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    Author(s): Francis G. Wagner; Fred W. Taylor; Douglas S. Ladd; Charles W. McMillin; Fredrick L. Roder
    Date: 1989
    Source: Forest Products Journal 39(11/12):62-64
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.0 MB)


    Detecting internal defects in sawlogs and veneer logs with computerized tomographic (CT) scanning is possible, but has been impractical due to the long scanning time required. This research investigated a new scanner able to acquire 34 cross-sectional log scans per second. This scanning rate translates to a linear log feed rate of 85 feet (25.91 m) per minute at one scan each 0.5 inch (1.27 cm). This speed approaches that required at commercial sawmills and veneer plants.

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    Wagner, Francis G.; Taylor, Fred W.; Ladd, Douglas S.; McMillin, Charles W.; Roder, Fredrick L. 1989. Ultrafast CT scanning of an oak log for internal defects. Forest Products Journal 39(11/12):62-64

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