A Patient Is Being Treated on the 18-MV Beam to a PA

question 26

Multiple Choice

A patient is being treated on the 18-MV beam to a PA spine at a depth of 10 cm.The collimator setting is 10 × 13 with no blocks.The dose is 300 cGy per fraction.What is the dose delivered to Dmax?

• A) 375 cGy
• B) 240 cGy
• C) 400 cGy
• D) 300 cGy

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