RODIOGRAPHY OF TREES AND WOOD PRODUCTS

USDA FOREST SERVICE PERSONNEL HAVE DEVELOPED A MOBILE FIELD X-RAY UNIT AND RELATED NDT PROCEDURES FOR INSPECTING TREES AND WOOD PRODUCTS. A DESCRIPTION OF THE UNIT AND ITS POSSIBLE APPLICATIONS IS PRESENTED. THE DEVELOPMENT OF EXPOSURE CURVES FOR OAK, CONTROL OF SECONDARY RADIATION, AND CONTRUCTION OF WOODPENETRAMETERS IS DISCUSSED. THE UNIT WAS TESTED UNDER FOREST CONDITIONS IN KENTUCKY. CRYPTIC DISCONTINUITIES SUCH AS DECAY AND INSECT GALLERIES, AND MAN-MADE INCLUSIONS SUCH AS WIRE AND BUCKSHOT, WERE READILY DISCERNIBLE IN RADIOGRAPHS. THIS MOBIILE X-RAY UNIT HAS MANY APPLICATIONS IN FOREST AND SHADE TREE WORK. FOR EXAMPLE, TREE PATHOLOGISTS AND ENTOMOLOGISTS COULD USE IT TO INVESTI- GATE THE EXTENT OF INTERNAL INSECT DAMAGE AND DECAY IN TREES WHERE IT IS UNDESIRABLE TO CUT THEM; MUNICIPAL FORESTRY DEPARTMENT AND SHADE TREE COMPANIES COULD USE IT TO DETERMINE THE CONDITION OF STREET AND SHADE TREES. /DOT/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00255327
• Authors:
  • Beaton, J A
  • White, W B
  • Berry, F H
• Publication Date: 1972-10

Media Info

• Pagination: p. 14a-7a
• Serial:
  • Materials Evaluation
  • Volume: 30
  • Issue Number: 10
  • Publisher: American Society for Nondestructive Testing
  • ISSN: 0025-5327

Subject/Index Terms

• TRT Terms: Forestry; Portable equipment; Protection against environmental damage; Trees; Wood products; X rays
• Uncontrolled Terms: Mobile equipment
• Old TRIS Terms: Tree damage
• Subject Areas: Design; Environment; Highways;

Filing Info

• Accession Number: 00205217
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 19 1973 12:00AM