high-energy photon therapy

Definition / meaning of high-energy photon therapy

A type of radiation therapy that uses high-energy photons (units of light energy). High-energy photons penetrate deeply into tissues to reach tumors while giving less radiation to superficial tissues such as the skin.

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Find More About 'high-energy photon therapy'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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