Ultrafast CT scanning of an oak log for internal defects

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

Treesearch

Ultrafast CT scanning of an oak log for internal defects

Informally Refereed

Authors:

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

Year:

1989

Type:

Scientific Journal

Station:

Southern Research Station

Source:

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

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Abstract

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.

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