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SCATTER

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SCATTER

1. Primary radiation carries, whilst scattered radiation obscures, useful information.
2. The amount of scattered radiation (S) is several times the amount of primary radiation (P) reaching the detector.
3. The ratio of scattered to primary radiation depends on - area of the beam (field size) & patient thickness.
4. Typical S:P ratios are 4:1 for a CXR and 9:1 for a lateral pelvis.


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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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