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LINEAR ATTENUATION COEFFICIENT (μ)

Physics

LINEAR ATTENUATION COEFFICIENT (μ)

1.

2. (where pe = photoelectric effect, r = Reyleigh scatter, c = Compton scatter).

3. The fraction of photons removed from an X‐ray beam is characterised by the linear attenuation coefficient.

4. A parameter that quantifies the attenuating properties of a material & is the probability that a photon interacts per unit length of the material it travels through.

5. Modified by: density, atomic number, photon energy.


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REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018

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