ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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3
Issue
vol 60 / MARCH, 2017
Article
UDC 535.434:535-7,681.7.08

AUTOCORRELATION FUNCTION OF SCATTERED RADIATION IN ATTENUATED TOTAL REFLECTION SCHEME FOR NANOPARTICLE SIZE MEASUREMENT

I. S. Doronin
Far Eastern State Transport University, Department of Optical Communication, Khabarovsk; Post-Graduate Student


K. N. Okishev
Far Eastern State Transport University, Department of Optical Communication, Khabarovsk; Head of the Department


Y. M. Karpets
Far Eastern State Transport University, Department of Optical Communication, Khabarovsk; Professor


N. M. Kireeva
Far Eastern State Transport University, Department of Physics, Khabarovsk ; Lecturer


Abstract.   The method of nanoparticles size measurement based on photon correlation analysis is considered. An attenuated total reflectance scheme is proposed for reduction of influence from convective flows on the measurement accuracy. Autocorrelation function of scattered light intensity is determined for the scheme, and the proposed approach is shown to afford a significant decrease in time required for particle size measurement and an improvement in accuracy of the method.
Keywords:   autocorrelation function, photon-correlation spectroscopy, nanoparticles, dynamic light scattering, attenuated total reflectance.