12 August 1986 X-Ray Fluorescence (XRF) Testing for Thickness in On-Site Controlled Construction of Specialty Coatings
Author Affiliations +
Abstract
There are problems in the measurement of thickness of field-applied thick polymer coatings on iron and aluminum substrates. New ways are sought to accomplish this. X-ray fluorescence (XRF) offers a potential measurement technique through assessment of the change in x-ray signal peak intensity on the continuum of radiation as a function of energy. Panels with varying thicknesses were tested. In general, the data show that as coating thickness increases so does the XRF intensity. It has also been found that by adding a zinc marker to the coating on an aluminum substrate a broader spread of intensity readings was obtained than with an iron marker. Homogeneity of the marker in the coating appears to be critical to this potential measurement system, Further research is needed to document the use of XRF instrumentation as a tool for coating thickness measurement.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas W. Oakes, Robert E. Oakes, "X-Ray Fluorescence (XRF) Testing for Thickness in On-Site Controlled Construction of Specialty Coatings", Proc. SPIE 0691, X-Ray Imaging II, (12 August 1986); doi: 10.1117/12.936627; https://doi.org/10.1117/12.936627
PROCEEDINGS
3 PAGES


SHARE
Back to Top