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FACTORS INFLUENCING RADIATION RISK

Physics

FACTORS INFLUENCING RADIATION RISK

1. Dose rate & amount - slower rate = less biological effect. Allows time for recovery in the irradiated tissue. This is the principle underlying radiotherapy fractionation.

2. Type of radiation - high vs low LET radiation.

3. Tissue radiosensitivity - rapidly dividing & poorly differentiated cells are more sensitive to radiation induced damage.

4. Age at exposure - the younger the irradiated person, the greater the risk.


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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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