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file:Figure 1.4.1.jpg|Figure 1. A TrueBEAM Radiotherapy System by Varian Medical Systems (Photo credit: Dr. W. Small, Loyola University Chicago).
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→Radiation Therapy
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[[file:Figure 1.4.1.jpg|200px|thumb|'''Figure 5:''' A TrueBEAM Radiotherapy System by Varian Medical Systems (Photo credit: Dr. W. Small, Loyola University Chicago)]]
Radiation therapy utilizes ionizing radiation to treat malignant and benign diseases. It has become a standard of care for treating many types of cancer. Current medical practice uses radiation therapy in about half of all newly diagnosed cancer cases. Radiation therapy works by exploiting radiobiological differences between cancer and normal cells/tissues, and by depositing radiation dose in cancer tumours while keeping doses to surrounding normal tissues below damaging thresholds as much as possible.
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