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A dose of 3000cGy is delivered to a depth of 8cm where the percent depth dose...

A dose of 3000cGy is delivered to a depth of 8cm where the percent depth dose is 76%. What is the dose to an underlying organ at 14cm depth where the percent depth dose is 58%? The dose at 14cm depth should be lower than the dose at 8cm for two main reasons - briefly explain these reasons.

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