1 December 1993 Design review of an instrument to map low-level hydrocarbon contamination
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An instrument capable of measuring and mapping hydrocarbon contamination densities as low as 3 milligrams/square foot has been developed for use in pre-bonding inspection of spacecraft components. The instrument makes use of the 3.4 micrometer absorption band present in hydrocarbons. Measurements above, one, and below the band are made to compensate for effects due to variations in substrate roughness. The instrument, dubbed 'SurfMap- IRTM, has been tested on substrates of aluminum and steel.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brett D. Swimley, Brett D. Swimley, Mary W. Knighton, Mary W. Knighton, Vince C. Skurdal, Vince C. Skurdal, Lee H. Pearson, Lee H. Pearson, John C. Stover, John C. Stover, } "Design review of an instrument to map low-level hydrocarbon contamination", Proc. SPIE 1995, Optical Scattering: Applications, Measurement, and Theory II, (1 December 1993); doi: 10.1117/12.162641; https://doi.org/10.1117/12.162641

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