Problem11
Section 32.2: Biological Effects of Ionizing Radiation

Question

What is the dose in Sv in a cancer treatment that exposes the patient to 200 Gy of γ rays?

Question by OpenStax is licensed under CC BY 4.0

Final Answer

200 Sv

Solution video

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Video Transcript

This is College Physics Answers with Shaun Dychko. A person is undergoing cancer treatment using gamma rays and we are told what the absorbed dose in grays is and we wanna divide that by the relative biological effectiveness to calculate the dose equivalent in sieverts. So we need to lookup in table [32.2] what the relative biological effectiveness of gamma rays are and it's 1. So we have 200 grays divided by 1 giving us 200 sieverts.

Comments

featherbrain·
Shouldn't the formula be Sv = (Gy)(RBE)? It doesn't change the answer though since RBE = 1
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