28 November 2007 Influence of temperature on fractal dimension of dynamic scattered light intensity signal of ultrafine particles
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Abstract
The fluctuation of the dynamic scattered light of particles was characterized with fractal dimensions, and the influence of temperature on the fractal dimension was discussed. In the experiments, the fractal dimensions of dynamic scattered light intensity signal of particles with the diameter of 60nm, 90nm, 200nm, 300nm and 450nm, were obtained under the temperatures of 18°C, 20°C, 22°C, 24°C, 26°C, 28°C, 30°C. The experimental results shown the monotony relationship between fractal dimension of scattered light intensity signal of particles and the temperature in the particle system, which indicate that the fractal dimension of scattered light signal correlate well not only with the particle size but also the temperature of the suspension. Under the condition of constant temperature in the cuvette, the smaller the particles, the larger their fractal dimensions. For the same particle system, the higher the temperature, the larger the fractal dimensions of dynamic scattered light. By using two-dimensional interpolation surface chart of fractal dimensions, the polydisperse particle system were measured.
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Jin Shen, Boxue Tan, Qiang Ding, Shulian Yang, "Influence of temperature on fractal dimension of dynamic scattered light intensity signal of ultrafine particles", Proc. SPIE 6834, Optical Design and Testing III, 68341W (28 November 2007); doi: 10.1117/12.754335; https://doi.org/10.1117/12.754335
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