A Tumour at a Depth of 10 Cm Is Treated

question 9

Multiple Choice

A tumour at a depth of 10 cm is treated with a radiation beam delivering 1.86 Gy. What is the percent depth dose function for the tumour if the maximal dose the patient received was 2.3 Gy?

• A)0.8%
• B)4%
• C)12%
• D)81%

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Definitions:

Salvage Value

The estimated resell value of an asset at the end of its useful life.

Discount Rate

The interest rate used to discount future cash flows to their present value, often in the context of investment appraisal or determining the net present value.

Net Present Value

The difference between the present value of cash inflows and outflows over a period, used in capital budgeting to assess profitability of investments.

Working Capital

The difference between a company's current assets and its current liabilities.