JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Original Papers
An Optical Method to Detect Amount of Particles Deposited on a Substrate
Ko HigashitaniKimihiko YasumuraTakamasa Maki
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1995 Volume 28 Issue 5 Pages 501-505

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Abstract

It is examined whether the principle of reflectometry, developed to measure the thickness of a thin layer on a surface, is applicable to detecting quantitatively the amount of fine particles deposited on a substrate. It is found that the relative difference of parallel and perpendicular components of the laser beam reflected on the surface is proportional to the particle coverage if experimental conditions are suitably selected, and that this principle is able to be used to detect with high sensitivity in-situ the amount of particles.

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© 1995 The Society of Chemical Engineers, Japan
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