An x-ray technician works 5 days per week, 50 weeks per year. Assume that the te

Question

An x-ray technician works 5 days per week, 50 weeks per year. Assume that the technician takes an average of nine x-rays per day and receives a dose of 4.7 rem/yr as a result.
(a) Estimate the dose in rem per x-ray taken.
____________________ rem/x-ray

(b) How does this result compare with the amount of low-level background radiation the technician is exposed to? Assume that low-level radiation from natural sources, such as cosmic rays and radioactive rocks and soil, delivers a dose of approximately 0.13 rem/year per person.
_______________ times the normal background level

Explanation / Answer

a)

50 * 5 * 9 = 2250 x-rays/year

dose = 4.7/2250 = 0.00209 rem/x-ray

b)

4.7/0.13 = 36.2 times the normal background level

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