Calibration for a count rate-dependent time correlation function and a random noise reduction in pulsed dynamic light scattering

A pulsed dynamic light scattering (DLS) system, which would be potentially applied to nonlinear DLS with molecular selectivity, was developed by combining a sub-nanosecond pulsed laser with a software-based detection system. The distortion of the time correlation function due to the clipping effect...

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Detalles Bibliográficos
Autores principales: Hiroi, Takashi, Samitsu, Sadaki, Kano, Hideaki, Ishioka, Kunie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2022
Materias:
Advancements in Instrumentation
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8971174/
https://www.ncbi.nlm.nih.gov/pubmed/35286629
http://dx.doi.org/10.1007/s44211-022-00071-0
Descripción
Sumario:A pulsed dynamic light scattering (DLS) system, which would be potentially applied to nonlinear DLS with molecular selectivity, was developed by combining a sub-nanosecond pulsed laser with a software-based detection system. The distortion of the time correlation function due to the clipping effect in the photon counting module, and the resulting underestimation of the particle size, were successfully calibrated based on a theoretical simulation. The effective removal of random noises was also demonstrated via time gating synchronized to the laser pulses. GRAPHICAL ABSTRACT: [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s44211-022-00071-0.

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