examined with an NMR (nuclear magnetic resonance) 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 such as reaction wood,
wetwood, gum spots, and knots. Further scanning of additional species, faster scanning …