Abstract
| Language | English |
|---|---|
| Title of host publication | Optical Methods for Inspection, Characterization, and Imaging of Biomaterials IV |
| Editors | Pietro Ferraro, Simonetta Grilli, Monika Ritsch-Marte, Christoph K. Hitzenberger |
| Place of Publication | Bellingham, Washington |
| Number of pages | 7 |
| Volume | 11060 |
| DOIs | |
| Publication status | Published - 25 Jul 2019 |
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Keywords
- diffuse reflectance
- diffuse approximation
- DDSCAT
- aspect ratio
Cite this
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The effect of particle aspect ratio on spatially and angularly resolved vis-NIR spectroscopy of suspensions. / Stoliarskaia, Daria; Thomson, Kelly; Lue, Leo; Chen, Yi-Chieh.
Optical Methods for Inspection, Characterization, and Imaging of Biomaterials IV. ed. / Pietro Ferraro; Simonetta Grilli; Monika Ritsch-Marte; Christoph K. Hitzenberger. Vol. 11060 Bellingham, Washington, 2019. 1106019.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
TY - GEN
T1 - The effect of particle aspect ratio on spatially and angularly resolved vis-NIR spectroscopy of suspensions
AU - Stoliarskaia, Daria
AU - Thomson, Kelly
AU - Lue, Leo
AU - Chen, Yi-Chieh
N1 - Copyright 2019 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
PY - 2019/7/25
Y1 - 2019/7/25
N2 - The particle characteristics in a suspension affect the performance and quality of the end product of many chemical industries. The shape of the suspended particles can be influenced by changes in the manufacturing process conditions. Thus, there is a need for a robust method for continuous monitoring of particle characteristics through the process. This study investigates the feasibility of using spatially and angularly resolved diffuse reflectance measurements as a method of determining particle shape. A forward calculation was developed using the discrete dipole approximation to estimate optical properties of the single particle and the diffuse approximation for the reflectance of the particle suspension. The method was used to study aqueous suspensions of randomly-oriented polystyrene ellipsoids. Our objectives were to determine and elucidate the contribution of aspect ratio on optical measurement in vis-NIR spectra. The results suggest that the method is suitable for determining particle shape for suspensions where the particle and the solvent have significantly different optical properties. For these systems, the study suggests that diffusion reflectance measurements can be developed into an in-line method for particle shape determination
AB - The particle characteristics in a suspension affect the performance and quality of the end product of many chemical industries. The shape of the suspended particles can be influenced by changes in the manufacturing process conditions. Thus, there is a need for a robust method for continuous monitoring of particle characteristics through the process. This study investigates the feasibility of using spatially and angularly resolved diffuse reflectance measurements as a method of determining particle shape. A forward calculation was developed using the discrete dipole approximation to estimate optical properties of the single particle and the diffuse approximation for the reflectance of the particle suspension. The method was used to study aqueous suspensions of randomly-oriented polystyrene ellipsoids. Our objectives were to determine and elucidate the contribution of aspect ratio on optical measurement in vis-NIR spectra. The results suggest that the method is suitable for determining particle shape for suspensions where the particle and the solvent have significantly different optical properties. For these systems, the study suggests that diffusion reflectance measurements can be developed into an in-line method for particle shape determination
KW - diffuse reflectance
KW - diffuse approximation
KW - DDSCAT
KW - aspect ratio
U2 - 10.1117/12.2530187
DO - 10.1117/12.2530187
M3 - Conference contribution book
VL - 11060
BT - Optical Methods for Inspection, Characterization, and Imaging of Biomaterials IV
A2 - Ferraro, Pietro
A2 - Grilli, Simonetta
A2 - Ritsch-Marte, Monika
A2 - Hitzenberger, Christoph K.
CY - Bellingham, Washington
ER -