Light scattering by an infinite cylinder of arbitrarily smooth cross section based on vectorial complex ray model

2020 ◽  
Vol 467 ◽  
pp. 125705
Author(s):  
Qingwei Duan ◽  
Xiang’e Han ◽  
Kuan Fang Ren
Keyword(s):  
Light Scattering ◽  
Cross Section ◽  
Infinite Cylinder ◽  
Complex Ray

Time-Resolved Small Angle X-Ray Scattering and Dynamic Light Scattering Studies of Sol-Gel Transition in Gelatin

1988 ◽  
Vol 143 ◽  
Author(s):  
Dan Q. Wu ◽  
Benjamin Chu
Keyword(s):  
Light Scattering ◽  
Cross Section ◽  
Sol Gel ◽  
Slow Mode ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Saxs Intensity ◽  
Sol Gel Transition ◽  
Gel Transition

AbstractStructural and dynamical properties of an aqueous gelatin solution (5 wt%, 0.1M NaCi, pH=7) in a sol-gel transition were studied by time-resolved small angle x-ray scattering (SAXS) and dynamic light scattering (DLS) after quenching the gelatin sol at ∼45”C to 11°C. SAXS intensity measurements suggested the presence of gel fibrils which grew initially in cross-section. The average cross-section of the gel fibrils reached a constant value after an initial growth period of ∼800 sec. Further increase in SAXS intensity could be attributed to the increase in the length of the gel fibrils. Photon correlation, on the other hand, clearly showed two relaxation modes in both the sol and the gel (∼1 hr after the quenching process) states: a fast cooperative diffusion mode which remained constant from the sol to the gel state after correction for the temperature dependence of solvent viscosity; and a slow mode that could be attributed to the self-diffusion of the “free” gelatin chains and aggregates. The slow mode contribution to the time correlation function was reduced from ∼40% in sol to ∼20% in gel signaling a decrease but not the elimination of “free” particles in the gel network. The decrease in the intensity contribution by the slow mode is, however, accompanied by a large increase in the characteristic line-width distribution.

Evaluation of the Cross Section of Elongated Micelles by Static and Dynamic Light Scattering

2012 ◽  
Vol 116 (14) ◽  
pp. 4328-4337 ◽  
Author(s):  
Gerald Guerin ◽  
Fei Qi ◽  
Graeme Cambridge ◽  
Ian Manners ◽  
Mitchell A. Winnik
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Cross Section ◽  
The Cross

Correction to “Evaluation of the Cross Section of Elongated Micelles by Static and Dynamic Light Scattering”

2012 ◽  
Vol 116 (25) ◽  
pp. 7603-7603 ◽  
Author(s):  
Gerald Guerin ◽  
Fei Qi ◽  
Graeme Cambridge ◽  
Ian Manners ◽  
Mitchell A. Winnik
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Cross Section ◽  
The Cross
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