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Mitigating Corrosion Under Insulation and Supporting the Longevity of Industrial Pipe Insulating Systems

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Backscatter

Last updated: July 19, 2024

What Does Backscatter Mean?

Backscatter refers to the dispersion of radiation or particles in a direction that is opposite to their source of initiation due to the particles reflecting in a medium and then traveling back towards the originating source.

Backscattering is used to perform a specific type of corrosion monitoring analysis known as Rutherford backscattering spectroscopy (RBS). RBS facilitates a type of corrosion analysis regarding the thickness of a corrosion prevention film such as an inhibitor film.

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Corrosionpedia Explains Backscatter

Rutherford backscattering spectroscopy (RBS) is often used as an alternative to ellipsometry, which is an optical-based process used for film thickness measurements.

RBS energy spectra are used for composition and depth profile measurements. These profile measurements are obtained through energy loss of the ion beam evaluation. RBS results in precise measurements for spectrometer gain and exhibits lower error rates than other techniques. Thickness measurements of a metal coating layer above the substrate have become possible in an in situ form through RBS.

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