Analyzing dust particle size and size distribution on extracted particles by SEM and comparing with light scattering techniques

Author:

Petersen Andreas1ORCID,Wötzel Jakob1,Zamponi Christiane2,Kobus Julia3ORCID,Wolf Sebastian34ORCID,Greiner Franko14ORCID

Affiliation:

1. Institute of Experimental and Applied Physics Kiel University Kiel Germany

2. Institute of Material Science Kiel University Kiel Germany

3. Institute of Theoretical Physics and Astrophysics Kiel University Kiel Germany

4. Kiel Nano, Surface and Interface Science KiNSIS Kiel University Kiel Germany

Abstract

AbstractThis study investigates the measurement of plasma‐grown nanoparticles, comparing ex situ scanning electron microscopy (SEM) and an in situ light scattering method which is based on Mie theory and utilizes a neural network for evaluation. The research reveals that the particle size distribution (PSD) is normal and very narrow, supporting the common assumption of monodisperse particle clouds. Importantly, the study finds that the spread of the PSD increases proportionally with the mean size, suggesting varied growth rates based on the radius of the spherical dust grains. Both methods produce consistent results, which encourages the use of the interference‐free, real‐time, light‐based Mie method in similar studies.

Publisher

Wiley

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