Using the 6-MV PDD Chart, What Is the Dose at 10

question 21

Multiple Choice

Using the 6-MV PDD chart, what is the dose at 10 cm if the dose at Dmax is 300 cGy per day on a 6-MV beam for a field size of 15 × 18?

• A) 205 cGy
• B) 210 cGy
• C) 215 cGy
• D) 225 cGy

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