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4 September 2018 Nondestructive characterization of aged paper using spectral and directional reflection measurements
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Abstract
Proper care of aging books in libraries requires nondestructive diagnostic techniques for measuring the condition of the paper. Optical techniques offer nondestructive capability. For this reason, both spectral reflection and visible bidirectional reflectance distribution function measurements (BRDF) are examined. Both new and aged Whatman paper are measured. Spectral measurements are sensitive to changes in the location and width of spectral features in the paper. This can be indicative of paper degradation. BRDF measurements show changes in the paper fiber structure such as broken fibers. Fiber scatter cross sections are modeled using an improved anomalous diffraction approximation and Kubelka- Munk equations.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. E. Thomas, J. Ma, M. B. Airola, and P. McGuiggan "Nondestructive characterization of aged paper using spectral and directional reflection measurements", Proc. SPIE 10750, Reflection, Scattering, and Diffraction from Surfaces VI, 107500F (4 September 2018); https://doi.org/10.1117/12.2323108
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