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X-Ray Fluorescence Technology. Proven to work well and has been used extensively by many wood treating plants to test retention levels. Standardized by the AWPA. Using the Spectro/Asoma model 400 unit (different from the wood treatment industry). Theory of X-Ray Fluorescence.

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x ray fluorescence technology

X-Ray Fluorescence Technology

Proven to work well and has been used extensively by many wood treating plants to test retention levels.

Standardized by the AWPA.

Using the Spectro/Asoma model 400 unit (different from the wood treatment industry).

theory of x ray fluorescence
Theory of X-Ray Fluorescence
  • Incident X-ray from the analyzer strikes an electron occupying the lowest shell
  • Electron is ejected
  • An upper-shell electron drops down to fill the vacancy
  • X-ray characteristic to this elements’ energy is emitted

Nucleus

Ejected

e-

Transitioned

e-

Incident

X-Ray

Emitted

X-Ray

summary
Summary
  • Advantages
    • Very consistent.
    • It can not only differentiate between treated and untreated wood but gives the actual amount treated in specific units.
  • Disadvantages
    • Non-customized equipment
      • Hit analyze key  long print time.
    • Limited to no more than 1” distance.
    • Due to the radiation, a minimum 6” radial distance must be maintained at all times.
questions
Questions

www.eng.miami.edu/~hmsolo/sarasota/index_sara.htm

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