Radiation Dosimetry: Treatment Planning Dosimetry Basics - Beams, Fields, and Dose — Flashcards | OSHA Standards | FatSkills

Radiation Dosimetry: Treatment Planning Dosimetry Basics - Beams, Fields, and Dose — Flashcards

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Treatment planning dosimetry determines beam arrangement, field size, and dose distribution to deliver prescribed tumor dose while minimizing dose to organs at risk (OARs). Dose is typically prescribed in Gy.

Worked example:
A tumor requires 60 Gy in 30 fractions → 2 Gy per fraction.
 

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Fractionation in radiation therapy primarily reduces:
Normal tissue toxicity
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