LINEAR ATTENUATION COEFFICIENT (μ)

#### Physics

LINEAR ATTENUATION COEFFICIENT (μ)

2. $\mu&space;=&space;\mu&space;_{pe}+\mu_{r}+\mu_{c}$ (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.

##### 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