Southern Research Station

Title: Ultrafast CT scanning of an oak log for internal defects

Author: Wagner, Francis G.; Taylor, Fred W.; Ladd, Douglas S.; McMillin, Charles W.; Roder, Fredrick L.

Date: 1989

Source: Forest Products Journal 39(11/12):62-64

Description: 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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Citation

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