NMR imaging of internal features in wood

Document Type

Article

Publication Date

6-1-1989

Abstract

Two white oak logs and one black cherry log were examined with a nuclear magnetic resonance (NMR) scanner to view internal features of the wood. As a result of inherent moisture variations associated with various characteristics of the log, clear images were obtained to reveal not only normal features such as sapwood-heartwood, earlywood-latewood, and wood rays but also defects as varied as reaction wood, wetwood, gum spots, and knots. Further scanning of additional species, faster scanning methods, development of algorithms for image interpretation, and a lower cost for the NMR scanner would facilitate the early adoption of this technology that improves lumber production efficiency.

Publication Source (Journal or Book title)

Forest Products Journal

First Page

43

Last Page

49

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