goncalves Abreu ◽  
Jimmy A. Castillo ◽  
Jannett Hung
Keyword(s):  
Light Scattering ◽  
Forward Angle

Theoretical studies on particle shape classification based on simultaneous small forward angle light scattering and aerodynamic sizing

2016 ◽  
Vol 25 (3) ◽  
pp. 034201 ◽  
Author(s):  
Jin-Bi Zhang ◽  
Lei Ding ◽  
Ying-Ping Wang ◽  
Li Zhang ◽  
Jin-Lei Wu ◽  
...  
Keyword(s):  
Light Scattering ◽  
Particle Shape ◽  
Shape Classification ◽  
Theoretical Studies ◽  
Forward Angle

scholarly journals Identification of cell asymmetry and orientation by light scattering.

1977 ◽  
Vol 25 (7) ◽  
pp. 790-795 ◽  
Author(s):  
M R Loken ◽  
D R Parks ◽  
L A Herzenberg
Keyword(s):  
Light Scattering ◽  
Cell Surface ◽  
Blood Cells ◽  
Incident Beam ◽  
Model System ◽  
Forward Angle ◽  
Cell Orientation ◽  
Cell Asymmetry ◽  
Scatter System ◽  
Selection Of

Light scattering from chicken red blood cells has been used as a model system to identify the asymmetry of cells. The histogram for forward angle light scattering for these cells is bimodal, the signal size being dependent on the cell orientation. A dual orthogonal scatter system is used to conclusively demonstrate this orientational variation in signal. A third scattering system, using a single incident beam with two orthogonal detectors, is used to further characterize the orientational variation of the scatter signal. In this third system it is shown that the signal in a detector set 90 degrees from the incident beam collects light reflected from the cell surface. The optical selection of cells in specific orientations using these systems may circumvent the need to physically orient cell in flow systems.

scholarly journals Light scattering with stream-in-air flow systems.

1979 ◽  
Vol 27 (1) ◽  
pp. 264-267 ◽  
Author(s):  
G C Salzman ◽  
M E Wilder ◽  
J H Jett
Keyword(s):  
Refractive Index ◽  
Light Scattering ◽  
Air Flow ◽  
Mie Theory ◽  
Detector Response ◽  
Theoretical Base ◽  
Forward Angle ◽  
Scattering Measurements ◽  
Flow Systems ◽  
Cell Sizing

Both forward angle and 90 degrees light-scattering measurements have been used for cell sizing with stream-in-air flow systems with very little theoretical base for the measurements. Mie theory calculations are compared with measurements on plastic microspheres. Detector response for homogeneous spheres is shown to be sensitive to refractive index.

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