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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Radiación con haz de fotón

Photon-beam radiation (FOH-ton beem RAY-dee-AY-shun)
A type of radiation therapy that reaches deep tumors with high-energy x-rays made by a machine called a linear accelerator.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.