Polychromatic X-Ray Attenuation Characteristics and Wood Densitometry Applications

Authors

  • M. L. Hoag
  • R. L. Krahmer

Keywords:

Polychromatic X-ray, attenuation, cellulose acetate, wood density, moisture content

Abstract

The use of polychromatic X-ray energy in wood densitometry complicates the mathematical relationship between the material and X-ray attenuation. Attenuation of polychromatic X-ray energy through cellulose acetate was investigated and characterized. Under polychromatic radiation with 30 keV maximum photon energy, an attenuation coefficient of 0.638 cm2/g was determined for samples of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) from two trees at 9% equilibrium moisture content. X-ray energy was sensitive to wood moisture content within a 2% range.

References

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Published

2007-06-28

Issue

Number 1 / January 1991

Section

Research Contributions

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