STUDY GUIDE 10, SELF TEST 4

© Physics Department, University of Guelph.

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1. A 10.0 gram sample of tissue receives a dose of X-rays of 100 rem. The QF for this particular radiation is 1.10.

(a) What is the dose in rads?

(b) How much energy in joules is absorbed by the sample?

(c) If this is soft tissue, what would be the exposure in roentgens?

2. Your dentists asks you if an alpha particle source might give him a better picture of your teeth than his X-ray tube. Would you encourage or discourage this change? Why?

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